12 Volt Battery Pack/Holder [A23 size Battery)

I wanted a convenient way to put a 12V A23 size battery in a container where the wires were tightly connected.

Insert the battery into the main cylinder, and put a little aluminum foil on both sides to maximize conduction. Then, insert the positive and negative wires into the corresponding holes and you are done!

Note: the picture shows more than just the cylindrical battery pack. It shows it being used inside the LED setup from Master Chief's helmet from Halo 4 (http://www.thingiverse.com