Fenix ARB-L21-4000P 21700 High Current Battery Yellow
£27.95
Product Code: ARB-L21-4000P
Fenix ARB-L21-4000P 21700 High Current Battery Yellow
£27.95
Product Code: ARB-L21-4000P
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. The Fenix ARB-L21-4000P 21700 battery is designed to deliver in high current applications such as the Fenix LR35R search and rescue torch. Capable of a continuous current drain of up to 10A and a peak maximum of 18A, this rechargeable Li-ion battery offers high current delivery combined with high capacity making it longer lasting than 18650 batteries in similar environments. As with most Fenix batteries the ARB-L21-4000P features overcharge, over-discharge, overheat and short circuit protection as standard combined with a steel shell to protect against impact. Please note that this item is larger than an 18650 sized battery and will not fit in products designed to take 18650 cells.
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The Fenix ARB-L21-4000P 21700 High Current Battery is engineered for users who rely on high-output electronic equipment during extended fishing sessions and outdoor use. Built as a high-drain lithium-ion cell, it is especially well suited for powering advanced fishing head torches, powerful LED bivvy lights, lanterns, and other energy-intensive angling accessories where consistent brightness and reliability are essential.
With its high current discharge capability, this battery maintains stable performance even under heavy load, making it ideal for night fishing situations where dependable lighting is critical. The 21700 format provides increased capacity compared to smaller cells, allowing longer run times for demanding devices used on the bank. Designed with integrated safety and protection features, it helps safeguard against over-discharge and overheating during repeated charging cycles.
Its robust construction and rechargeable design make it a practical long-term power solution for anglers who depend on high-performance lighting and electronic gear throughout extended fishing trips, overnight sessions, and challenging outdoor conditions.
- High-drain 21700 lithium-ion battery designed for powerful fishing head torches, lanterns, and high-output LED lighting systems
- High current discharge capability supports consistent performance in demanding outdoor and night fishing conditions
- Built-in protection features help maintain stable and safe power delivery during repeated charging and use
Delivery and Returns
Delivery
Royal Mail Tracked 48 (2-4 working days) - £2.50*
Royal Mail Tracked 24 (1-2 working days) - £4.50*
Next Working Day Delivery up to 1Kg - £9.99**
Next Working Day Delivery over 1Kg - £14.99***
FREE Delivery on orders over £150****
Express AM RFD Transfer - £30.00*****
* UK mainland only excluding large and long items such as fishing rods.
** Orders placed before 1500 Hrs on weekdays excluding bank holidays.
*** Orders placed before 1300 Hrs on weekdays excluding bank holidays.
****Exclusions apply such as RFD transfers.
*****Please provide details of which RFD you would like the order to be shipped to when ordering.
Returns
If it is deemed necessary to return an item for exchange or refund, please note the following:
Goods returned must be in original packaging, with labels still attached.
Notification of intention to return must be provided within 14 days of receipt.
Goods must be delivered to us within 14 days of return notification.
Goods must have accompanying copy receipt for return.
Goods returned unwanted are subject to a minimum postage charge of £3.50 or the actual delivery costs incurred to us, whichever is the greater.
Returned goods must be in new condition, i.e. unused and unmarked with labels attached.
Costs incurred in returning items are your responsibility.
The Fenix ARB-L21-4000P 21700 High Current Battery is engineered for users who rely on high-output electronic equipment during extended fishing sessions and outdoor use. Built as a high-drain lithium-ion cell, it is especially well suited for powering advanced fishing head torches, powerful LED bivvy lights, lanterns, and other energy-intensive angling accessories where consistent brightness and reliability are essential.
With its high current discharge capability, this battery maintains stable performance even under heavy load, making it ideal for night fishing situations where dependable lighting is critical. The 21700 format provides increased capacity compared to smaller cells, allowing longer run times for demanding devices used on the bank. Designed with integrated safety and protection features, it helps safeguard against over-discharge and overheating during repeated charging cycles.
Its robust construction and rechargeable design make it a practical long-term power solution for anglers who depend on high-performance lighting and electronic gear throughout extended fishing trips, overnight sessions, and challenging outdoor conditions.
- High-drain 21700 lithium-ion battery designed for powerful fishing head torches, lanterns, and high-output LED lighting systems
- High current discharge capability supports consistent performance in demanding outdoor and night fishing conditions
- Built-in protection features help maintain stable and safe power delivery during repeated charging and use
Delivery
Royal Mail Tracked 48 (2-4 working days) - £2.50*
Royal Mail Tracked 24 (1-2 working days) - £4.50*
Next Working Day Delivery up to 1Kg - £9.99**
Next Working Day Delivery over 1Kg - £14.99***
FREE Delivery on orders over £150****
Express AM RFD Transfer - £30.00*****
* UK mainland only excluding large and long items such as fishing rods.
** Orders placed before 1500 Hrs on weekdays excluding bank holidays.
*** Orders placed before 1300 Hrs on weekdays excluding bank holidays.
****Exclusions apply such as RFD transfers.
*****Please provide details of which RFD you would like the order to be shipped to when ordering.
Returns
If it is deemed necessary to return an item for exchange or refund, please note the following:
Goods returned must be in original packaging, with labels still attached.
Notification of intention to return must be provided within 14 days of receipt.
Goods must be delivered to us within 14 days of return notification.
Goods must have accompanying copy receipt for return.
Goods returned unwanted are subject to a minimum postage charge of £3.50 or the actual delivery costs incurred to us, whichever is the greater.
Returned goods must be in new condition, i.e. unused and unmarked with labels attached.
Costs incurred in returning items are your responsibility.
