Fenix 21700 Boosted Runtime Rechargeable Battery, 4000mAh - F FX-ARBL214000P
SKU: 87524553238

Fenix 21700 Boosted Runtime Rechargeable Battery, 4000mAh - F FX-ARBL214000P

Sale price$23.36 Regular price$25.95
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Description

Fenix 21700 Boosted Runtime Rechargeable Battery, 4000mAh - F FX-ARBL214000PFenix 21700 Boosted Runtime Rechargeable Battery, 4000mAh F FX ARBL214000P The all new Fenix rechargeable 21700 battery is designed for large current output. The maximum current for the ARB L21 4000P is 18A, with a continuous output current of 10A. Why is this necessary, The higher current allows the 21700 battery longer runtimes in flashlights. As with all Fenix rechargeable batteries, the 21700 4000mAH has three sets of overheat protection,

Fenix 21700 Boosted Runtime Rechargeable Battery, 4000mAh - F FX-ARBL214000P

The all-new Fenix rechargeable 21700 battery is designed for large current output. The maximum current for the ARB-L21-4000P is 18A, with a continuous output current of 10A. Why is this necessary, The higher current allows the 21700 battery longer runtimes in flashlights. As with all Fenix rechargeable batteries, the 21700 4000mAH has three sets of overheat protection, including pressure relief, microporous, and PTC cathodal block. The pressure relief vents all gas to be expelled, this prevents secondary hazards.

THIS BATTERY IS NOT AN 18650, AND IT IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS OR OLDER STYLE CHARGERS.

Specifications:

  • Size: 21700
  • Capacity: 4000mAh
  • Voltage: 3.6V
  • Charging Current: 1A Recommended, 4A Maximum
  • Max Output Current: 18A (Less than 3 Minutes)
  • Max Continuous Current: 10A
  • Overall Weight: 0.15 lbs
  • Dimension: 2.99 in Height x 0.85 in Diameter
  • Warranty: 12 Months Free warranty from date of purchase
  • Compatible with Lights: LR35R, PD36R, PD40R, TK22v2, TK22UE, and E35v3
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87524553238

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Kristin Lane
Cuba, US
★★★★★ 3
Runs Small
Size: Medium, Color: Pink
My daughter usually wears a 7-8. Size 8 pants have to have the elastic pulled tight. I got the size M (8 years). It was way too tight on her. Had to send it back. We did like the way it looked and felt, but just too small.
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Reviewed in the United States on February 19, 2026
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soheila
Lexington, US
★★★★★ 1
too small
Size: Large, Color: Pink
I returned this dress; it was too small, and they didn't give me back my money.
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Reviewed in the United States on March 2, 2026
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Elizabeth H.
Chelsea, US
★★★★★ 2
Runs very small
Size: X-Large, Color: Navy
Good quality but runs very small, does not even come close to fitting
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Reviewed in the United States on May 9, 2026
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megan
Grantham, US
★★★★★ 5
Great Purchase!
Size: X-Small, Color: Navy
Love this! Fit perfectly and can tumble in it with full coverage, so cute too!
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Reviewed in the United States on March 16, 2026
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BiblioLuvR
New York, US
★★★★★ 5
Very compressive
Size: Large, Color: Pink
Super compressive for girls clothes. Great dress though, my daughter didn't love the feel of the super tight athletic wear feel though.
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Reviewed in the United States on April 29, 2026

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