NEW Protected 4pcs Gray UltraFire 14500 900mAh 3.6V Li-ion Rechargeable Batteries UltraFire Protected LC 14500 Rechargeable Lithium Battery-Gray(4-battery pack) Voltage:3.6v, Capacity:650mAh it can recharge for much times and is contribute to protect enviroment. Rechargeable battery with PCB protected Size: Length:5cm Diameter:1.5cm