Exhibit 99

              Certification pursuant to Section 1350 of Chapter 63
                      of Title 18 of the United States Code

I, John D.  Kavazanjian,  President  and Chief  Executive  Officer of  Ultralife
Batteries,  Inc., hereby certify that (i) the Annual Report on Form 10-K for the
fiscal  year  ended  June 30,  2002  attached  hereto  fully  complies  with the
requirements of Sections 13(a) or 15(d) of the Securities  Exchange Act of 1934,
and (ii) the information contained in the attached Form 10-K fairly presents, in
all material  respects,  the financial  conditions  and results of operations of
Ultralife Batteries, Inc. for the period presented therein.

Dated: September 27, 2002                  /s/ John D. Kavazanjian
                                           -------------------------------------
                                           John D. Kavazanjian
                                           President and Chief Executive Officer

              Certification pursuant to Section 1350 of Chapter 63
                      of Title 18 of the United States Code

I, Robert W. Fishback,  Vice President of Finance and Chief Financial Officer of
Ultralife  Batteries,  Inc.,  hereby  certify that (i) the Annual Report on Form
10-K for the fiscal year ended June 30, 2002 attached hereto fully complies with
the  requirements  of Sections 13(a) or 15(d) of the Securities  Exchange Act of
1934,  and (ii) the  information  contained  in the  attached  Form 10-K  fairly
presents,  in all material  respects,  the financial  conditions  and results of
operations of Ultralife Batteries, Inc. for the period presented therein.

Dated: September 27, 2002                  /s/ Robert W. Fishback
                                           -------------------------------------
                                           Robert W. Fishback
                                           Vice President of Finance and Chief
                                             Financial Officer


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