Thingiverse
AA to C Battery Adapter
by WhoDoctorK9
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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.
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.
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