Windows Mixed Reality Controller External Battery Mount

thingiverse

Ever wanted your WMR motion controllers to run for 100 hours of operation before needing recharging? By using a 1-1.2V forward voltage diode, an almost completely reversible controller mod, and a 1S Lipo battery, you can achieve that. The file was designed to fit a discontinued battery, former Hobbyking SKU 9472000033-0. However, with some padding or designing an insert, you can use smaller softcase packs. Don't use exposed softcase lipos on a motion controller; it's just not worth the risk of hitting something inevitably. Hobbyking sells a good option here: https://hobbyking.com/en_us/turnigy-2000mah-1s-1c-lipoly-w-2-pin-jst-ph-connector.html This battery is specifically designed for projects like this, with a low discharge rate, protection circuit, and high capacity. I've included an insert for them. Whatever you do, don't forget the diode; it brings the voltage down to safe levels for the controllers and triggers auto-shutoff when necessary. The whole time, the battery meter on the controller should still work. My 3200mah pack pair has not seen a drop in battery level after about 15 hours of use.