Fenix ARB-L21-5000 V2 rechargeable 21700 battery provides the voltage and power needed for extended runtime and higher lumen capacities. The ARB-L21 comes with all the bells and whistles of high-quality Fenix batteries, including protective circuits inside the anode and up to 500 charging cycles.

"Power up your high-lumen flashlights with the Fenix 21700 Rechargeable Battery - 5000U, designed for long-lasting performance and convenience. Featuring a USB Type-C charging port for easy charging without separate equipment, this battery aligns with common cellphone chargers for added ease.

3 days ago · The Fenix ARB-L21-5000-V2 is a 21700-sized button top battery with the button top terminal used by many devices including Fenix flashlights. The 5,000mAh capacity can supply peak runtimes for most electronics and a large energy reserve for high-drain electronics.

The Fenix ARB-L21-5000U is a high capacity 21700 Li-ion rechargeable battery with a USB-C port built in. Also featuring a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating.

The Fenix ARB-L21-5000 V2.0 is a high capacity 21700 Li-ion rechargeable battery with a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. The battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.

Fenix ARB-L21-5000U is a rechargeable battery with a built in USB-C charging port. This battery can also be charged in a compatible charger. All Fenix batteries are manufactured to the highest standards and have multiple safety features such as overcharge and over discharge protections.