Exhibit 99.1

    Ultralife Batteries to Report Second Quarter Results on August 4, 2005;
    Investor Conference Call to be Webcast at Ultralife Batteries' Web Site

     NEWARK, N.Y.--(BUSINESS WIRE)--July 26, 2005--Ultralife Batteries, Inc.
(NASDAQ: ULBI) will report its second quarter 2005 results for the period ended
July 2, 2005 before the market opens on Thursday, August 4, 2005. Ultralife
management will host an investor conference call at 10:00 AM ET also on August
4, 2005. Investors are invited to access a live webcast of the conference call
in the Investor Info - Event Calendar section of the company's website:
http://investor.ultralifebatteries.com. A replay of the webcast will be
available shortly after the call at the same location and will be archived for
90 days.

     About Ultralife Batteries, Inc.

     Ultralife is a global provider of power solutions for diverse applications.
The company develops, manufactures and markets a wide range of non-rechargeable
and rechargeable batteries, charging systems and accessories for use in
military, industrial and consumer portable electronic products. Through its
range of standard products and engineered solutions, Ultralife is able to
provide the next generation of power systems. 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 and Germany, among others.
     Ultralife's headquarters, principal manufacturing and research facilities
are in Newark, New York, near Rochester. Ultralife (UK) Ltd., a second
manufacturing facility, is located in Abingdon, England. Both facilities are
ISO-9001 certified.
     Detailed information on Ultralife is available at the Company's web site,
www.ultralifebatteries.com.


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