Heavy Duty Mountable 18650 Battery Holder

After trying to print several 18650 battery holders available, I decided to make one of my own using Autodesk 123D Design that would better suit my needs.

This holder is Heavy Duty when printed at 100% infill, as well as mountable. The terminal connections can be made from machine screws and hex nuts (I used 3mm) and wingnut.

There is enough vertical "wiggle room" to tightly lock down the cell with the screws, but the cell snaps firmly into place within the holder for a nice snug fit.