EXHIBIT 31.1

                     Rule 13a-14(a)/15d-14(a) Certification

      I, Christopher J. Dyball, certify that:

      1.  I have reviewed this Amendment No.1 on Form 10-K/A to the Annual
Report on Form 10-K for the fiscal year ended March 31, 2003 (this "Amendment")
of Drexler Technology Corporation, a Delaware corporation ("registrant");

      2.  Based on my knowledge, this Amendment does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this Amendment;
and

      3.  Based on my knowledge, the financial statements, and other financial
information included in this Amendment, fairly present in all material respects
the financial condition, results of operations and cash flows of the registrant
as of, and for, the periods presented in this Amendment.

Dated: September 29, 2003


By:   /s/ Christopher J. Dyball
      --------------------------------
      Christopher J. Dyball
      Co-Chief Executive Officer
      (Co-Principal Executive Officer)

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