18650 3.7 Volt Lithium Ion Rechargeable Battery (2200 mAh)
Fenix 18650 Battery Rechargeable - Fenix Lighting
10pcs High Capacity 1200mah 18650 Li ion Lithium Battery Blue 3.7v Rechargeable Lithium Bateria Toy Headlamp|lithium battery|li-ion 18650li-ion battery - AliExpress
4pcs Batteries LED 18650 1200mah Li Ion Battery 3.7v Lithium Rechargeable Battery Blue High Capacity For Flashlight|li-ion battery|rechargeable batterybattery 3.7v - AliExpress