Exhibit 99.1

Ultralife Batteries, Inc. Receives $2.7 Million Development Contract
from General Dynamics for Land Warrior Stryker Batteries and Chargers

    NEWARK, N.Y.--(BUSINESS WIRE)--Feb. 24, 2004--Ultralife Batteries,
Inc. (NASDAQ: ULBI) has received a development contract from General
Dynamics (NYSE: GD) valued at approximately $2.7 million. The contract
is for lithium primary (non-rechargeable) and lithium-ion rechargeable
batteries, as well as vehicle and soldier-based chargers for the Land
Warrior-Stryker Interoperable (LW-SI) program. The development work
has begun and initial deliveries are expected to commence in January
2005.
    John D. Kavazanjian, Ultralife's president and chief executive
officer said, "We appreciate the confidence placed in Ultralife by
General Dynamics for our strong engineering capabilities and advanced
battery technologies. We are very pleased to see the continued strong
growth of the military segment of our business, which will support our
revenue and profitability goals in 2004."
    Joseph N. Barrella, Ultralife's senior vice president of business
development, added, "We worked very hard to win this highly
competitive contract, which will create new market opportunities for
Ultralife for advanced primary and rechargeable smart batteries and
charging systems."
    Land Warrior (LW) is the first integrated Soldier system and
includes everything an Infantry Soldier wears or carries on the
battlefield. Land Warrior combines computers, lasers, geolocation, and
embedded voice and data communications with Soldiers' mission
equipment. The integration of these capabilities enhances the
individual Soldier's close combat tactical awareness, lethality, and
survivability.

    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 certified.

    About General Dynamics

    General Dynamics Decision Systems, part of a newly-integrated
business unit now known as General Dynamics C4 Systems, was selected
to lead the development of the new U.S. Army's Land Warrior system in
February 2003. General Dynamics C4 Systems is a leading integrator of
secure communication and information systems and technology.

    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.

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

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

    CONTACT: Ultralife Batteries, Inc.
             Peter Comerford, 315-332-7100
             pcomerford@ulbi.com
             or
             Investor Relations Contact:
             Lippert/Heilshorn & Associates, Inc.
             Jody Burfening, 212-838-3777
             jburfening@lhai.com
             or
             Media Contact:
             Lippert/Heilshorn & Associates, Inc.
             Chenoa Taitt, 212-201-6635
             ctaitt@lhai.com