AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 28, 2001
                                                      REGISTRATION NO. 333-67808

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   ----------

                                 AMENDMENT NO. 3
                                       TO
                                    FORM S-3

                                   ----------

                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933

                            ULTRALIFE BATTERIES, INC.

             (Exact Name of Registrant as Specified in its Charter)

                  Delaware                               16-387013
     (State or Other Jurisdiction of                  (I.R.S. Employer
      Incorporation or Organization)                Identification Number)

                             2000 Technology Parkway
                             NEWARK, NEW YORK 14513
                                 (315) 332-7100
    (Address, including Zip Code, and Telephone Number, including Area Code,
                  of Registrant's Principal Executive Offices)

                                   ----------

                               John D. Kavazanjian
                      President and Chief Executive Officer
                            Ultralife Batteries, Inc.
                             2000 Technology Parkway
                             Newark, New York 14513
                                 (315) 332-7100
            (Name, Address, including Zip Code, and Telephone Number,
                   including Area Code, of Agent for Service)

                                   ----------

                                    Copy to:

                             Jeffrey H. Bowen, Esq.
                           Harter, Secrest & Emery LLP
                            1600 Bausch & Lomb Place
                            Rochester, New York 14604
                                 (716) 232-6500

      Approximate date of commencement of proposed sale to the public: From time
to time after this Registration Statement becomes effective.

      If the only securities being registered on this Form are being offered to
dividend or interest reinvestment plans, please check the following box. [ ]

      If any of the securities being registered on this Form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box. [X]

      If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

      If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]

      If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE
A FURTHER AMENDMENT THAT SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.




                                                                      PROSPECTUS

                                1,199,000 SHARES

                            ULTRALIFE BATTERIES, INC.
                                  COMMON STOCK

                                   ----------

      This prospectus  relates to the public offering of 1,199,000 shares of our
common stock. Of the total 1,199,000 shares,  1,090,000 of such shares are being
registered for the accounts of the selling stockholders identified in Table A in
the section titled "Selling Stockholders". The remaining 109,000 of those shares
are being  registered for the accounts of future  stockholders  who will receive
their shares upon exercise of the warrants  held by those parties  identified in
Table B in the section titled "Selling Stockholders".  This offering will not be
underwritten.  The  shares we are  registering  may be  offered  by the  selling
stockholders  (including  those holding stock as a result of the future exercise
of the  warrants)  from  time to time in  transactions  in the  over-the-counter
market, in negotiated transactions, or in a combination of such methods of sale.
The shares may be offered at fixed prices that may be changed,  at market prices
prevailing at the time of sale, at prices related to prevailing market prices or
at negotiated prices. The selling stockholders (including those holding stock as
a result of the future exercise of the warrants) may effect such transactions by
selling the shares to or through broker-dealers.  We will not receive any of the
proceeds from the sale of these shares.


      Our common stock is quoted on the Nasdaq  National Market under the symbol
"ULBI." On December 27, 2001,  the last reported sale price for the common stock
was $4.10.


                                   ----------

      This  offering of our common stock  involves  certain  risks.  For further
information, please see the section entitled "Risk Factors".

      Neither the  Securities and Exchange  Commission nor any state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

                The date of this prospectus is December ___, 2001


                                      -1-


                                Table of Contents

                                                                            Page
                                                                            ----

Prospectus Summary                                                            3
Recent Developments                                                           3
Outlook                                                                       4
Risk Factors                                                                  5
Forward-Looking Statements                                                   11
Use of Proceeds                                                              11
Selling Stockholders                                                         11
Plan of Distribution                                                         15
Legal Matters                                                                15
Experts                                                                      15
Where You Can Find More Information                                          16
Incorporation of Information by Reference                                    16



                                      -2-


                               PROSPECTUS SUMMARY

      This summary highlights  selected  information and does not contain all of
the  information  that is  important  to you.  We urge  you to read  the  entire
prospectus  carefully  and  any  information  contained  in or  incorporated  by
reference in this prospectus  before you decide whether to buy our common stock.
You should pay special  attention  to the risks of investing in our common stock
discussed  under Risk  Factors  below.  Unless the context  otherwise  requires,
references in this  prospectus to Ultralife,  we, us, and our refer to Ultralife
Batteries, Inc. and our subsidiaries.

About Ultralife Batteries, Inc.


      We develop, manufacture and market a wide range of standard and customized
primary  and  rechargeable  lithium  batteries  for  use  in  a  wide  array  of
applications and markets, including military,  automotive telematics, safety and
medical,  and  computers  and  communications.  We believe that our  proprietary
technologies  allow us to offer batteries that are ultra-thin,  light weight and
that  generally  achieve  greater  operating  performance  than other  batteries
currently  available.  We sell  our  products  directly  to  original  equipment
manufacturers  ("OEMs")  in the United  States  and abroad and have  contractual
arrangements with sales  representatives who market our products on a commission
basis in  particular  areas.  We also  distribute  our  products to domestic and
international distributors and retailers that purchase our batteries for resale.
We have obtained ISO 9001 certification for our lithium batteries  manufacturing
operations in Newark, New York and Abingdon,  England.  As of November 30, 2001,
we had approximately 450 employees worldwide.


      We were formed in December 1990 as a Delaware corporation.  In March 1991,
we acquired certain technology and assets from Eastman Kodak Company relating to
its 9-volt  lithium  manganese  dioxide  primary  battery and in June 1994, as a
result of the formation of our United  Kingdom  subsidiary  and  acquisition  of
certain battery-related assets, acquired a presence in Europe. In December 1998,
we announced a joint  venture to produce our polymer  rechargeable  batteries in
Taiwan.

      Our  principal  executive  office is located at 2000  Technology  Parkway,
Newark, New York 14513. Our telephone number is (315) 332-7100.

                               RECENT DEVELOPMENTS

      In October 2001, we were informed by our primary lending  institution that
our  borrowing  availability  under our $20  million  credit  facility  had been
effectively  reduced  to zero as a result  of a recent  appraisal  of our  fixed
assets.  Accordingly,  our  liquidity  depends on our  ability  to  successfully
generate  positive cash flow from  operations and achieve  adequate  operational
savings.  We are also exploring  opportunities  for new or additional  equity or
debt financing. Notwithstanding the foregoing, there can be no assurance that we
will  have  sufficient  cash  flows  to meet our  working  capital  and  capital
expenditure requirements.

      On  October  15,  2001,  we  announced  the  award of  contracts  from the
Department of the Army (CECOM) and the Department of Justice (UNICOR) for two of
its  lithium-manganese  dioxide (Li/MnO2) primary  (non-rechargeable)  cells and
batteries made in our Newark, New York facility. These contracts total in excess
of $3.0  million,  with  deliveries  expected  to begin  immediately.  The first
contract is an additional  quantity  release  against an existing  contract with
UNICOR  previously  announced  in  December  2000 for the  BA-5368/U  cell.  The
BA-5368/U battery is used in the Tri-Service AN/PRC-90 pilot rescue radio, which
is extensively used by the U.S. Military, Coast Guard, Customs, and the National
Guard as well as other  government  agencies.  Deliveries are scheduled  through
March 2002. The second contract,  with deliveries  scheduled  through June 2002,
represents  releases  exercised by CECOM (U.S. Army  Communications  Electronics
Command) for the BA-5372/U battery under a contract that was initially announced
in April 1999. The BA-5372/U  battery is commonly used as memory back-up for the


                                      -3-


AN/PRC-119  MANPACK Single Channel Ground and Airborne Radio System  (SINC-GARS)
as well as other electronic devices.

      On November 21, 2001, we announced the  appointment  of William A. Schmitz
as Chief Operating  Officer.  Mr.  Schmitz,  formerly Vice President and General
Manager of our Primary Battery Business,  now has responsibility for all Primary
and  Rechargeable  battery  operations  worldwide.  Mr. Eric Dix,  formerly Vice
President and General Manager of the Rechargeable Battery Business,  will report
as a staff  consultant  to John D.  Kavazanjian,  President and CEO. The Company
also announced that Nancy C. Naigle, formerly Vice President of Worldwide Sales,
has been appointed Vice  President of Sales and Marketing,  with  responsibility
for  worldwide  sales and  marketing  operations.  Julius  Cirin,  formerly Vice
President of Corporate  Marketing,  has been appointed Vice President of Product
and Industry Marketing and will retain corporate marketing  responsibility under
Ms. Naigle.

      On December 5, 2001, we reported that in response to increased demand from
the  U.S.  Army,  Ultralife  and the  State of New York  recently  announced  an
expansion program that is expected to create over 100 new manufacturing  jobs at
Ultralife  by the end of 2002.  Lt.  Governor  Mary  Donohue of the State of New
York, state and local officials,  and Ultralife  executives gathered recently to
announce our  expansion  plans that include:  the purchase of new  manufacturing
equipment  to be used to  increase  capacity  and  production,  specifically  to
produce  batteries for the U.S.  Army; a $300,000  commitment  from Empire State
Development;  and a $750,000  deferred loan that could convert into a grant from
the Governor's Office for Small Cities, through Wayne County.


      On December 12,  2001,  we  announced  the election of Charanjit  Singh as
Chairman of the Board of Directors.  He replaces Arthur  Lieberman,  who stepped
down after  three years as Chairman  of the Board.  Mr.  Lieberman  remains as a
Director of Ultralife. Mr. Singh has been a Director of the Company since August
2000.

      On December 19, 2001,we announced the election of two corporate  officers.
Dr. Colin Newnham was appointed Vice President and Managing Director of European
Operations  and Patrick R. Hanna,  Jr. was appointed Vice President of Corporate
Business  Strategy.  Dr.  Newnham  joined the Company in 1994,  and has held the
position of Managing Director of Ultralife  Batteries (UK) Ltd. since July 1999.
He has over 30 years  experience  in the  battery  industry  where he has held a
variety of senior  positions and worked on a number of primary and  rechargeable
battery  technologies with companies such as Ever Ready and the Dowty Group. Mr.
Hanna  joined the Company in February  2000 as  Director of  Corporate  Business
Planning.  Prior to that he spent 23 years with the Xerox Corporation and served
in many capacities in the areas of strategic and business planning development.


                                     OUTLOOK


      We expect to achieve a modest  increase  in  consolidated  revenues in the
fiscal quarter ending  December 31, 2001 as compared to the fiscal quarter ended
September 30, 2001.  During the second fiscal quarter ending  December 31, 2001,
we are projecting growth to come largely from standard cylindrical and high rate
batteries for growth in military markets. Sales of 9-volt batteries are expected
to decline from the prior  quarter due to current  softness in orders from smoke
detector and medical  customers.  We expect to take advantage of our flexibility
to tailor and  develop  our  existing  and new  products  that will  continue to
enhance  revenue  growth  throughout  the  year.  Additionally,  we have  seen a
noticeably higher level of interest from the military since the tragic events of
September  11,  2001.  We believe that we are  well-positioned  with our current
portfolio of products, and our new products in development,  to meet the current
demands communicated to us by the military,  both in the US and UK. With respect
to the full fiscal year, we are  projecting  growth in virtually all major areas
of our business - 9 volt, standard cylindricals, high rate, and rechargeable. We
expect to take advantage of our ability to customize and



                                      -4-



develop new products that will continue to enhance  growth  throughout the year.
We believe that  customer  demand,  most notably in our military  markets,  will
continue  to grow.  This  growth  is not only  related  to the  success  we have
experienced  with our  BA-5368  and  BA-5372  battery  products,  but it is also
related to our  anticipated  success with the development of other new batteries
that are used by military organizations.  While some of this increased demand is
related to the war on  terrorism,  most of our growth  projection is a result of
our  anticipated  ability to obtain new business as we have been working closely
in design activities with the US Army and the UK Ministry of Defence. As we have
indicated  previously,  we continue to believe  revenues will increase year over
year by at least 40%.


      We  previously  set two key  financial  goals - to  reach  operating  cash
breakeven by December 2001 and to attain  positive net income by June 2002.  Due
to the recent  slowdown in the economy which has largely  impacted  sales of our
rechargeable batteries, we have extended our goal for cash breakeven to occur in
the  March  2002  quarter,   but  remain   steadfast  on  our  goal  to  achieve
profitability by June 2002.


      In October and November of 2001, we realigned our resources to address the
changing  market  conditions and to better meet customer  demand in areas of our
business that are growing.  The realignment did not significantly  change any of
our existing operations nor were any product lines  discontinued.  A majority of
employees  affected by this  realignment  were re-deployed from our rechargeable
segment and support  functions  into open direct labor  positions in our primary
segment, due to the significantly  growing demand for primary batteries from the
military.  Less than 7% of our total employees were terminated.  The realignment
did not result in any  significant  severance  costs.  We expect to realize cost
savings from these  measures of  approximately  $1.5 million per quarter.  These
quarterly  savings are comprised of approximately  $1.1 million of reduced labor
costs,  approximately  $0.2 million of reduced material usage, and approximately
$0.2 million of lower administrative expenses.  Approximately one-third of these
savings,  due to the timing of  implementation  of the  actions  taken,  will be
realized in the fiscal quarter ending December 31, 2001, with the full amount to
be realized in the fiscal quarter ending March 31, 2002.


                                  RISK FACTORS

      An  investment in shares of common stock  offered  hereby  involves a high
degree of risk.  The following  risk factors  should be considered  carefully in
addition to the other  information  in this  prospectus  before  purchasing  the
common stock  offered by this  prospectus.  The  following  factors  could cause
actual  results  to  differ   materially  from  the  matters  described  in  the
forward-looking  statements,  with material and adverse effects on the Company's
business,  operating  results,  financial  condition  and the value of Ultralife
stock.

Our company  has a history of  operating  losses  and,  as a result,  our future
profitability is uncertain.

      We began operating our company in March 1991. During each year since 1991,
we have had net operating  losses.  These losses have  resulted  mainly from the
cost of researching,  developing and  manufacturing our products and general and
administrative  costs  associated  with operating our company.  Because of these
historical losses, we cannot assure that we will generate an operating profit or
achieve profitability in the future.

Our advanced rechargeable batteries have not achieved and may never achieve wide
acceptance in the market,  and our  competitors  may introduce new  rechargeable
batteries.

      Although we have begun volume  production of our  rechargeable  batteries,
our advanced rechargeable batteries have not yet achieved wide acceptance in the
market.   We  cannot  assure  that  a  market  will  ever  accept  our  advanced
rechargeable  batteries.  The  introduction  of new  products  is subject to the
inherent  risks of unforeseen  delays and the time  necessary to achieve  market
success for any individual  product is uncertain.  If volume  production  and/or
market penetration of our advanced


                                      -5-


rechargeable  batteries is delayed for any reason, our competitors may introduce
emerging  technologies  or  improve  existing  technologies  which  could have a
material adverse effect on our business.

The sale of our advanced  rechargeable  batteries  depends on our  relationships
with our OEMs and their general business conditions.

      We will  continue to promote  market  demand for,  and  awareness  of, our
advanced  rechargeable  batteries.  We will  accomplish  this partly through the
development of relationships  with OEMs that manufacture  products which require
the performance  characteristics  of our advanced  rechargeable  batteries.  The
success  of any  of  these  relationships  depends  upon  the  general  business
condition  of the OEM and our  ability  to  produce  our  advanced  rechargeable
batteries  at the quality and cost and within the period  required by such OEMs.
Our  failure to develop a  sufficient  number of  relationships  with OEMs could
reduce the  number of  batteries  we sell and  therefore  negatively  affect our
profitability. The deterioration of these relationships may adversely affect our
business.

      In fiscal 2001, one customer (Fyrnetics, Inc.) accounted for approximately
$3.1 million of sales, which amounted to approximately 13% of total revenues. We
believe that the loss of this customer's  business would  negatively  affect our
revenues.  While we believe that our current  relationship with this customer is
good, there is no assurance that this relationship will continue in the future.

Our business  depends on the success of OEMs  selling  products  containing  our
batteries.

      A  substantial  portion of our  business  will  depend upon the success of
products  sold by OEMs  that  use  our  batteries.  Therefore,  our  success  is
substantially  dependent  upon  the  acceptance  of the  OEMs'  products  in the
marketplace.  We are subject to many risks beyond our control that influence the
success or failure of a particular  product  manufactured by an OEM,  including,
competition  faced by the OEM in its particular  industry;  market acceptance of
the OEM's product; the engineering, sales, marketing and management capabilities
of the OEM; technical  challenges  unrelated to our technology or products faced
by the OEM in developing its products; and, the financial and other resources of
the OEM.

We may not be able to accommodate increased demand for our advanced rechargeable
batteries or our other products, and this may adversely affect our revenues.

      Rapid  growth  of our  advanced  rechargeable  battery  business  or other
segments of our business may significantly strain our management, operations and
technical  resources.  If we are successful in obtaining  rapid market growth of
our  advanced  rechargeable  batteries,  we will be  required  to deliver  large
volumes of quality  products to our  customers on a timely basis at a reasonable
cost to those  customers.  We cannot  assure,  however,  that our business  will
rapidly grow or that our efforts to expand our manufacturing and quality control
activities  will be  successful  or that we will be able to  satisfy  commercial
scale production requirements on a timely and cost-effective basis. We will also
be required to continue to improve  our  operations,  management  and  financial
systems and controls. Our failure to manage our growth effectively could have an
adverse  effect on our  ability to produce  product  and meet the demands of our
customers.

We face competition from a number of companies that have greater  resources than
we do and that may develop more popular products than ours.

      The primary and rechargeable  battery industry is characterized by intense
competition  with a large  number of  companies  offering  or seeking to develop
technology  and products  similar to ours.  We are subject to  competition  from
manufacturers  of traditional  rechargeable  batteries,  such as nickel- cadmium
batteries,   from  manufacturers  of  rechargeable   batteries  of  more  recent
technologies,  such as nickel-metal  hydride and lithium  batteries,  as well as
from  companies  engaged  in the  development  of  batteries  incorporating  new
technologies.  We also compete with large and small  manufacturers  of alkaline,
carbon-zinc,  seawater,  high  rate  and  primary  batteries  as well  as  other
manufacturers of lithium batteries. Manufacturers of batteries include Eveready,
Sanyo Electric Co. Ltd., Sony Corp., Toshiba


                                      -6-


Corp., Matsushita Electric Industrial Co., Ltd., Duracell  International,  Inc.,
Saft-Soc des ACC, Sony Corp., Toshiba Corp., Matsushita Electric Industrial Co.,
Ltd.,  Sanyo  Electric  Co.  Ltd.  and  Duracell  International,  Inc.,  Valence
Technology,  Inc.,  Lithium  Technology  Corporation,  and Yuasa-Exide,  Inc. We
cannot assure that we will successfully compete with these  manufacturers,  many
of  which  have  substantially  greater  financial,  technical,   manufacturing,
distribution,  marketing,  sales and other resources.  Many companies, some with
substantially  greater  resources than ours, are developing a variety of battery
technologies  which  are  expected  to  compete  with our  technology.  If these
companies  successfully  market their batteries  before the  introduction of our
products,  there could be a material  adverse  effect on our ability to sell our
products and gain a  substantial  market  share.  The market for our products is
characterized  by changing  technology and evolving  industry  standards,  often
resulting  in product  obsolescence  or short  product  lifecycles.  Although we
believe that our batteries,  particularly  our 9-volt and advanced  rechargeable
batteries, are based on technology that is continually refined to meet the needs
of the marketplace,  there can be no assurance that competitors will not develop
technologies or products that would render our technology and products  obsolete
or less marketable.

The loss of certain management,  marketing, engineering or technical staff could
adversely affect our business.

      Because  of the  specialized,  technical  nature of our  business,  we are
highly  dependent on certain members of our management,  marketing,  engineering
and technical staff. If we lose the services or these members, this could have a
material  adverse  effect on our  ability to  produce  marketable  products.  In
addition  to  developing  manufacturing  capacity  so that we can  produce  high
volumes of our advanced  rechargeable  batteries,  we must attract,  recruit and
retain a sizeable workforce of technically  competent employees.  Our ability to
pursue  effectively our business strategy will depend upon, among other factors,
the  successful  recruitment  and  retention of  additional  highly  skilled and
experienced  managerial,  marketing,  engineering  and technical  personnel.  We
cannot assure that we will be able to retain or recruit this type of personnel.

Certain  components of our batteries pose safety risks that may cause  accidents
in our facilities and in the use of our products.

      Components of our  batteries  contain  certain  elements that are known to
pose safety risks. Our primary battery products incorporate lithium metal, which
when it reacts with water may cause fires if not handled properly.  For example,
a  December  1996  fire  at  our  Abingdon,   England  facility  shut  down  our
manufacturing  operation at this facility for 15 months.  In August 1997, a fire
occurred at our Newark,  New York facility,  damaging batteries in inventory but
not  disrupting  ongoing  production.  Fires  that  occurred  in July  1994  and
September 1995 at our Abingdon,  England  facility caused certain  manufacturing
operations to be halted for 1 or 2 days of  production.  Although we incorporate
safety procedures in our research,  development and manufacturing processes that
are designed to minimize safety risks, we cannot assure that more accidents will
not occur.  Although we currently carry  insurance  policies which cover loss of
our  plant  and  machinery,  leasehold  improvements,   inventory  and  business
interruption,  as well as personal injury losses related to accidents  caused at
our facilities,  any accident,  whether at our manufacturing  facilities or from
the use of our products,  may result in significant  production delays or claims
for  damages  resulting  from  injuries.  We could  incur  significant  costs in
connection with these types of losses.

We could incur significant costs for violations of or compliance with applicable
environmental laws and regulations.

      National,  state and local laws impose various  environmental  controls on
the  manufacture,  storage,  use and  disposal  of lithium  batteries  and/or of
certain  chemicals  used in the  manufacture of lithium  batteries.  Although we
believe  that  our  operations  are  in  substantial   compliance  with  current
environmental  regulations and that, except as noted in the risk factor entitled
"We may incur significant costs for environmental remediation at our Newark, New
York facility" below,  there are no  environmental  conditions that will require
material expenditures for clean-up at our present or former


                                      -7-


facilities or at  facilities to which it has sent waste for disposal,  there can
be no assurance that changes in such laws and regulations will not impose costly
compliance  requirements  on us or otherwise  subject us to future  liabilities.
Moreover, state and local governments may enact additional restrictions relating
to the disposal of lithium  batteries used by our customers  which could require
us to respond to those  restrictions or could  negatively  affect the demand for
those batteries.  In addition, the U.S. Department of Transportation and certain
foreign  regulatory  agencies that consider  lithium to be a hazardous  material
regulate the  transportation  of  batteries  which  contain  lithium  metal.  We
currently ship our lithium batteries in accordance with regulations  established
by the  U.S.  Department  of  Transportation.  There  can be no  assurance  that
additional or modified regulations relating to the manufacture,  transportation,
storage,  use and disposal of materials  used to  manufacture  our  batteries or
restricting  disposal of batteries will not be imposed or how these  regulations
will affect us or our customers.

We may incur significant costs for environmental  remediation at our Newark, New
York facility.

      Since  1998  when  we  entered  into a  lease/purchase  agreement  for our
facility in Newark, New York, we have been in regular communication with the New
York State Department of Environmental Conservation (NYSDEC) regarding low level
soil  contamination  at the  facility.  In  January of 2001,  we entered  into a
Voluntary  Clean-Up  Agreement  with the  NYSDEC  whereby  we agreed to  conduct
further environmental testing of soil and groundwater.  Testing was completed in
the  spring  of 2001 and the  results  were  communicated  to the  NYSDEC in the
summer.  We have not yet received  comments back from the NYSDEC. At the time of
the  acquisition  of the property in 1998, we estimated the cost of any required
remediation to be approximately  $230,000.  As a component of the lease/purchase
agreement, a former owner of the property agreed to share in the cost of further
testing and  remediation  with us. We cannot assure that we will not face claims
resulting in substantial liability which would have a material adverse effect on
profitability in the period in which such claims are resolved.

We rely on a limited number of suppliers for materials we use in our products.

      Certain  materials we use in our products are available only from a single
or a  limited  number  of  suppliers.  Additionally,  we may  elect  to  develop
relationships  with a single or limited  number of suppliers for materials  that
are  otherwise  generally  available.   Although  we  believe  that  alternative
suppliers  are  available  to supply  materials  that  could  replace  materials
currently  used by us and that, if  necessary,  we would be able to redesign our
products to make use of such  alternatives,  any interruption in our supply from
any supplier  that serves as our sole source could delay  product  shipments and
have a material adverse effect on our business,  financial condition and results
of operations.  Although we have experienced interruptions of product deliveries
by sole source suppliers,  these  interruptions  have not had a material adverse
effect on our business, financial condition and results of operations. We cannot
guarantee  that we will  not  experience  a  material  interruption  of  product
deliveries from sole source suppliers.

We cannot  guarantee the protection of our technology or prevent the development
of similar technology by our competition.

      Our  success  depends  more  on the  knowledge,  ability,  experience  and
technological  expertise of our  employees  than on the legal  protection of our
patents and other proprietary  rights.  We claim  proprietary  rights in various
unpatented technologies,  know-how, trade secrets and trademarks relating to our
products  and  manufacturing  processes.  We  cannot  guarantee  the  degree  of
protection these various claims may or will afford, or that our competitors will
not  independently   develop  or  patent  technologies  that  are  substantially
equivalent or superior to our technology.  We protect our proprietary  rights in
our  products  and  operations  through   contractual   obligations,   including
nondisclosure  agreements  with certain  employees,  customers,  consultants and
strategic  partners.  There can be no assurance  as to the degree of  protection
these  contractual  measures may or will afford.  We, however,  have had patents
issued and patent  applications  pending in the U.S.  and  elsewhere.  We cannot
assure (i) that  patents will be issued from any pending  applications,  or that
the claims allowed under any patents will be sufficiently broad to


                                      -8-


protect  our  technology,  (ii)  that  any  patents  issued  to us  will  not be
challenged,  invalidated or circumvented,  or (iii) as to the degree or adequacy
of protection any patents or patent  applications may or will afford.  If we are
found to be infringing  third party  patents,  there can be no assurance that we
will be able to obtain  licenses  with  respect to such  patents  on  acceptable
terms, if at all. Our failure to obtain  necessary  licenses could delay product
shipment or the  introduction  of new  products,  and costly  attempts to design
around such patents could foreclose the development,  manufacture or sale of our
products.

Our research and development efforts depend on technology transfer agreements.

      Our research and development of advanced  rechargeable  battery technology
and products utilizes internally-developed  technology,  acquired technology and
certain patents and related technology licensed by us pursuant to non-exclusive,
technology transfer  agreements.  There can be no assurance that our competitors
will  not  develop,  independently  or  through  the use of  similar  technology
transfer  agreements,  rechargeable  battery  technology  or  products  that are
substantially  equivalent or superior to the technologies and products currently
under research and development by us.

An adverse outcome of our relationship  with the China joint venture program may
adversely affect our financial condition.

      In  July  1992,  we  entered  into  several   agreements  related  to  the
establishment  of  a  manufacturing  facility  in  Changzhou,   China,  for  the
production and distribution in and from China of 2/3A lithium primary batteries.
Changzhou  Ultra Power Battery Co.,  Ltd., a company  organized in China ("China
Battery"),  purchased  from  us  certain  technology,  equipment,  training  and
consulting  services  relating to the design and operation of a lithium  battery
manufacturing  plant.  China  Battery  was  required to pay  approximately  $6.0
million to us over the first two years of the agreement,  of which approximately
$5.6 million has been paid.  We have been  attempting to collect the balance due
under this  contract.  China Battery has  indicated  that it will not make these
payments  until  certain  contractual  issues have been  resolved.  Due to China
Battery's  questionable  willingness  to pay,  we wrote off in  fiscal  1997 the
entire balance owed to us as well as our investment aggregating $805,000.  Since
China Battery has not purchased  technology,  equipment,  training or consulting
services from us to produce batteries other than 2/3 A lithium batteries,  we do
not believe that China Battery has the capacity to become our competitor.  We do
not anticipate that the  manufacturing  or marketing of 2/3 A lithium  batteries
will be a  substantial  portion of our product line in the future.  However,  in
December 1997, China Battery sent to us a letter  demanding  reimbursement of an
unspecified  amount  of losses  they have  incurred  plus a refund  for  certain
equipment  that  we  sold to  China  Battery.  We  have  attempted  to  initiate
negotiations to resolve the dispute.  However, an agreement has not yet reached.
Although  China  Battery  has not taken any  additional  steps,  there can be no
assurance  that China  Battery will not further  pursue such a claim  which,  if
successful,  would have a material  adverse  effect on our  business,  financial
condition  and results of  operations.  We believe  that such a claim is without
merit.  As we have  completely  written  down the  balance we believe is owed by
China Battery,  there is no risk for non-payment.  The remaining risk is related
to any  expenses  we may be liable for with  respect to the  liquidation  of the
assets of the venture.

We may face  liability if our batteries  fail to function  properly and if these
liabilities are not covered by insurance.

      Because certain of our primary batteries are used in a variety of security
and safety products and medical  devices,  we may be exposed to liability claims
if such a battery fails to function properly.  We maintain what we believe to be
sufficient  liability  insurance  coverage to protect against  potential claims;
however, there can be no assurance that the liability insurance will continue to
be available,  or that any such liability insurance would be sufficient to cover
any claim or claims.


                                      -9-


The market  price of our common  stock may be  volatile,  which  could cause the
value of your stock to decline.

      Future   announcements   concerning  us  or  our  competitors,   including
technological innovations or commercial products,  litigation or public concerns
as to the safety or commercial  value of one or more of our products,  may cause
the market  price of our common  stock to  fluctuate  substantially  for reasons
which may be unrelated  to operating  results.  These  fluctuations,  as well as
general economic,  political and market conditions,  may have a material adverse
effect on the market price of our common stock.

An adverse outcome of the lawsuit against us by certain  stockholders could have
a material adverse effect on our financial condition.

      In August 1998,  we, along with our  directors,  and certain  underwriters
were  named as  defendants  in a  complaint  filed in  federal  court by certain
stockholders,  alleging  that the  defendants,  during  1998,  violated  various
provisions of the federal  securities laws in connection with an offering of our
common  stock.  The  trial  court  twice  granted  our  motion  to  dismiss  the
stockholders'  complaint. The second time the court dismissed the complaint with
prejudice and directed the case to be closed.  The stockholders  filed an appeal
of the trial court's latest  dismissal.  Prior to the argument of  stockholders'
appeal, we entered into a settlement  agreement in which the stockholders agreed
withdraw  their appeal with  prejudice  in exchange for a settlement  payment of
$285,000.  This payment was to be mainly paid by our insurance carrier.  At that
time, we believed that the proposed settlement was in our best interests and the
best interests of our stockholders  because it would terminate the stockholders'
action and eliminate the risks of uncertainty inherent in any litigation.

      Since entering into the settlement  agreement,  the insurance  carrier has
commenced  liquidation  proceedings.  The insurance  carrier informed us that in
light of the liquidation proceedings, it would no longer fund our settlement. In
addition,  the value of the  insurance  policy is in serious  doubt.  Because of
these  developments  with the insurance  carrier,  we may cancel the  settlement
agreement and allow the stockholders to proceed with their appeal.

      We continue to believe that the stockholder  suit lacks merit and that the
court will dismiss the suit on appeal. However, the liquidation of the insurance
carrier  creates a new risk for our  company  because  we would have to bear the
significant  expenses of ongoing  litigation,  including any  potential  damages
award if stockholders  were to win the case.  These expenses will be without any
insurance  coverage.  Since  stockholders  are  seeking  damages in excess of $5
million,  we believe that an unfavorable  outcome would have a material  adverse
impact on our financial condition.

      We are presently evaluating our options, including whether to proceed with
the settlement either on the terms previously  negotiated or on other terms that
the  parties  may  mutually  agree  upon,  with  the  expectation  that any such
settlement would now be funded in whole or in large part by us. In addition,  we
are exploring our rights against the insurance carrier.

Our ability to borrow under our credit facility is impaired,  and we may have to
pursue other means of generating  cash to support our business with no guarantee
of succeeding.

      At  September  30,  2001,  we had a total  of  $4.9  million  of cash  and
investment  securities.  Based on our current financial outlook, we will require
additional external financing (debt or equity) to continue the implementation of
our growth strategies.  In October 2001, we were informed by our primary lending
institution  that  our  borrowing  availability  under  our $20  million  credit
facility had been effectively  reduced to zero as a result of a recent appraisal
of our fixed assets. Accordingly, our liquidity depends on


                                      -10-


our ability to  successfully  generate  positive cash flow from  operations  and
achieve adequate  operational  savings. We are also exploring  opportunities for
new or additional  equity or debt  financing.  We cannot  guarantee that we will
have sufficient  cash flows to meet our working capital and capital  expenditure
requirements.

                           FORWARD-LOOKING STATEMENTS

      This  prospectus,  including  information  contained in documents that are
incorporated  by  reference  in  this   prospectus,   contains   forward-looking
statements,  as that term is defined by federal  securities laws, that relate to
the  financial  condition,  results of  operations,  plans,  objectives,  future
performance and business of Ultralife.  These statements are frequently preceded
by, followed by or include the words believes, expects,  anticipates,  estimates
or similar expressions.  We have based these  forward-looking  statements on our
current  expectations  and  projections  about  future  events.  The  statements
contained in this prospectus  relating to matters that are not historical  facts
are forward-looking  statements that involve risks and uncertainties,  including
future demand for our products and services, the successful commercialization of
our advanced rechargeable batteries, general economic conditions, government and
environmental  regulation,  competition and customer  strategies,  technological
innovations in the primary and rechargeable  battery industries,  changes in our
business   strategy  or  development   plans,   capital   deployment,   business
disruptions,  including those caused by fire, raw materials,  supplies and other
risks and uncertainties, certain of which are beyond our control. In addition to
these risks,  in the section of this prospectus  entitled Risk Factors,  we have
summarized a number of the risks and uncertainties  that could affect the actual
outcome of the forward-looking statements included in this prospectus. We advise
you not to place undue reliance on these forward-looking  statements in light of
the material risks and  uncertainties  to which they are subject.  Should one or
more  of  these  risks  or  uncertainties  materialize,   or  should  underlying
assumptions  prove  incorrect,  actual results may differ  materially from those
described herein as anticipated,  believed,  estimated or expected. We undertake
no  obligation  to  publicly  update or revise any  forward-looking  statements,
whether as a result of new information, future events or otherwise.

                                 USE OF PROCEEDS

      We will not  receive  any of the  proceeds  from the sale of the shares of
common  stock by the  selling  stockholders.  To the extent,  however,  that the
warrants are exercised  through  payment of the exercise  price in cash,  rather
than a cashless  exercise,  we will receive the proceeds of those exercises.  We
have agreed to bear all expenses,  other than selling  commissions  and fees and
expenses  of  counsel  and  other  advisors  to  the  selling  stockholders,  in
connection with the registration of the shares being offered.

                              SELLING STOCKHOLDERS

      The  following  Table A sets  forth the  number of shares of common  stock
owned by each of the  selling  stockholders  who  subscribed  for  shares of our
common stock in our recent private placement. None of these selling stockholders
has had a material  relationship  with us within the past three years other than
as a  result  of  the  ownership  of  our  common  stock.  Because  the  selling
stockholders  may offer all or some of the common stock which they hold pursuant
to the offering contemplated by this prospectus, and because there are currently
no agreements, arrangements or understandings with respect to the sale of any of
the  shares,  no  estimate  can be given as to the amount of shares that will be
held by the selling  stockholders after completion of this offering.  The shares
offered  by this  prospectus  may be  offered  from time to time by the  selling
stockholders named below or by pledgees, donees, transferees or other successors
in interest who receive the shares as a gift, partnership  distribution or other
non-sale related transfer.


                                      -11-




                                                                Table A
                                                                -------

                                                 Number of Shares    Number of         Number of
                                                 Beneficially        Shares            Shares
                                                 Owned Prior to      Registered        Beneficially      Percent of
                                                 Completion of       for Sale          Owned After       Outstanding
                                                 the Offering        Hereby (1)        Completion        Shares after
                                                                                       of the            Completion of
Name of Selling Stockholder                                                            Offering          the Offering(2)
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                                  *
                                                                                                      
First Trust as trustee for Sheila Baird              22,000           22,000                  0
SERP

Weiss, Peck & Greer as trustee for                   10,000           10,000                  0                   *
Sheila Baird IRA

Weiss, Peck & Greer as trustee for                   28,000           16,000             12,000                   *
Murray Berliner Sep IRA

Weiss, Peck & Greer as trustee for                    5,500            4,000              1,500                   *
Stephan Bermas IRA

William A. Birnbaum                                  22,500           16,000              6,500                   *

William Birnbaum and Kathleen Birnbaum               22,500           16,000              6,500                   *

Harris J. Bixler                                     21,000           16,000              5,000                   *

Weiss, Peck & Greer as trustee for John               8,000            4,000              4,000                   *
V. Brennan IRA

Weiss, Peck & Greer as trustee for                    8,000            8,000                  0                   *
Julie Connelly IRA

Katharine Crossgrove                                 13,000            8,000              5,000                   *

Daeg Partners, LLP                                  574,500           92,000            482,500               3.92%

Donna Darnell                                         7,500            4,000              3,500                   *

Tirone E. David, M.D.                                25,000           12,000             13,000                   *

Weiss, Peck & Greer as trustee for John              17,000            8,000              9,000                   *
W. Dewey, IRA

Weiss, Peck & Greer as trustee for John              18,000            8,000             10,000                   *
Dorman IRA

Weiss, Peck & Greer as trustee for Joan              14,500            8,000              6,500                   *
Ellenbogen IRA

Weiss, Peck & Greer as trustee for                    9,500            4,000              5,500                   *
Marcia Goldstein IRA

Martha Grant                                         14,000            8,000              6,000                   *

Claire S. Gulamerian, Living Trust dtd               16,600            8,000              8,600                   *
6/7/96



                                      -12-




                                                                Table A
                                                                -------

                                                 Number of Shares    Number of         Number of
                                                 Beneficially        Shares            Shares
                                                 Owned Prior to      Registered        Beneficially      Percent of
                                                 Completion of       for Sale          Owned After       Outstanding
                                                 the Offering        Hereby (1)        Completion        Shares after
                                                                                       of the            Completion of
Name of Selling Stockholder                                                            Offering          the Offering(2)
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                                  *
                                                                                                      
Ingolstadt Ltd. BVI                                  26,000           16,000             10,500                   *

Oscar Lascano                                         9,000            4,000              5,000                   *

Weiss, Peck & Greer as trustee for                    9,600            4,000              5,600                   *
Stanley Mailman IRA

Barbara V. May                                        5,200            4,000              1,200                   *

Weiss, Peck & Greer as trustee for                   18,800           16,000              2,800                   *
Bernadette Murphy IRA

Joan Nazarro                                          8,000            4,000              4,000                   *

1004050 Ontario Inc.                                  9,000            4,000              5,000                   *

Arthur Panoff                                         9,300            8,000              1,300                   *

Patricia C. Remmer, Revocable Trust dtd              31,000           16,000             15,000                   *
7/22/92

Patricia C. Remmer, 1995 Charitable                  10,000            4,000              6,000                   *
Lead Trust

The Remmer Family Foundation                          8,000            4,000              4,000                   *

Weiss, Peck & Greer as trustee for                   19,000            8,000             11,000                   *
Dorothy Rivkin IRA

Maurice Schlossberg and Amy Schlossberg               5,000            8,000              5,000                   *

Weiss, Peck & Greer as trustee for Mary               7,000            4,000              3,000                   *
Simons IRA

Weiss, Peck & Greer as trustee for                   22,000           16,000              6,000                   *
Richard R. Stebbins

Sarah Tough                                           9,000            4,000              5,000                   *

Weiss, Peck & Greer as trustee for Leon              11,000            4,000              7,000                   *
Zeff IRA

Charles W. Phillips                                  10,000           10,000                  0                   *

Richard F. Morton                                    15,000            5,000             10,000                   *

Neal P. Brooks                                       38,000            5,000             33,000                   *

State of Wisconsin Investment Board               2,218,600          670,000          1,548,600              12.57%


                 Total                            3,355,600        1,090,000          2,273,600              18.46%


- ----------

* Represents beneficial ownership of less than 1%.


                                      -13-


(1)   This Registration  Statement shall also cover any additional shares of our
      common stock which  become  issuable in  connection  with the common stock
      registered for sale hereby by reason of any stock  dividend,  stock split,
      recapitalization or other similar transaction effected without the receipt
      of  consideration  which  results  in an  increase  in the  number  of our
      outstanding shares of common stock.

(2)   Based on 12,578,186  shares of the Company's  common stock, par value $.10
      per share,  outstanding  as of November  30,  2001,  less 27,250  treasury
      shares and 231,980 shares out of 700,000 shares owned by Ultralife Taiwan,
      Inc., a Taiwanese venture of which the Company owns approximately 33%.

      The  following  Table B sets forth the number of shares of common stock to
be owned upon exercise of the warrants issued to H.C. Wainwright & Co., Inc. and
several of its affiliates as partial  compensation for its services as placement
agent  in  connection  with  our  private  placement.  The  warrantholders  have
confirmed  to us  that  none  had  agreements  or  understandings,  directly  or
indirectly,  with any  person to  distribute  the  common  stock  issuable  upon
exercise of the  warrants.  Because the  warrantholders  or  subsequent  selling
stockholders  may offer all or some of the common stock which they hold pursuant
to the offering contemplated by this prospectus, and because there are currently
no agreements, arrangements or understandings with respect to the sale of any of
the  shares,  no  estimate  can be given as to the amount of shares that will be
held by the warrantholders or subsequent  selling  stockholders after completion
of this offering. The shares offered by this prospectus may be offered from time
to  time  by the  warrant  holders  or  subsequent  selling  stockholders  or by
pledgees,  donees,  transferees or other  successors in interest who receive the
shares as a gift, partnership distribution or other non-sale related transfer.



                                                      Table B
                                                      -------

                                                      Number of       Number of      Number of
                                                      Shares          Shares         Shares
                                                      Beneficially    Registered     Beneficially
                                                      Owned Prior     for Sale       Owned after
                                                      to Completion   Hereby (1)(2)  Completion         Percent of
                                                      of the                         of the             Outstanding
Name of Selling Stockholder                           Offering                       Offering           Shares
- -------------------------------------------------     -------------------------------------------       -------------
                                                                                                  
Eric Singer                                              38,900         38,900            0                   *

Matthew Balk                                              5,000          5,000            0                   *

Jason Adelman                                             5,000          5,000            0                   *

Scott Weisman                                             5,600          5,600            0                   *

H.C. Wainwright & Co., Inc.                              54,500         54,500            0                   *

                      Total                             109,000        109,000            0                   *


* Represents beneficial ownership of less than 1%.

(1) This  Registration  Statement shall also cover any additional  shares of our
common  stock  which  become  issuable  in  connection  with  the  common  stock
registered  for sale  hereby  by  reason of any  stock  dividend,  stock  split,
recapitalization  or other similar  transaction  effected without the receipt of
consideration  which  results in an  increase  in the number of our  outstanding
shares of common stock.

(2) This figure  includes  the shares  that will be issued upon  exercise of the
warrants by such selling stockholder.


                                      -14-


                              PLAN OF DISTRIBUTION


      We will receive no proceeds from this offering. The shares offered by this
prospectus  may be sold by the selling  stockholders  (including  those  holding
stock as a result of the future  exercise of the warrants)  from time to time in
transactions in the over-the-counter market, in negotiated transactions, or in a
combination  of such methods of sale,  at fixed prices which may be changed,  at
market prices  prevailing  at the time of sale, at prices  related to prevailing
market prices or at negotiated prices. The selling stockholders (including those
holding  stock as a result of the future  exercise of the  warrants)  may effect
such transactions by selling the shares to or through  broker-dealers,  and such
broker-dealers may receive compensation in the form of discounts, concessions or
commissions  from the selling  stockholders  (including those holding stock as a
result of the future  exercise of the  warrants)  and/or the  purchasers  of the
shares  for whom such  broker-dealers  may act as agents or to whom they sell as
principals,  or  both.  This  compensation  might  be  in  excess  of  customary
commissions.  The shares we are  offering  may be sold  either  pursuant to this
Registration  Statement  or  pursuant  to Rule 144  issued  by the SEC under the
Securities Act of 1933.  Some of our selling  stockholders  are affiliated  with
broker-dealers. To the best of our knowledge, any selling stockholder affiliated
with a broker-dealer purchased the shares of our common stock being sold by this
prospectus in the ordinary course of business,  and no benefits  accrued to them
as a result of their relationship with the broker-dealer.


      In  order to  comply  with  the  securities  laws of  certain  states,  if
applicable,  the  shares  will  be  sold  in  such  jurisdictions  only  through
registered or licensed  brokers or dealers.  In addition,  in certain states the
shares may not be sold unless they have been registered or qualified for sale in
the applicable  state or an exemption  from the  registration  or  qualification
requirement is available and is complied with.

      The selling stockholders (including those holding stock as a result of the
future  exercise  of  the  warrants)  and  any  broker-dealers  or  agents  that
participate  with the selling  stockholders  (including those holding stock as a
result of the future exercise of the warrants) in the distribution of the shares
may be deemed to be  "underwriters"  within the meaning of the Securities Act of
1933, and any  commissions  received by them and any profit on the resale of the
shares  purchased  by them  may be  deemed  to be  underwriting  commissions  or
discounts under federal law.

      Under applicable federal rules and regulations,  any person engaged in the
distribution of our common stock may not simultaneously  engage in market making
activities  with respect to our common  stock for a period of two business  days
prior  to the  commencement  of such  distribution.  In  addition,  and  without
limiting the foregoing,  each selling  stockholder will be subject to applicable
provisions of the Securities  Exchange Act of 1934 and the rules and regulations
of the SEC  promulgated  thereunder.  These rules include,  without  limitation,
Rules  10b-6 and  10b-7,  which may limit the timing of  purchases  and sales of
shares of our common stock by the selling stockholders  (including those holding
stock as a result of the future exercise of the warrants).

                                  LEGAL MATTERS

      The validity of the  securities  offered hereby will be passed upon for us
by Harter, Secrest & Emery LLP, Rochester, New York.

                                     EXPERTS

      The financial statements  incorporated by reference in this prospectus and
elsewhere in the  Registration  Statement  have been audited by Arthur  Andersen
LLP, independent public accountants,  as indicated in their reports thereto, and
are included  herein in reliance  upon the  authority of said firm as experts in
accounting and auditing in giving said reports.


                                      -15-


                       WHERE YOU CAN FIND MORE INFORMATION

      No  person  has been  authorized  to give any  information  or to make any
representations other than those contained in this prospectus in connection with
this offering of our common stock.  If any such  information or  representations
are given or made, such information or  representations  must not be relied upon
as having  been  authorized  by us, by any selling  stockholder  or by any other
person.  Neither the  delivery of this  prospectus  nor any sale made  hereunder
shall, under any  circumstances,  create any implication that information herein
is correct as of any time  subsequent to the date hereof.  This  prospectus does
not  constitute  an  offer  to sell or a  solicitation  of an  offer  to buy any
security  other than the common stock  covered by this  prospectus,  nor does it
constitute  an offer to or  solicitation  of any person in any  jurisdiction  in
which such offer or solicitation may not lawfully be made.

      We  are  subject  to the  informational  requirements  of  the  Securities
Exchange  Act  of  1934,  as  amended.  As a  result,  we  file  reports,  proxy
statements, information statements and other information with the Securities and
Exchange  Commission  (the "SEC").  You may inspect and copy any reports,  proxy
statements  and other  information  that we file at the  Public  Reference  Room
maintained by the SEC at 450 Fifth Street, N.W., Washington, D.C. 20549. You can
obtain copies of such  materials by mail from the Public  Reference  Room of the
SEC at Room 1024, 450 Fifth Street, N.W.,  Washington,  D.C. 20549 at prescribed
rates and at the Commission's  regional offices in New York City, 75 Park Place,
Room 1400,  New York,  New York 10007 and  Chicago,  Citicorp  Center,  500 West
Madison Street, Suite 1400, Chicago,  Illinois 60661. You may obtain information
on  the  operation  of  the  Public   Reference  Room  by  calling  the  SEC  at
1-800-SEC-0330.  The SEC maintains a World Wide Web site that contains  reports,
proxy and information  statements and other  information  regarding  registrants
that file  electronically  with the SEC.  The  address  of the SEC's web site is
http://www.sec.gov.  Our common stock is quoted on the Nasdaq  National  Market,
and such  material may also be  inspected  at the offices of Nasdaq  Operations,
1735 K Street N.W. Washington, D.C. 20006.

      We have filed with the SEC a Registration  Statement on Form S-3 (together
with  all  amendments  and  exhibits,  referred  to in  this  prospectus  as the
"Registration  Statement")  under the Securities Act of 1933 with respect to the
common  stock we are  offering.  This  prospectus  does not  contain,  nor is it
required  to  contain,  all of the  information  set  forth in the  Registration
Statement,  certain parts of which are omitted in accordance  with the rules and
regulations  of the SEC.  For further  information  regarding  us and our common
stock,  you should  refer to the  Registration  Statement  and its  exhibits and
schedules. The Registration Statement, including its exhibits and schedules, may
be inspected as described above.

                    INCORPORATION OF INFORMATION BY REFERENCE

      The  following  documents  filed with the SEC  pursuant to the  Securities
Exchange Act of 1934 are incorporated herein by reference:

      1. Our Annual Report on Form 10-K for the fiscal year ended June 30, 2001,
filed  September  26, 2001, as amended by our Annual Report on Form 10-K/A filed
December 12, 2001;


      2. Our  Quarterly  Report on Form 10-Q for the period ended  September 30,
2001,  filed November 7, 2001, as amended by our Quarterly Report on Form 10-Q/A
filed December 28, 2001;


      3. Our Forms 8-K filed on July 12, 2001 and July 24, 2001;

      4. The  description  of our  common  stock,  par  value  $.10  per  share,
contained in our  Registration  Statement on Form S-1 filed on December 23, 1992
(Registration  No.  33-54470),  including  any amendment or report filed for the
purpose of updating such description; and

      5. All reports and other documents filed by us pursuant to Sections 13(a),
13(c), 14 or 15(d) of the Securities Exchange Act of 1934 subsequent to the date
of this prospectus and prior to the termination of this offering.


                                      -16-


      Any statement  contained in a document  incorporated  by reference  herein
shall be deemed to be  incorporated  by reference in this  prospectus  and to be
part hereof from the date of filing of such documents. Any statement modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute  a part of this  prospectus.  We will  provide to you upon written or
oral request and without charge a copy of any or all of such documents which are
incorporated  herein by reference  (other than exhibits to such documents unless
such exhibits are specifically incorporated by reference into the documents that
this prospectus  incorporates).  Written or oral requests for copies (at no cost
to requestor)  should be directed to our Secretary,  at our principal  executive
offices:  Ultralife Batteries,  Inc., 2000 Technology Parkway,  Newark, New York
14513. Our telephone number is (315) 332-7100.


                                      -17-


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

      The  following  table  sets  forth  the  costs and  expenses,  other  than
underwriting  discounts and commissions,  payable by Ultralife  Batteries,  Inc.
(the  "Company") in connection  with the sale of common stock being  registered.
All amounts are estimates except the SEC registration fee.

             SEC Registration Fee                             $ 1,800
             Legal fees and expenses                           20,000
             Accounting fees and expenses                       9,000
             Miscellaneous fees and expenses                    5,500
                                                              -------
              Total                                           $36,300

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

      With respect to indemnification of directors and officers,  Section 145 of
the Delaware General  Corporation Law ("DGCL") provides that a corporation shall
have the power to indemnify any person who was or is a party or is threatened to
be  made a  party  to any  threatened,  pending  or  completed  action,  suit or
proceeding, whether civil, criminal, administrative or investigative (other than
an action by or in the right of the  corporation) by reason of the fact that the
person is or was a director,  officer, employee or agent of the corporation,  or
is or was serving at the  request of the  corporation  as a  director,  officer,
employee or agent of another corporation,  partnership,  joint venture, trust or
other enterprise, against expenses (including attorneys' fees), judgments, fines
and amounts paid in settlement actually and reasonably incurred by the person in
connection  with such action,  suit or  proceeding,  if the person acted in good
faith and in a manner the person reasonably  believed to be in or not opposed to
the best interests of the corporation,  and, with respect to any criminal action
or  proceeding,  had no  reasonable  cause to believe the  person's  conduct was
unlawful.  Under this provision of the DGCL, the termination of any action, suit
or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo
contendere or its equivalent,  shall not, of itself,  create a presumption  that
the person did not act in good faith and in a manner which the person reasonably
believed to be in or not opposed to the best interests of the  corporation,  and
with respect to any  criminal  action or  proceeding,  had  reasonable  cause to
believe that the person's conduct was unlawful.

      Furthermore,  the DGCL provides that a corporation shall have the power to
indemnify  any person who was or is a party or is  threatened to be made a party
to any threatened, pending or completed action or suit by or in the right of the
corporation  to procure a  judgment  in its favor by reason of the fact that the
person is or was a director,  officer, employee or agent of the corporation,  or
is or was serving at the  request of the  corporation  as a  director,  officer,
employee or agent of another corporation,  partnership,  joint venture, trust or
other  enterprise,  against  expenses  (including  attorneys' fees) actually and
reasonably  incurred by the person in connection  with the defense or settlement
of such  action or suit if the  person  acted in good  faith and in a manner the
person reasonably  believed to be in or not opposed to the best interests of the
corporation and except that no  indemnification  shall be made in respect of any
claim,  issue or matter as to which such person  shall have been  adjudged to be
liable  to the  corporation  unless  and only to the  extent  that the  Court of
Chancery or the court in which such action or suit was brought  shall  determine
upon application that,  despite the adjudication of liability but in view of all
the circumstances of the case, such person is fairly and reasonably  entitled to
indemnity  for such  expenses  which the Court of  Chancery  or such other court
shall deem proper.

      The Company's  Restated  Certificate of Incorporation (the "Certificate of
Incorporation")  and By-laws,  as amended (the "By-laws") provide for limitation
of the  liability  of  directors  to the  Company and its  stockholders  and for
indemnification  of  directors,  officers,  employees and agents of the Company,
respectively, to the maximum extent permitted by the DGCL.


                                      II-1


      The Certificate of Incorporation provides that directors are not liable to
the Company or its  stockholders  for monetary damages for breaches of fiduciary
duty as a director,  except for liability  (a) for any breach of the  director's
duty of loyalty to the Company or its  stockholders,  (b) for acts or  omissions
not in good faith or that involve intentional  misconduct or a knowing violation
of law, (c) for dividend  payments or stock repurchases in violation of Delaware
law, or (d) for any  transaction  from which the  director  derived any improper
personal benefit.

      The By-laws  include  provisions  by which the Company will  indemnify its
officers and directors and other persons against expenses,  judgments, fines and
amounts  paid in  settlement  with respect to  threatened,  pending or completed
suits or proceedings  against such persons by reason of serving or having served
the Company as officers, directors or in other capacities, except in relation to
matters with respect to which such persons shall be determined not to have acted
in good faith, lawfully or in the best interests of the Company. With respect to
matters to which the Company's officers,  directors,  employees, agents or other
representatives  are determined to be liable for misconduct or negligence in the
performance of their duties, the By-laws provide for indemnification only to the
extent that the Company determines that such person acted in good faith and in a
manner he reasonably  believed to be in or not opposed to the best  interests of
the Company.

ITEM 16. EXHIBITS

2.1               Share Purchase Agreement*
2.2               Warrant Agreement*
5                 Opinion of Harter, Secrest & Emery LLP*
23.1              Consent of Independent Accountants**
23.2              Consent  of  Harter,  Secrest  & Emery  LLP  (included  in the
                  Opinion of Counsel filed as Exhibit 5 hereto)*
24                Power of Attorney*


*These  Exhibits were  previously  filed with our Form S-3,  filed on August 17,
2001, File No. 333-67808.

**Filed with this Amendment No. 3 to Form S-3.


ITEM 17. UNDERTAKINGS

      The  undersigned  Registrant  hereby  undertakes  (subject  to the proviso
contained in Item 512(a) of Regulation S-K):

      (1) To file,  during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:

      (i)  to  include  any  prospectus  required  by  section  10(a)(3)  of the
Securities Act of 1933;

      (ii) to reflect in the  prospectus  any facts or events  arising after the
effective date of the Registration  Statement (or the most recent post-effective
amendment  thereof)  which,  individually  or  in  the  aggregate,  represent  a
fundamental  change in the information set forth in the Registration  Statement.
Notwithstanding the foregoing,  any increase or decrease in volume of securities
offered (if the total dollar value of  securities  offered would not exceed that
which  was  registered)  and any  deviation  from  the  low or  high  end of the
estimated  maximum offering range may be reflect in the form of prospectus filed
with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
volume  and price  represent  no more  than 20  percent  change  in the  maximum
aggregate  offering price set forth in the  "Calculation  of  Registration  Fee"
table in the effective registration statement; and

      (iii) to include  any  material  information  with  respect to the plan of
distribution  not  previously  disclosed  in the  Registration  Statement or any
material change to such information in the Registration Statement.

      (2)  That,  for  the  purpose  of  determining  any  liability  under  the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities


                                      II-2


offered  therein,  and the  offering  of such  securities  at that time shall be
deemed to be the initial bona fide offering thereof.

      (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

      The  undersigned  Registrant  hereby  undertakes  that,  for  purposes  of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Securities  Exchange  Act of  1934  that is  incorporated  by  reference  in the
Registration  Statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

      The undersigned Registrant hereby undertakes to supplement the prospectus,
after  expiration of the  subscription  period,  to set forth the results of the
subscription offer, the transactions by the underwriters during the subscription
period,   the  amount  of  unsubscribed   securities  to  be  purchased  by  the
underwriters,  and the terms of any subsequent reoffering thereof. If any public
offering by the  underwriters  is to be made on terms  different  from those set
forth on the cover page of the prospectus,  a  post-effective  amendment will be
filed to set forth the terms of such offering.

      Insofar as  indemnification  for liabilities  arising under the Securities
Act of 1933 may be permitted to directors,  officers and controlling  persons of
the  Registrant  pursuant  to  the  foregoing  provisions,   or  otherwise,  the
Registrant  has been advised that in the opinion of the  Securities and Exchange
Commission  such  indemnification  is against  public policy as expressed in the
Securities  Act of 1933 and is,  therefore,  unenforceable.  In the event that a
claim for  indemnification  against such liabilities  (other than the payment by
the  Registrant  of  expenses  incurred  or  paid  by  a  director,  officer  or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification  by it is  against  public  policy  as  expressed  in  the
Securities  Act of 1933 and will be governed by the final  adjudication  of such
issue.

      The  undersigned  registrant  hereby  undertakes to deliver or cause to be
delivered  the  prospectus,  to each  person to whom the  prospectus  is sent or
given,  the latest annual report,  to security  holders that is  incorporated by
reference  in  the  prospectus  and  furnished   pursuant  to  and  meeting  the
requirements  of Rule 14a-3 or Rule 14c-3 under the Exchange  Act of 1934;  and,
where  interim  financial  information  required to be presented by Article 3 of
Regulation S-X is not set forth in the  prospectus,  to deliver,  or cause to be
delivered  to each person to whom the  prospectus  is sent or given,  the latest
quarterly report that is specially incorporated by referred in the prospectus to
provide such interim financial information.


                                      II-3


                                   SIGNATURES


      Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies  that is has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized  in the  City of  Newark,  State  of New  York,  on this  28th day of
December, 2001.


                                    ULTRALIFE BATTERIES, INC.


Dated: December 28, 2001


                                    By:   /s/ JOHN D. KAVAZANJIAN
                                          --------------------------------------
                                              John D. Kavazanjian,
                                              President   and  Chief   Executive
                                              Officer,   and  with   Powers   of
                                              Attorney,   as   granted   in  the
                                              original  S-3  filing,   filed  on
                                              August 17, 2001

      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated:

Signature                     Title                            Date


                              Chief Executive Officer,         December 28, 2001
_____________________*        President and Director
John D. Kavazanjian           (Principal Executive Officer)

_____________________*        Vice President-Finance and       December 28, 2001
Robert W. Fishback            Chief Financial Officer
                              (Principal Financial Officer
                              and Principal Accounting
                              Officer)

_____________________*        Director                         December 28, 2001
Ranjit Singh

_____________________*        Director                         December 28, 2001
Arthur M. Lieberman

_____________________*        Director                         December 28, 2001
Joseph C. Abeles

_____________________*        Director                         December 28, 2001
Joseph N. Barrella

_____________________*        Director                         December 28, 2001
Carl H. Rosner

_____________________*        Director                         December 28, 2001
Patricia C. Barron


_____________________         Director                         December __, 2001
Daniel W. Christman


*By: /s/ JOHN D. KAVAZANJIAN
     --------------------------------------------
         John D. Kavazanjian, as Attorney-in-Fact



                                   II-4


                                INDEX TO EXHIBITS

2.1               Share Purchase Agreement*

2.2               Warrant*

5                 Opinion of Harter, Secrest & Emery LLP*

23.1              Consent of Independent Accountants**

23.2              Consent  of  Harter,  Secrest  & Emery  LLP  (included  in the
                  Opinion of Counsel filed as Exhibit 5)*

24                Power of Attorney*


*Previously filed with the Form S-3 filed on August 17, 2001, File No. 333-67808

**Filed with this Amendment No. 3 to Form S-3.