Streamlight 22101 18650 Protected Li-Ion Button Top Battery
Amazon.com: 18650 Battery Charger 2-Bay XTAR PB2C USB C XTAR Battery Charger New 18650 Batteries Charger Compatible with Button Flat top Protected 18650 Batteries Max 2A Fast Charging for All 18650's Devices
18650 Protected Button Top battery Panasonic-Orbtronic (FREE Battery Holder) 3400mAh