The all-new Acebeam 21700 rechargeable Li-ion battery provides the voltage and power needed for long runtime and high lumen capacities. This high-quality battery with protective circuits inside the anode and up to 500 charging cycles. Keeping an extra 21700 is a great back-up battery to have on hand, as more electronic products and Acebeam flashlights will utilize this battery IMR21700NP-500A.

Features:
500 Recharge Cycles
5000 mAh Capacity
Lithium-ion rechargeable
Multiple Layers of protection
Pressure Relief Valve Protection
Separate Microporous Protection
Overcharge, Over-discharge, Short Circuit, and Overheat Protection
Continuous Discharge Current 15A MAX
Steel Shell Riveting
3.6V Charging Current: 2A recommended, 3A Maximum