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Make a 3 volt battery out of pennies, aluminum foil, cardboard, and vinegar
submitted 2 months ago by magnora7 from youtube.com
[–]Timmy 3 insightful - 2 fun3 insightful - 1 fun4 insightful - 1 fun4 insightful - 2 fun - 2 months ago (0 children)
That might not be practical as a motherboard CMOS battery. I thought for a second that I might save 85 cents. That pile of pennies is just too tall to fit inot a CR 2032 socket, not very well anyway.