Majoxin 4PCS 18650 Rechargeable Battery 3.7V 2200mAh Li-ion Battery Large Capacity Button Top flashlights for LED Torch Flashlight Headlamp Electronic Devices NOT AA AA Lithium Battery
Amazon.com: 18650 Battery Charger Universal Smart 18650 Charger with LED Indicator for 3.7V Lithium ion Battery 18650 21700 26650 18500 16650 14500 Rechargeable Batteries (4 Bay) : Electronics
Amazon.com: 18650 Battery Charger 2 Slot, and Tactical Flashlight, Super Bright Waterproof Handheld Flashlights for Outdoor, Emergency, Camping(Use 9900mAh High Capacity Battery) : Sports & Outdoors