TrustFire 21700 3.7v 4000mAh 40A 14.8Wh Lithium Ion Rechargeable Battery With PCB

Craftys Rod & GunsSKU: 21700R

Sale price$34.99
Only 1 unit left


The TrustFire IMR 21700 Battery is a high drain rechargeable battery designed for high-drain devices.

With a 4000mAh nominal capacity, the TrustFire IMR 21700 battery will provide power, longevity and the flat-top design will align to your device's safety needs.
The TrustFire 21700 Rechargeable Li-ion Battery (4000mAh, 3.7V) equals the power of 2400 AA batteries.

  • Rechargeable Li-Ion Battery
  • No Memory Effect
  • Long Life Battery
  • Rechargeable 1000 Times
  • Low Self Discharge
  • PCB - Inbuilt 'Protection Circuit Board'
  • Charge Time Approximately 5-7 hours dependent on quality of charger
  • 21700 Designation, model
  • 3.7 Volts
  • 4,000 mAh
  • 40A
  • 14.8Wh
  • Flat Top
  • 70.7mm Length
  • 21.5mm Diameter
  • 75 grams


  • Flashlight / Torch
  • Power Bank
  • Battery Pack
  • Electric Scooter
  • Smart Locks
  • E-cigarette

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