Exhibit 99.1

Company Contact:
Ultralife Batteries, Inc.
Robert W. Fishback
(315) 332-7100
bfishback@ulbi.com

Investor Relations Contact:
Lippert/Heilshorn & Associates, Inc.
Jody Burfening
(212) 838-3777
jks@lhai.com

Media Contact:
Lippert/Heilshorn & Associates, Inc.
Chenoa Taitt
(212) 201-6635
ctaitt@lhai.com

                ULTRALIFE BATTERIES, INC. REPORTS SECOND QUARTER
          OPERATING INCOME OF $1.9 MILLION ON REVENUE OF $20.1 MILLION

     - Gross Profit Increases 50% on 30% Revenue Growth Over Prior Quarter -

Newark,  NY, August 7, 2003 - Ultralife  Batteries,  Inc.  (NASDAQ:  ULBI) today
reported  operating  income of $1.9 million on record  revenues of $20.1 million
for its second  quarter  ended June 28, 2003.  Net income was $2.1  million,  or
$0.16 per diluted  share,  including  $0.4  million of  non-cash,  non-operating
income from foreign  currency  translation  impacts  pertaining to  intercompany
loans. In addition,  the Company generated positive operating cash flow (defined
as operating income plus depreciation and amortization) of $2.7 million.

Revenues  for the  second  quarter  increased  134% to $20.1  million  from $8.6
million for the same  three-month  period in the prior year.  The $11.5  million
increase was driven by higher  shipments of the Company's  HiRate(R)  batteries,
notably the BA-5390  batteries,  which are used by military  organizations  in a
variety of communications and weapons systems.

Gross margin for the June 2003 quarter reached $4.7 million, or 24% of revenues,
compared  with $1.1 million,  or 13% of revenues,  in the same period a year ago
reflecting revenue growth and manufacturing efficiency  improvements.  Operating
expenses were $2.8 million,  consistent  with last year's level,  exclusive of a
$14.3  million  impairment  charge on certain  fixed  assets.  As a result,  the
Company  reported  operating  income of $1.9  million for the three months ended
June 28, 2003 compared to an operating  loss of $16.1 million in the prior year.
Net income amounted to $2.1 million, or $0.16 per diluted share, compared with a
net loss of $16.5 million, or $1.28 per share, for the same period a year ago.

Compared to the first  quarter  that ended March 29,  2003,  the second  quarter
gross margin grew 50% on a 30% revenue  gain,  and  operating  income  increased
three-fold from $0.6 million to $1.9 million.

For the first  six  months  of 2003,  revenues  reached  $35.5  million,  a 104%
increase  over the $17.4  million in the prior year.  This growth was  primarily
fueled by strong demand for HiRate batteries, in particular the BA-5390, as well
as higher 9-volt battery  shipments.  Operating income was $2.5 million compared
to an  operating  loss of $18.2  million in 2002 that  included a $14.3  million
asset impairment charge. Net income amounted to $2.5 million in the year-to-date
period in 2003,  or $0.19 per diluted  share,  compared with a net loss of $19.3
million in the same six-month period last year, or a loss of $1.52 per share.

"We set a goal at the beginning of this year to sustain  profitability  starting
in the first  quarter of 2003,  and we are  delivering,"  said Mr.  Kavazanjian,
president and chief executive  officer of Ultralife  Batteries.  "This quarter's
operating and gross margin expansion, and strong revenue growth, demonstrate the
positive  returns  we get from  additional  revenue  and the  management  team's
ability to execute on its near-term  growth plans. At the same time, we continue
to work  toward  expanding  in other  key  growth  markets,  including  medical,
automotive telematics and rechargeable."

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Third Quarter and Full Year Outlook

For the third quarter ending September 27, 2003,  management  expects  operating
income to exceed $2.1 million and revenue to reach at least $20.0 million.  This
compares to an operating loss of $1.9 in the same quarter the year before.

In addition,  management has revised its guidance for the full year 2003 and now
estimates that operating income and revenue will be  approximately  $7.0 million
and $75.0  million,  respectively.  This compares with an operating loss of $7.5
million, excluding a $14.3 million asset impairment charge, and revenue of $33.0
million,  respectively,  in 2002. The guidance  management  previously  provided
called for basic  earnings per share in the range of $0.35 to $0.45 and revenues
of $65.0 million,  which assumed  operating income in the range of approximately
$5.0 million to $6.3 million.

About Ultralife Batteries, Inc.

Ultralife  is a leading  developer,  manufacturer,  and marketer of standard and
customized lithium primary  (non-rechargeable),  lithium ion and lithium polymer
rechargeable  batteries.  Ultralife's high-energy batteries use advanced lithium
technology and are used in military, industrial and consumer portable electronic
products.  Through its range of standard products and ability to customize for a
wide range of applications,  Ultralife is able to provide the next generation of
battery solutions. OEM, retail and government customers include Energizer, Kidde
Safety,  Philips Medical Systems,  Radio Shack and the national defense agencies
of the United States and United Kingdom, among others.

Ultralife's headquarters, principal manufacturing and research facilities are in
Newark,  New York, near Rochester.  Ultralife (UK) Ltd., a second  manufacturing
and  research  facility,  is located  in  Abingdon,  U.K.  Both  facilities  are
ISO-9001/2000 certified.

This press  release  may  contain  forward-looking  statements  based on current
expectations  that involve a number of risks and  uncertainties.  The  potential
risks and  uncertainties  that could cause actual  results to differ  materially
include:   worsening  global  economic  conditions,   world  events,   increased
competitive   environment  and  pricing   pressures,   disruptions   related  to
restructuring actions and delays. Further information on these factors and other
factors  that  could  affect  Ultralife's   financial  results  is  included  in
Ultralife's  Securities and Exchange  Commission  (SEC)  filings,  including the
latest Annual Report on Form 10-K.

Detailed  information  on  Ultralife is  available  at the  Company's  web site,
www.ultralifebatteries.com.

Conference Call Information

Investors  are  invited to listen to a live  webcast of the  conference  call at
10:00 a.m. ET on August 7 at www.ultralifebatteries.com/invest.asp. To listen to
the live  call,  please  go to the web site at least  fifteen  minutes  early to
download and install any necessary audio  software.  For those who cannot listen
to the live broadcast,  a replay of the webcast will be available  shortly after
the call at the  same  location  for 90 days.  Investors  may also  listen  to a
telephone  replay of the conference  call by dialing  800-428-6051,  Reservation
#300352, starting at 12:00 p.m. ET August 7 until 12:00 p.m. ET August 15.

Ultralife and HiRate are registered trademarks of Ultralife Batteries, Inc.


                                     -MORE-



                            ULTRALIFE BATTERIES, INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (In Thousands, Except Per Share Amounts)
                                   (unaudited)

- --------------------------------------------------------------------------------



                                       Three Month Period Ended     Six Month Period Ended
                                         June 28,    June 30,        June 28,     June 30,
                                           2003        2002            2003        2002
                                         --------    --------        --------    --------
                                                                     
Revenues:
  Battery sales                          $ 19,828    $  8,370        $ 34,840    $ 17,197
  Technology contracts                        282         208             698         243
                                         --------    --------        --------    --------
Total revenues                             20,110       8,578          35,538      17,440

Cost of products sold:
  Battery costs                            15,209       7,305          27,264      15,212
  Technology contracts                        170         188             384         221
                                         --------    --------        --------    --------
Total cost of products sold                15,379       7,493          27,648      15,433
                                         --------    --------        --------    --------

Gross margin                                4,731       1,085           7,890       2,007

Operating expenses:
  Research and development                    646       1,099           1,231       2,137
  Selling, general, and administrative      2,187       1,755           4,149       3,736
  Impairment of long-lived assets              --      14,318              --      14,318
                                         --------    --------        --------    --------
Total operating expenses                    2,833      17,172           5,380      20,191
                                         --------    --------        --------    --------

Operating income (loss)                     1,898     (16,087)          2,510     (18,184)

Other income (expense):
  Interest, net                              (146)       (103)           (237)       (201)
  Equity loss in UTI                           --        (678)             --      (1,179)
  Miscellaneous                               397         362             187         265
                                         --------    --------        --------    --------
Income (loss) before income taxes           2,149     (16,506)          2,460     (19,299)

Income taxes                                   --          --              --          --
                                         --------    --------        --------    --------

Net income (loss)                        $  2,149    $(16,506)       $  2,460    $(19,299)
                                         ========    ========        ========    ========

Earnings (loss) per share - basic        $   0.17    $  (1.28)       $   0.19    $  (1.52)
                                         ========    ========        ========    ========
Earnings (loss) per share - diluted      $   0.16    $  (1.28)       $   0.19    $  (1.52)
                                         ========    ========        ========    ========

Average shares outstanding - basic         12,927      12,920          12,895      12,662
                                         ========    ========        ========    ========
Average shares outstanding - diluted       13,651      12,920          13,266      12,662
                                         ========    ========        ========    ========


                                     -MORE-



                            ULTRALIFE BATTERIES, INC.
                           CONSOLIDATED BALANCE SHEETS
                    (In Thousands, Except Per Share Amounts)
                                   (unaudited)

- --------------------------------------------------------------------------------

                                                        June 28,    December 31,
                                 ASSETS                   2003          2002
                                                        --------    ------------
Current assets:
   Cash and investments                                $   1,664      $   1,374
   Trade accounts receivable, net                         13,140          6,200
   Inventories                                             6,729          5,813
   Prepaid expenses and other current assets               1,110            968
                                                       ---------      ---------
     Total current assets                                 22,643         14,355

Property and equipment                                    17,260         15,336

Other assets                                               1,633          1,683
                                                       ---------      ---------

   Total Assets                                        $  41,536      $  31,374
                                                       =========      =========

LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
   Accounts payable                                    $   7,065      $   4,283
   Other current liabilities                               6,476          2,861
                                                       ---------      ---------
      Total current liabilities                           13,541          7,144

Long-term debt and capital lease obligations               1,703          1,987

Shareholders' equity:
   Common stock, par value $0.10 per share                 1,387          1,358
   Capital in excess of par value                        116,876        115,251
   Accumulated other comprehensive loss                   (1,081)        (1,016)
   Accumulated deficit                                   (88,512)       (90,972)
                                                       ---------      ---------
                                                          28,670         24,621
   Less -- Treasury stock, at cost                         2,378          2,378
                                                       ---------      ---------
       Total shareholders' equity                         26,292         22,243
                                                       ---------      ---------

Total Liabilities and Shareholders' Equity             $  41,536      $  31,374
                                                       =========      =========

                                       ###