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):

                                January 12, 2006

                            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))



                                        1

Item 7.01. Regulation FD Disclosure. Ultralife Batteries, Inc. (the "Company") has been notified by the U.S. Department of Defense that its new BA-5390A lithium/manganese dioxide battery with a state-of-charge indicator (SOCI) has successfully completed First Article testing. The battery is now available. 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 January 12, 2006. 2

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: January 12, 2006 By: /s/ Peter F. Comerford -------------------------------- Peter F. Comerford Vice President of Administration & General Counsel 3

                                                                    Exhibit 99.1


                   U.S. Military Qualifies Ultralife BA-5390A
                     Battery with State-of-Charge Indicator


     NEWARK, N.Y.--(BUSINESS WIRE)--Jan. 12, 2006--Ultralife Batteries, Inc.
(NASDAQ: ULBI) has been notified by the U.S. Department of Defense that its new
BA-5390A lithium/manganese dioxide battery with a state-of-charge indicator
(SOCI) has successfully completed First Article testing. The battery is now
available.
     "Reaching this milestone is a significant achievement under our Next Gen
II, Phase IV contract," said John D. Kavazanjian, president and chief executive
officer. "Recent field usage numbers indicate that our existing BA-5390 battery
has been steadily gaining market share through increased demand for a
longer-lasting and safer technology, and our new BA-5390A battery with the SOCI
feature will provide soldiers with the most advanced lithium battery technology
available. We will continue to promote our manganese dioxide technology as the
replacement for the outdated sulfur dioxide system."
     In December 2004, Ultralife announced that its U.S. and U.K. operations
were awarded the 60 percent and the 40 percent shares, respectively, of the Next
Gen II, Phase IV five-year battery production contracts, by the U.S. Defense
Department. The combined contracts could reach a maximum value of $286 million,
a majority of which is related to the BA-5390A battery.
     Next Gen II is the U.S. Military's five-year battery procurement strategy.
The Phase IV production contracts were awarded to Ultralife's U.S. and U.K.
operations to provide five types of non-rechargeable lithium/manganese dioxide
batteries. The five battery types -- BA-5390A, BA-5312, BA-5398, BA-5388 and
BA-5357 -- comprise the Rectangular Lithium/Manganese Dioxide Battery Group.
     The BA-5390A is a lithium/manganese dioxide non-rechargeable battery with
SOCI, and with 50 percent more energy, is a superior alternative to the
lithium/sulfur dioxide BA-5590 battery. The SOCI, which uses Light Emitting
Diodes that are activated by a push-button, displays the battery's state of
charge in five distinct ranges from 90% to 10% of remaining capacity, providing
the user with valuable remaining-life information. The BA-5390 and its
replacement, the BA-5390A, are widely used to power more than 50 military
applications, such as the AN/PRC-119 SINCGARS (Single Channel Ground and
Airborne Radio System) and the Javelin Medium Anti-Tank Missile Command Launch
Unit. More energy in each battery -- in some applications providing twice the
life of a BA-5590 battery -- combined with the new SOCI, offers longer mission
time with fewer batteries for soldiers to carry, and fewer batteries to ship and
dispose of, all of which reduce cost to the military.

     About Ultralife Batteries, Inc.

     Ultralife is a global provider of high-energy power systems 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 portfolio of standard products and engineered solutions, Ultralife
is at the forefront of providing 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, Germany
and Australia, among others.
     Ultralife's headquarters, principal manufacturing and research facilities
are in Newark, New York, near Rochester. Ultralife Batteries (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.

     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.

     Note to editors: A photo of the BA-5390A battery, and other Ultralife
military batteries, are available at: http://www.ultralifebatteries.com/milphoto

     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.
              Jody Burfening, 212-838-3777
              jburfening@lhai.com
              or
              Chenoa Taitt, 212-201-6635
              ctaitt@lhai.com