AA to C Battery Adapter

thingiverse

Really getting tired of the price of the bigger batteries, i.e. C, D, and 9 volt. So, I decided to make a very simple battery adapter that anyone can use. All ya gotta do is drop a fresh, or not so fresh, AA battery into the center of this adapter and then drop the whole shebang into whatever you want to power with a C battery. Most AA batteries should fit slightly tight nearing the bottom of the adapter, that is so they do not fall out as you try to place the new C battery into your device. There's also a handy-dandy signage on the side of the adapter that states 'AA to C Adapter' just in case you forget what the thing is used for.