Two UltraFire 3.7v 18650 rechargeable Lithium-Ion batteries provides twice the power, more than you will ever need to get peak performance from your LED flashlights. With 6000mah of capacity, these UltraFire batteries deliver power longer than any other battery of this type, they will not let you down!
- 1000 rechargeable cycles with no memory effect
- Short circuit and over current protection
- 10 year life
- Made with Japanese power cells