Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/MicroUSB Jack [v1] : ID 1904 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: FPVERA 2PCS Drone Batteries 3.7V Lipo Battery USB Charger and 650mAh Lipo Battery with Battery Charger for SYMA X5 Serial UAV Drone Quadcopter Rechargeable Battery : Toys & Games
EREMIT 3.7V 4.2V LiIon und LiPo Charger / Ladegerät 1A mit Anschluss