DIY printable USB Powerbank

EDC Gear for Flashlight Carriers USB Power Devices
1

Stumbled across this…thought you folks might be interested

3D Printable case



Specific booster for that case

2

Nice find, someone should put one together and have hkj go over the controller board. good alternative to other diy stuff and the xaiomi

3

Yeah, especially if it can actually maintain the voltage tolerances it claims it can