Efest IMR 21700


  • Model: IMR21700-3700
  • Size: 21700
  • Style: Flat Top
  • Chemistry: IMR
  • Nominal Capacity: 3700mAh
  • Continuous Discharge Rating: 30A
  • Pulse Discharge Rating: 35A (As rated by Efest)
  • Nominal Voltage: 3.7v
  • Protected: No
  • Rechargeable: Yes
  • Approximate Dimensions: 21.5mm x 70.4mm
  • Approximate Weight: 73.12g

Out of stock

SKU: 210000003758 Categories: , Tag:


High draining and long-lasting, the Efest IMR 21700 Li-Ion Flat To Battery is the perfect power source for your personal vaporizer! This impressive cell features an incredibly stable Lithium Manganese Oxide chemistry, which is able to provide 35 Amps of current, more than enough to power your electronic cigarette or personal vaporizer. The IMR 21700 has a sizable 3700 mAh capacity, giving you plenty of usage before needing to recharge. The unprotected cell is compatible with rapid chargers, bringing it back to full power in no time! Please note that due to their inherent safety, IMR cells don’t have a protection circuit built in. They should never be discharged below 2.5 volts or cycle life/performance will be reduced. Maximum charge voltage is 4.25 volts. Please check your cells with a volt meter during initial charging to be sure that your charger cuts off below this level, or cycle life will be reduced.


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