So you’ve run out of batteries and you’d rather not go to the store to buy a new pack (those things can be expensive). If you’ve got several spare pennies lying around your house, you’re in luck — you can use them to make a battery with a few common household items. This illustrated instruction manual from Wonder How To shows you the steps to making a working battery powered by pennies. If you’re not in need of a battery at the moment, this can also make for a cool science experiment for kids! (With plenty of adult supervision, of course. Stay safe!)
Featured photo credit: wealth of pennies/Reza via flic.kr
