Avatar 21700 4000mah Battery

In Stock

Order before 3pm for same day dispatch.

The Avatar 21700 4000mAh battery is a high powered replaceable battery perfect for any mod that requires a 21700 battery.


  • Size: 21700
  • Brand: Avatar
  • Capacity: 4000mAh
  • Nominal Voltage: 3.7 Volts
  • Discharge: Peak Discharging Current: 60A. 
    Continuous Discharging current: 30A
  • Diameter: 21.77mm
  • Height: 70.9mm
  • Overcharge and over-discharge protection

Store your batteries safely using a battery box.

Battery Safety, Storage & Handling

  • Never leave batteries charging unattended (especially overnight)
  • When not in use store batteries safely
  • Dispose of used batteries only at approved locations
  • Ensure that the charger is suitable for the batteries (if in doubt - ask your supplier)
  • Always store batteries in a case when not in use
  • Store batteries away from metal objects (keys, coins etc)
  • Never carry loose batteries in a pocket or bag
  • If the batteries protective film is damaged - stop using immediately
  • Never force a battery into a device - if the fit is too tight - the battery is not suitable
  • Never completely discharge batteries. (The cut off for most cells is 2.8v or 2.5v)
  • Do not expose to extreme heat or cold, or sudden fluctuations between the two.
  • Check your wraps and insulators regularly. Replace worn or damaged wraps before continuing use.

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