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, 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))

Item 7.01. Regulation FD Disclosure Ultralife Batteries, Inc. (the "Company") will be presenting on July 11, 2006 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 issued in connection with the announcement of the conference 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, 2006.

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, 2006. By: /s/ Peter F. Comerford ---------------------------- Vice President of Administration & General Counsel 2

INDEX TO EXHIBITS (99) Additional Exhibits 99.1 Press Release dated June 28, 2006. 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, 2006--Ultralife Batteries,
Inc. (NASDAQ:ULBI) will be presenting on July 11, 2006 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 1:00 PM 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 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, Australia and New Zealand, 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: 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 125 companies representing
five focus sectors: digital media, software, communications equipment,
modern defense and healthcare. The conference is designed to
facilitate maximum meeting opportunities between investors and this
select group of emerging growth companies. More conference information
can be found at: http://www.unterberg.com.

    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, 212-838-3777
             ctaitt@lhai.com