My Cart

WARNING:These products contain nicotine. Nicotine is an addictive chemical.
Free shipping on orders over $35

Efest 21700 3700 mAh 35A Battery

By Efest

$10.99 (Sold Out)

Efest is known to be a reliable source of power for your vape mods. This larger battery was designed for mods that utilizes the 21700 battery and offers more power and greater capacity.

Price is shown for one battery.


Note: These batteries are slightly larger than the 18650 batteries and are only compatible with 21700 devices.


  • Size: 21700
  • 3700 mAh capacity
  • 3.7 V Nominal Capacity
  • 4.2 V Maximum Voltage
  • Flat Top
  • 21.5 mm by 70.4 mm
  • 30 A Maximum Continuous
  • 35 A Maximum Pulse


  • Battery has potential to catch fire if mistreated.
  • Do not expose to water or fire.
  • Do not short circuit.
  • Keep out of reach of children.
  • Dispose if protective wrap is torn or shows any signs of wear.
  • Do not carry batteries in pocket or purse containing metal objects.
  • Transport batteries in proper battery case.

Recently Viewed Items

Join our Mailing List

Sign up to receive our daily email and get 50% off your first purchase.

My Cart

Subtotal: $0.00

Your cart is currently empty.

Register to start earning points! Close
// if you want to delete the mobile stick bar here delete from 500 to 511 Back to the top