UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 Current Report
     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

               Date of Report (Date of earliest event reported):

                                 August 11, 2005

                            ULTRALIFE BATTERIES, INC.
                            -------------------------
             (Exact name of registrant as specified in its charter)

                                    Delaware
                                    --------
         (State or other jurisdiction of incorporation or organization)

            0-20852                                      16-1387013
            -------                                      ----------
   (Commission File Number)                 (I.R.S. Employer Identification No.)

                 2000 Technology Parkway, Newark, New York 14513
                 -----------------------------------------------
               (Address of principal executive offices) (Zip Code)

                                 (315) 332-7100
                                 --------------
              (Registrant's telephone number, including area code)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b)

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c))

Item 7.01. Regulation FD Disclosure. Ultralife Batteries, Inc. (the "Company") was notified by the U.S. Department of Defense on August 10 that, following a formal review process, the protest filed on March 14 by a U.S.-based battery assembly company claiming that the BA-5347/U battery contract was improperly awarded, has been denied by the Government. The Company's press release is attached as Exhibit 99.1 to this Form 8-K, and the information set forth therein is furnished under Item 7.01. Item 9.01. Financial Statements, Pro Forma Financials and Exhibits. (a) Financial Statements of Business Acquired. Not applicable. (b) Pro Forma Financial Information. Not applicable. (c) Exhibits. 99.1 Press Release dated August 11, 2005. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ULTRALIFE BATTERIES, INC. Dated: August 11, 2005 By: /s/Peter F. Comerford --------------------------- Peter F. Comerford Vice President of Administration & General Counsel

INDEX TO EXHIBITS (99) Additional Exhibits 99.1 Press Release dated August 11, 2005.

                                                                    Exhibit 99.1

       Ultralife Batteries Notified that BA-5347 Contract Protest Denied;
            Government Reaffirms Company's Win of $15 Million Award


    NEWARK, N.Y.--(BUSINESS WIRE)--Aug. 11, 2005--Ultralife Batteries,
Inc., (NASDAQ: ULBI) was notified by the U.S. Department of Defense on
August 10 that, following a formal review process, the protest filed
on March 14 by a U.S.-based battery assembly company claiming that the
BA-5347/U battery contract was improperly awarded, has been denied by
the Government. Ultralife still expects to complete the qualification
process for this battery before the end of 2005, after which it will
begin production shipments.
    In February 2005 Ultralife announced that the U.S. Defense
Department awarded it the 60 percent portion of the BA-5347 battery
five-year production contract, which could reach a maximum value of
$15 million.
    Ultralife's BA-5347/U is an 11 ampere-hour, 6-volt
non-rechargeable lithium-manganese dioxide battery used to power the
AN/PAS-13 Thermal Weapon Sight (TWS). Used on rifles and other small
arms and versatile enough to be used for other applications such as
surveillance and shoulder-launched missiles, the thermal sight, also
selected for the Army's Land Warrior program, can be used to see in
darkness, adverse weather and through battlefield smoke and dust.

    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 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 facility, is located in Abingdon,
England. Both facilities are ISO-9001 certified.

    This press release contains 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: loss of business with the U.S.
government, 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.
    Ultralife(R) is a registered trademark of Ultralife Batteries,
Inc.



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