AA/AAA Battery Packs

Simple Battery Packs! – AA/AAA

This is a simple, fast-to-print battery pack that uses 22 gauge solid core wire and aluminum foil intended for powering breadboards or small electronics. Once the wires are fastened the material will flex slightly to keep the batteries in place.

The design is minimal and flexible, print multiple and stack them or experiment with different wiring configurations. And if you print too many, you can just fit them together and make a little display 😁

I used PLA since that was all I had, but I suspect PETG might work better.

Assembly

Wrap 22 gauge wire around the outer holes of the model – I recommend pliers to help flatten the wire against the walls of the enclosure. Then roll up and feed tin foil in between the other holes so that they will make contact with the terminals of the batteries. It may help to use a pencil or something similar to help feed the foil in. Optionally tape the outer walls to hide the exposed foil. 

You can wire them in series or parallel with this design.  

It's easiest to load the batteries with the positive tip first.

If you need additional braces for holding batteries, use the included OpenSCAD to increase the size of the battery pack.