Fenix ARB-L21-5000U USB rechargeable 21700 Li-ion battery

Fenix ARB-L21-5000U USB rechargeable 21700 Li-ion battery

Name: Fenix ARB-L21-5000U USB rechargeable 21700 Li-ion battery
Brand: Fenix
SKU: Fenix ARB-L21-5000U
Price: 44.95 AUD
Availability: InStock
Rating: 5 (2 reviews)

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Fenix ARB-L21-5000U USB rechargeable 21700 Li-ion battery

$49.95

$44.95

Description
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Reviews

Description

72.5g : The Fenix ARB-L21-5000U is high capacity 21700 Li-ion button top USB rechargeable battery. Multiple protection and steel shell riveting technology ensuring good performance and safety. It has a capacity of 5000mAh with a nominal voltage of 3.6V. Designed for high drain devices like torches, flashlights and high powered electronics.

Specifications:

Type: Button Top
Capacity: 5000mAh
Charging Current: USB Port 2A / Charger 1A Recommended, 5A Maximum
Maximum Output Current: 8A
Charging Cycles : 500
Wh Rating: 18Wh
Nominal Voltage: 3.6V
Dimensions:
- Length - 76 mm
- Body Diameter - 21.5 mm
Weight: 72.5 g

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Reviews

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5
21700 5000U

Posted by Steve on 17th Aug 2026

Battery charged and fitted my Speras TH6 perfectly and works well and having its own USB-C charging port means i dont have to have a dedicated charger
5
To big for my torch

Posted by Steve on 3rd Nov 2020

This is a great looking battery but did not fit my 21700 battery torch it was a bit to long. It was easy to charge, I was dissapointed it did not fit my torch.