HP Forum Archive 21

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Classic battery contacts Message #1 Posted by james summers on 8 Apr 2012, 10:38 a.m. Hi everyone Any tips for the replacement of a broken battery contact in an HP 45? As acquired the battery was very corroded (to the extent that it was quite a difficult job to even get the battery compartment cover off) and the +ve contact was corroded through at the point where it passes through into the body of the calculator. The -ve contact is much better but is still perforated in quite a few places. Would a thinner sheet of half hard copper as suggested by Randy for replacing Spice contacts have the necessary springiness for the job? Cheers James

Re: Classic battery contacts Message #2 Posted by Randy on 8 Apr 2012, 1:33 p.m., in response to message #1 by james summers You'll find the classic contacts to be ~0.006-0.007 inches, same material as the spices. Only difference is the gold plate on the classics, went to bright tin for the spices. Price pressure, no doubt.

Re: Classic battery contacts Message #3 Posted by james summers on 8 Apr 2012, 1:45 p.m., in response to message #2 by Randy Thanks Randy. I'll track some down and get metal bashing! Cheers James

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