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Fogstar 21700 4000mAh battery
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Fogstar

Fogstar 21700 Battery 4000mAh

£7.99
Fogstar FS4000 is a flat-top, unprotected 21700 lithium-ion cell with a 4000mAh capacity and a manufacturer-rated maximum discharge of 40A.Battery safety: Use only in compatible devices and chargers. Never use a cell with damaged wrapping, carry it loose,...

Sold out

Order by 2pm on weekdays for usual same-day dispatch.Subject to order checks and operational capacity; not guaranteed. Orders are usually dispatched within 24 hours. Free eligible UK delivery over £30. View delivery information.
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Product information

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Fogstar FS4000 is a flat-top, unprotected 21700 lithium-ion cell with a 4000mAh capacity and a manufacturer-rated maximum discharge of 40A.

Battery safety: Use only in compatible devices and chargers. Never use a cell with damaged wrapping, carry it loose, or exceed device and cell limits.

Description

Fogstar FS4000 is a flat-top, unprotected 21700 lithium-ion cell with a 4000mAh capacity and a manufacturer-rated maximum discharge of 40A.

Battery safety: Use only in compatible devices and chargers. Never use a cell with damaged wrapping, carry it loose, or exceed device and cell limits.

Key features
  • 21700 cell format
  • 4000mAh capacity
  • 40A maximum discharge rating
  • 3.6V nominal voltage
  • 4.2V maximum voltage
  • Flat-top, unprotected cell
What’s in the box
  • 1 × Fogstar FS4000 21700 battery
Delivery information

Orders placed by 2pm on weekdays are usually dispatched the same day, subject to order checks and operational capacity; this is not guaranteed. Orders are otherwise usually dispatched within 24 hours. See our UK and international delivery information for services, destination restrictions and current estimates.

Returns and support

If something is not right, contact us before returning it. We will explain the relevant options and help with faults or setup questions.

Age restriction

Age-restricted products are for adults aged 18 and over. OneID may be used to verify your age before checkout is completed. See our delivery and age-check information for more detail.