Fenix ARB-L21-5000U USB-C 21700 Rechargeable Battery (5000mAh)
In Stock ✓ Product Code (SKU): ARB-L21-5000U
- Category: Fenix Accessories
The Fenix ARB-L21-5000U combines the long runtime of a 5000mAh 21700 battery with a built-in USB-C charging port. It is a particularly convenient spare for customers using powerful compatible Fenix lights away from home, because the battery can be recharged directly without a separate battery charger.
Charge Directly By USB-C
A suitable USB-C cable allows the battery to charge independently of the light. The built-in indicator shows red while charging and blue when charging is complete, making it easy to prepare a spare for the next shift, journey or outdoor trip.
High Capacity With Built-In Protection
The 5000mAh capacity supports extended use in compatible high-output lighting. Protection circuitry helps guard against overcharging, over-discharging, short circuits and overheating, while pressure-relief vents add another layer of safety.
Check Compatibility Before Ordering
This battery is designed only for compatible 21700-powered products. It cannot be used in 18650 lights, and its integrated USB-C port can make it unsuitable for some older chargers or tightly sized battery compartments. It is not compatible with products requiring the ARB-L21-6000 specification.
Features & Specifications
| Battery type | Protected button-top 21700 Li-ion battery with integrated USB-C charging. |
|---|---|
| Capacity | 5000mAh. |
| Nominal voltage | 3.6V. |
| Recommended external charging current | 1A. |
| Maximum external charging current | 5A. |
| Charging indicator | Red while charging and blue when fully charged. |
| Expected service life | Up to 500 charging cycles. |
| Dimensions | Approximately 76 × 21.5mm. |
| Weight | Approximately 72.5g. |
What’s Included?
- One Fenix ARB-L21-5000U rechargeable battery.
Please note: A USB-C charging cable is not included.
The rechargeable battery is covered by a 1-year UK warranty.
Right Light supplies genuine Fenix lighting products, batteries and accessories.
The Fenix ARB-L21-5000U combines the long runtime of a 5000mAh 21700 battery with a built-in USB-C charging port. It is a particularly convenient spare for customers using powerful compatible Fenix lights away from home, because the battery can be recharged directly without a separate battery charger.
Charge Directly By USB-C
A suitable USB-C cable allows the battery to charge independently of the light. The built-in indicator shows red while charging and blue when charging is complete, making it easy to prepare a spare for the next shift, journey or outdoor trip.
High Capacity With Built-In Protection
The 5000mAh capacity supports extended use in compatible high-output lighting. Protection circuitry helps guard against overcharging, over-discharging, short circuits and overheating, while pressure-relief vents add another layer of safety.
Check Compatibility Before Ordering
This battery is designed only for compatible 21700-powered products. It cannot be used in 18650 lights, and its integrated USB-C port can make it unsuitable for some older chargers or tightly sized battery compartments. It is not compatible with products requiring the ARB-L21-6000 specification.
Features & Specifications
| Battery type | Protected button-top 21700 Li-ion battery with integrated USB-C charging. |
|---|---|
| Capacity | 5000mAh. |
| Nominal voltage | 3.6V. |
| Recommended external charging current | 1A. |
| Maximum external charging current | 5A. |
| Charging indicator | Red while charging and blue when fully charged. |
| Expected service life | Up to 500 charging cycles. |
| Dimensions | Approximately 76 × 21.5mm. |
| Weight | Approximately 72.5g. |
What’s Included?
- One Fenix ARB-L21-5000U rechargeable battery.
Please note: A USB-C charging cable is not included.
The rechargeable battery is covered by a 1-year UK warranty.
Right Light supplies genuine Fenix lighting products, batteries and accessories.
In Stock
This item is in stock and will be delivered in approximately 1-3 days.
Standard shipping is free on orders of £350 ex. VAT and above (£420 inc. VAT).
Our standard delivery price is £5.32 ex. VAT (at the time of writing). All our deliveries are made by courier to anywhere in the UK (Mainland only).
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