Out of AA batteries but have AAA's? Country in lockdown or you don't want to risk getting COVID-19 going to the store? Well, I've created a AAA to AA adapter. All you need is a 3d printer, a AAA battery and some tin foil/pop can.

Print instructions

Print the adapter with no supports, 5%+ infill.

Cut Tin foil (or cut piece of a tin can) to the size of the bottom square. Fill bottom square as much as possible to create a connection, folding the tin foil might help. Voila! You have a working AA battery! Enjoy :).

Please give me feedback.
If you are interested in selling this product please contact me.