Exhibit 99.1

   Ultralife Batteries Receives $1.2 Million Military Battery Order


    NEWARK, N.Y.--(BUSINESS WIRE)--Dec. 12, 2006--Ultralife Batteries,
Inc. (NASDAQ: ULBI) has received an order valued at approximately $1.2
million from the U.S. Defense Department for its BA-5347/U military
batteries. Deliveries are expected to begin immediately and be
completed this month.

    The order represents the second production release under a
five-year contract awarded to Ultralife in February 2005 by the U.S.
Defense Department. The contract could reach a maximum value of $15
million.

    The BA-5347/U is an 11.1 ampere-hour, 6-volt non-rechargeable
lithium-manganese dioxide battery used to power the AN/PAS-13 Thermal
Weapon Sight. More than 25,000 of these advanced infrared weapon
sights have been fielded by the U.S. Armed Forces.

    About Ultralife Batteries, Inc.

    Ultralife is a global provider of high-energy power solutions and
communications accessories for diverse applications. The company
develops, manufactures and markets a wide range of non-rechargeable
and rechargeable batteries, charging systems and accessories including
power supplies, amplifiers, amplified speakers, equipment mounts, case
equipment and integrated communication systems for markets including
military, industrial and consumer portable electronics. Through its
portfolio of standard products and engineered solutions, Ultralife is
at the forefront of providing the next generation of power systems and
accessories. Industrial, retail and government customers include
General Dynamics, Philips Medical Systems, General Motors, Energizer,
Kidde Safety, Lowe's, Radio Shack and the national defense agencies of
the United States, United Kingdom, Germany, Australia and New Zealand,
among others.

    Ultralife's headquarters, principal manufacturing and research
facilities are in Newark, New York, near Rochester. Ultralife's three
other operating units are: Ultralife Batteries (UK) Ltd., in Abingdon,
England; McDowell Research in Waco, Texas; and ABLE New Energy in
Shenzhen, China. Detailed information on Ultralife is available at:
www.ultralifebatteries.com.

    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,
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.

    Note to editors: A photograph of the BA-5347/U battery is
available at the following link:
http://www.ultralifebatteries.com/images/lineart/hires/
BA-5347_hires.jpg. (Due to its length, this URL may need to be
copied/pasted into your Internet browser's address field. Remove the
extra space if one exists.)

    Ultralife(R) is a registered trademark of Ultralife Batteries,
Inc.

    CONTACT: Ultralife Batteries, Inc.
             Pete Comerford, 315-332-7100
             pcomerford@ulbi.com
             or
             Investor Relations:
             Lippert/Heilshorn & Associates, Inc.
             Jody Burfening, 212-838-3777
             jburfening@lhai.com