Product details18650 rechargeable Li-ion battery?
Durable and long lifespan?Capacity:? Voltage: 3.7V18650 protected rechargeable li-ion lithium battery.Suitable for laser pointer, flashlight torch and other electronics products.Safe and environmental friendly..Model: 18650.Battery Type: LionJ BatteryRechargeableFor Camera, Flashlight, standalone fan etc?Battery Capacity: ?18650? 3.7v