Windows Mixed Reality Controller Self-Rechargeable Battery Mod

This mod is for all standard WMR controllers.

Unfortunately, the Samsung Odyssey controllers are currently not supported! If someone makes a copy of the Odyssey controller battery cover, I'd be happy to modify it to work; or alternatively someone can use my blueprint here to make a fully compatible cover from scratch. I'd love to be able to use this on my Odyssey too! :)

Disclaimer
This mod involves using a lithium ion 14500 battery that the Windows Mixed Reality controllers were not nece