Auto Cut off 3.7 volt Lithium-ion Battery Charger Circuit - Hackster.io
Single Slot Li-Ion Battery Charger for 18650 3.7V Rechargeable Battery
3.7v Li-ion 18650 Battery Charger Module - TP4056 / Micro USB Interface | POWER GEN - YouTube
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
3.7V Li-ion Button Battery Rechargeable Batteries / Charger for LED Flashlight – ASA College: Florida
EU 110V 220V Dual 81650 3.7V Battery Charger
Amazon.com: 18650 Rechargeable Battery Charger 3.7V Lithium ion Battery Charger for Li-ion 18650,18500,10440,14500,16340,16650,14650,18350,26650 Battery : Electronics
3.7V 18650 Charger Li-ion Battery USB Independent Charging Portable 18350 16340 14500 Battery Charger Two slots - Walmart.com