Amazon.com: BGUAD 7.4V 2S LiPo Battery USB Charger Cable 1A Fast Charging with XH-3P Connector for SCX24 RC Car Truck Rock Crawler FPV Drone Airplane Boat Racing Quadcopter Helicopter Airsoft Glider UAV,
LiPo Battery USB Charging Wire
Adafruit Micro Lipo - USB LiIon/LiPoly charger [v2] : ID 1304 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits