IJOY 20700 Battery 3000mah – 40A (5-leg Positive Post)


The most popular 20700 battery on the market!  An excellent battery, but over rated on the wrapper.  This battery has been rated as a 3000mAh 30A on Mooch’s Blog.

  • Brand: iJOY
  • Model: 20700
  • Size: 20700
  • Chemistry: NCR
  • 5-leg Positive Post
  • Nominal Capacity: 3000mAh
  • Nominal Voltage: 3.7V
  • Discharge: 30A Max Continuous, Rated by iJOY as 40A Max Pulse
  • Positive: Flat
  • Protected: NO, UNPROTECTED
  • Rechargeable: Yes
  • Dimensions: 20.4mm x 70.1mm
  • Weight: 57.8g
Mooch’s Notes:
  • At 10A continuous this cell delivered almost 2850mAh. This typical for a high-performance 3000mAh cell so I am rating it at 3000mAh.
  • Its temperature of 78°C at 30A continuous is the average for cells being operated at their rating so I am rating this cell at 30A.
These are high capacity and high discharge current batteries. If mishandled / mistreated, they can cause you SERIOUS INJURY. USE AT YOUR OWN RISK !

Safety Notes:

  • Do NOT short.
  • Do NOT use if battery appears damaged or the wrapper is ripped.
  • Do NOT leave unattended when charging.
  • Do NOT leave unattended immediately AFTER charging.
  • Do NOT carry in your pocket or purse unless they are in a secure non-conductive carry case.
  • They are not toys. Do not let your children or pets play with them.
  • Do NOT recharge with cheap chargers that keep on trickle charging after the normal cycle or that do not follow the Constant Current / Constant Voltage (CC/CV) algorithm properly.

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Out of stock