Fenix Rechargeable 21700 3.6v 5000 mAh Li-ion Battery

Model: FF-ARB-L21-5000
Manufacturer: Fenix Flashlight
In stock (Usually Ships in 24-48 Hours)


Fenix ARB-L21-5000 is a rechargeable, 3.6V 21700 Li-ion Battery with a 5000 mAh capacity. The battery comes with built-in Overcharge, Over-discharge and Short Circuit protection along with three sets of overheat protection: pressure relief, microporous, and PTC cathodal block. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion. Ideal for high-intensity flashlights. This is a 5000 mAh high-capacity battery with outstanding performance and a long life with up to 500 charging cycles. Dimensions: Height: 2.99" Diameter: 0.85"

Brand new, direct from Fenix Flashlights.


Battery Type Lithium Ion (Li-Ion)
Voltage 3.6V
Capacity 5000 mAh
Protection Circuit Yes
Rechargeable Yes
Charge Cycles 500 cycles
Weight 2.56 oz.
Country of Manufacture China