Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

      We hereby consent to the  incorporation  by reference in the  Registration
      Statements on Form S-3 (Nos. 333-110426, 333-67808 and 333-90984) and Form
      S-8 (Nos.  333-31930 and  333-60984) of Ultralife  Batteries,  Inc. of our
      report dated February 4, 2004,  except for the first paragraph of Note 13,
      as to  which  the  date  is  March  1,  2004,  relating  to the  financial
      statements as of December 31, 2003 and 2002, and June 30, 2002 and for the
      year ended  December 31, 2003, the six months ended December 31, 2002, and
      the year ended June 30, 2002,  which  appears in this Report on Form 10-K.
      We also  consent to the  incorporation  by  reference  of our report dated
      February 4, 2003,  except for the first  paragraph of Note 13, as to which
      the date is March 1, 2004, relating to the financial statement schedule as
      of December  31,  2003 and 2002,  and June 30, 2002 and for the year ended
      December 31, 2003,  the six months ended  December 31, 2002,  and the year
      ended June 30, 2002, which appears in this Report on Form 10-K.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Rochester, New York
March 11, 2004


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