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):

                                  June 28, 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))




                                       1

Item 7.01. Regulation FD Disclosure. Ultralife Batteries, Inc. (the "Company") will be presenting on July 12, 2005 at the C.E. Unterberg, Towbin Emerging Growth Opportunities Conference taking place at the Mandarin Oriental hotel in New York City. 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 June 28, 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: June 28, 2005 By: /s/Robert W. Fishback --------------------------- Robert W. Fishback Vice President of Finance & CFO 2

INDEX TO EXHIBITS (99) Additional Exhibits 99.1 Press Release dated June 28, 2005. 3

                                                                    Exhibit 99.1

     Ultralife Batteries To Present At The C.E. Unterberg, Towbin
               Emerging Growth Opportunities Conference

    NEWARK, N.Y.--(BUSINESS WIRE)--June 28, 2005--Ultralife Batteries,
Inc. (NASDAQ: ULBI) will be presenting on July 12, 2005 at the C.E.
Unterberg, Towbin Emerging Growth Opportunities Conference taking
place at the Mandarin Oriental hotel in New York City.
    Ultralife Batteries management is scheduled to make a presentation
at 10:20 AM ET. A live audio webcast and replay of the presentation
will be available in the Investor Info - Event Calendar section of the
company's website: http://investor.ultralifebatteries.com.

    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, 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. Detailed information
about Ultralife is available at: www.ultralifebatteries.com.

    About the C.E. Unterberg, Towbin Emerging Growth Opportunities
Conference.

    The Emerging Growth Opportunities Conference will feature
presentations by and investor meetings with nearly 100 public
companies with market caps under $250 million, and presents an
opportunity for institutional investors, analysts and potential
partners to learn about the innovations and meet the management teams
of companies that may help shape the future. More conference
information can be found at:
http://www.unterberg.com/conferences/microcap05.html.

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

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