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HP 41C Battery Contacts (Cleaning?)
09-24-2014, 12:33 PM (This post was last modified: 09-24-2014 12:35 PM by Eddie W. Shore.)
Post: #6
RE: HP 41C Battery Contacts (Cleaning?)
The stuff on the contacts is stubborn! Between the white vinegar and the card it seems little has come off. (half an hour)

I am going to rub some alcohol (isopropyl) and let it dry during the day.
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RE: HP 41C Battery Contacts (Cleaning?) - Eddie W. Shore - 09-24-2014 12:33 PM



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