Amazon.com: Blomiky 2 Pack 3.7V USB Charger Cable with SM-2P Plug Connector for Mini RC Amphibious Stunt Car Boat Trucks 3.7V Li-ion and Li-Po Battery / 3.7V USB 2 : Toys &
TN471U, 2-bay Universal Battery Charger for Li-ion/NiMH with LCD, Micro USB input
VOLT, Smart USB Li-Polymer Battery Charger - MikroElektronika
XTAR Mini USB Charger for 18650 Batteries - SeaLife Cameras
USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Li-ion Battery Power 2-Slots 18650 Battery Charger with USB – Hiwonder
USB / DC / Solar Lithium Ion/Polymer charger [Rev C] : ID 390 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Redilast Mini USB Li-ion Charger (500mA) - EDC Plus