Ryobi Battery Holder

I made this so I could store my Ryobi OnePlus Batteries on the wall. Use a 2" hole saw to drill a piece of wood (I'll be using a 2x4) and glue this into the hole. It is almost 2" deep, so it will stick out if using a 2x4, but that doesn't bother me. I closed the back, because I figure it might help keep the contacts clean.
Make sure to flip it so the hole is up before saving Gcode!