Amazon.com: Tokeyla18650 Rechargeable Battery 3500mAh Using The 18650 Flat Top Batteries Charger (Does not Include The 18650 Battery Charger) 18650 Rechargeable Batteries 3.7V Li-ion Batteries 18650 : Electronics
3.7V 18650 batteries 40pcs/lot Li-ion 2600mAh Rechargeable Battery 18650 for the assembly mobile power, notebook,Full capacity - AliExpress