FENIX ARB-L21-5000U At-A-Glance
- Fenix 21700 5000mAh high capacity battery with outstanding performance
- Suitable for high-intensity LED flashlights like the Fenix PD36R
- Multiple protections with internal and external safety features
- Built-in overcharge and over-discharge protection to increase battery lifespan
- Designed to last over 500 charge cycles
- 12 month warranty period from purchase date
Included in the Box
- Fenix ARB-L21-5000U 21700 Rechargeable Battery
- *USB-C Cable Not Included
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.
TECHNICAL SPECIFICATIONS
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Capacity
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5000 mAh
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Voltage
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3.6 V
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Charging Current (Recommended)
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1 A
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Charging Current (Maximum)
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5 A
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Dimensions
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L-2.99"xW-0.85"xH-0.85"
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Weight
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2.56oz
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21700 Battery Compatibility
- This is a button top battery designed for flashlights that accept standard 21700 batteries.
- It does NOT work in any non-flashlight device.
- It does NOT work in any flashlights that require a custom battery.
- It does NOT work in any electronics that only accept flat top batteries.
- It can be charged in a lithium-ion charger such as Fenix ARE-A2, Fenix ARE-A4.
Battery order 
