Fenix ARB-L21-5000U USB 21700 Battery

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Availability: In stock

Li-ion 21700 battery
3.7v nominal
5000mAh capacity


Place your order now and it will leave our warehouse 
Tuesday 22nd September 2020



Please note that due to international postal regulations we are unable to ship Li-ion batteries outside of the Mainland United Kingdom unless they are fitted inside a flashlight, headlamp, bike light or lantern. If this is the case any other non rechargeable batteries which would normally be supplied will be removed.

Fenix ARB-L21-5000U is a Premium Quality High Capacity 21700, 5000mAh USB-C rechargeable Lithium - ion battery specifically designed for high intensity flashlight use and is the perfect companion for Fenix 21700 powered lights.

Fenix ARB-L21-5000 battery features:

High capacity (5000mAh), great reliability and compact design
8A maximum output current
USB-C fast charging port built in to battery
1A recommended charging current. 5A maximum (Charges up to 2A max via USB port)
Protection circuit built into positive terminal for outstanding damage resistance
Triple overheat protection for safety and reliability
Built-in overcharge and over discharge protection
Unique structural design for better impact resistance
Button top positive contact for greater versatility
Dia 21.5mm, Length 76mm

Please note that this item is larger than an 18650 sized battery and will not fit in products designed to take 18650 batteries
USB-C charge cable is not included.


Brand Fenix
Charging Info Recommended charge current 1A, Maximum charge current 5A in external charger. Max 2A charging via USB
Safety Info For further information and safety precautions for Li-ion batteries please visit http://batteryuniversity.com/learn/
Further Info Li-ion batteries should never be left charging unattended under any circumstances. The user must have knowledge of how to charge and discharge Li-ion batteries before using them. Always use a charger that is designed to recharge the particular Li-ion cell that you wish to recharge. Never use a DC adapter to charge Li-ion batteries. We are NOT responsible for any damage that is caused by the misuse of Li-ion batteries. We recommend charging any Li-ion cell on a metal or other non-flammable surface.

Retail packaged Fenix ARB-L21-5000U 21700 Rechargeable Lithium Battery

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