Fenix ARB-L21-5000U 5000mAh USB C Rechargeable 21700 Battery
Product details
| Management number | 235346083 | Release Date | 2026/07/02 | List Price | US$10.78 | Model Number | 235346083 | ||
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Fenix 21700 5000mAh Battery
The Fenix ARB-L21-5000U is a high-performance, li-ion battery designed to power high drain devices that support 21700-size batteries like your favorite flashlights, lanterns, and more. We love to pair it with Fenix PD36R, TK22 V2.0, or TK22UE.
Direct USB-C Rechargeable Battery
Simply charge the Fenix 21700 battery using the built-in USB-C charging port or using another compatible battery charger. With built-in overcharging and over-discharge protection, the ARB-L21-5000U is designed to last over 500 charge cycles. The cathode, (positive button top) features a battery charging indicator: red for charging, green for fully charged. A 12 month free warranty period means you will never have to worry about this battery leaving you in the dark.
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