Question about HP 12c Calculator

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HP 12C cuts out when the battery door is the whole way on

When the battery door is not the whole way pushed in (held on by a piece of tape), it works fine. When I push the battery door on the whole way (and the battery pushes down inside), it won't work.

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This happened to me too. I took out the battery and found the contacts had been squished down too much. (You should see three pointing towards the center.) I used my fingernail to pry them back out a bit, played around with squishing the battery in and checking it, and after a few times, it worked atain.

Posted on Apr 16, 2009

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Found on-line at other sites.


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