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
PKCELL Flat Top 18650 3.7V 3000mAh Rechargeable Li-Ion Battery