Source Selling best GEB 3.7V 18500 1200mah 3.7V rechargeable Li-ion Battery Lipo Battery for LED on m.alibaba.com
Amazon.com: JESSPOW 18500 Rechargeable Batteries, IMR 18500 Rechargeable Li-ion Battery 1600mAh 3.7V [ for Flashlight, Solar Garden Light ] with Button Top (4Pack) : Health & Household
Universal Battery Charger Eastshine S2 Lcd Display Speedy Smart Charger For Rechargeable Batteries Ni Mh Ni Cd Aa Aaa Li Ion Lifepo4 Imr 10440 14500 16340 18650 Rcr123 26650 18500 17670 20700 21700 Car Adapter - Electronics - Temu Belgium