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Efest 21700 3700mAh 35A IMR Battery

Efest 21700 3700mah 35A battery vape

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Price: $10.99

Stock Status: In Stock

Product Details

Efest 21700 3700mAh 35A IMR Battery

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!


  • 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

All batteries contain a label decal stating the approximate voltage and capacity. This label is easily removed to reveal the manufacturer print. The label decal is a requirement by the U.S. Government (IATA) which regulates the shipping of lithium ion batteries.


The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. This battery is sold for the use of system integrations with proper protection circuitry or battery packs with a battery management system or PCB (circuit board/module). Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers. Charge only with a smart charger designed for this specific type of lithium ion battery.

  • Misusing or mishandling lithium ion batteries can pose a SERIOUS RISK of personal injury, property damage, or death
  • ONLY use with proper protection circuitry
  • ONLY use within manufacturer specification
  • DO NOT store loose in pocket, purse, etc. – always use a protective case
  • KEEP AWAY from metal objects to prevent short circuiting
  • DO NOT short circuit
  • DO NOT use if wrapper or insulator is damaged or torn
  • DO NOT use if damaged in any way
  • DO NOT overcharge or over-discharge
  • DO NOT modify, disassemble, puncture, cut, crush, or incinerate
  • DO NOT expose to liquids or high temperatures
  • DO NOT solder
  • User must be familiar with handling lithium ion batteries before purchase
  • Usage of batteries is AT YOUR OWN RISK

Local regulations and laws pertaining to the recycling and disposal of lithium ion batteries vary so please consult your local jurisdiction regarding appropriate disposal. Many retail stores offer free recycling of rechargeable batteries.

Average Rating: 5 of 5 Total Reviews: 4 Write a review »

  0 of 0 people found the following review helpful:
July 25, 2018
Reviewer: George Pickett from Bethlehem, PA United States  
Good battery! 18650 is now my go to battery store for my vaping batteries!

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  0 of 0 people found the following review helpful:
Lasts quite a while! May 31, 2018
Reviewer: Dan White from Antioch, IL United States  
I use these in my DNA 75C and although I'm not a chain-vaper I can get about 1.5 days before I need to swap them out. Great battery!

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  0 of 0 people found the following review helpful:
Quick Delivery April 17, 2018
Reviewer: Steve from Modesto, CA United States  
Reasonable price, very quick delivery

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  0 of 0 people found the following review helpful:
Perfect March 1, 2018
Reviewer: Alex from Texas  
Great Cell, Quick Shipping, Thanks!

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