USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Micro Lipo - USB LiIon/LiPoly charger [v2] : ID 1304 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
SparkFun USB LiPoly Charger - Single Cell - PRT-12711 - SparkFun Electronics
Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack : ID 4410 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
5V Mini USB 1A Lithium BatterieCharging 1s 1-cell 3.7v Lipo Charger Module Board | eBay
Dynamite USB LiPo Charger - Small Addictions RC
Amazon.com: Crazepony 2-in-1 USB Balance Charger Cable 1A with XH-3P Connector Plug for 2S 7.4V LiPo Battery RC Car Boat Rock Crawler FPV Drone Quadcopter : Toys & Games