Fenix 21700 5000mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery with Built-In USB-C Charging Port (ARB-L21-5000U)

Fenix 21700 Battery with USB-C Port

3.6V | 5000mAh Capacity | USB-C Charging Port

The Fenix ARB-L21-5000U 21700 battery stands out from other 21700 batteries with its built-in USB-C charging port. This charging port allows for high-speed charging so you can power up high-drain flashlights in under 4 hours. Plus, with an internal charging port, there is no need to purchase a separate charger! With 3.6 volts of power and a 5000mAh capacity, this 21700 is outfitted with PTC and PCB protections, ensuring extended runtimes and use. The 3 sets of overheat protection make sure the battery retains a stable temperature while powering your preferred flashlights. With these protection systems in place, combined with the USB-C charging port, this 21700 battery is the ideal companion for any 21700-compatible flashlight.