3.7v Li-ion 18650 Battery Charger Module - TP4056 / Micro USB Interface | POWER GEN - YouTube
Amazon.com: VICMILE 3.7V 2000mah Li-ion Battery 2Pack with 2 USB Chargers SM-2P Plug 15C RC Recgargeble Battery Compatible with DE45 DE42 Remote Control Cars : Toys & Games
Amazon.com: 18650 Battery Charger,Single-Slot Intelligent Battery Charger for 3.7V Li-ion 18650,26650,21700,18500,18350,16650 Rechargeable Battery (not Including Battery : Electronics
EU Plug Universal 3.7V Li-ion Rechargeable Dual Battery Charger - China Charger and Rehcrageable Charger price | Made-in-China.com
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits