8-K

                                  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):

                                 April 19, 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") has received an order valued at
approximately $1.9 million for its new BA-5390A battery with state-of-charge
indicator from the U.S. Defense Department. Deliveries are expected to be
completed this quarter.

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 April 19, 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:  April 19, 2006.     By:      /s/ Peter F. Comerford
                                     ----------------------------
                                     Vice President of Administration
                                     & General Counsel








                                INDEX TO EXHIBITS

(99)     Additional Exhibits

99.1     Press Release dated April 19, 2006.

EX-99.1

                                                                    Exhibit 99.1


                       Ultralife Batteries Receives $1.9
                         Million BA-5390A Battery Order

    NEWARK, N.Y.--(BUSINESS WIRE)--April 19, 2006--Ultralife
Batteries, Inc. (NASDAQ: ULBI) has received an order valued at
approximately $1.9 million for its new BA-5390A battery with
state-of-charge indicator from the U.S. Defense Department. Deliveries
are expected to be completed this quarter. This is the second order
against the company's Next Gen II, Phase IV five-year battery
contract.
    John D. Kavazanjian, Ultralife's president and chief executive
officer said, "This order reinforces our expectation that we will get
back on track with deliveries this year and provides support for the
continued growth of our share of the U.S. military market."
    In December 2004, Ultralife announced that its U.S. and U.K.
manufacturing 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, an advanced non-rechargeable lithium/manganese
dioxide battery with 50 percent more energy and built-in
state-of-charge indicator, is a superior alternative to the
lithium/sulfur dioxide BA-5590 battery. The state-of-charge indicator,
which uses Light Emitting Diodes that are activated by a push-button,
displays the battery's state of charge in five distinct ranges of
remaining capacity, providing the user with valuable remaining-life
information. Ultralife's BA-5390A is 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 the lithium/sulfur
dioxide-based BA-5590 battery - combined with the new state-of-charge
indicator, offers longer mission time with fewer batteries for
soldiers to carry, and fewer batteries to ship and dispose of, all of
which reduce cost for 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 may contain 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: worsening global economic conditions,
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: Photos of the BA-5390A 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
             Investor Relations:
             Lippert/Heilshorn & Associates, Inc.
             Jody Burfening, 212-838-3777
             jburfening@lhai.com
             or
             Media:
             Chenoa Taitt, 212-201-6635
             ctaitt@lhai.com