Brand New and High quality.
18650 rechargeable li-ion lithium battery.
Suitable for laser pointer， flashlight torch and other electronics products.
Safe and environmental friendly. 
Rechargeable Times: Up to 500 times.
Size: 66mm x 18mm (Diameter).
Model: 18650.
Capacity: 4000mAh.
Voltage: 3.7V

Packet content:
2x 18650 4000mAh Rechargeable Li-ion Battery