Test/review of Molicel INR18650-P28A 2800mAh (Gray)

Molicel INR18650-P28A 2800mAh (Gray)

Official specifications:

  • Typical capacity 2800mAh

  • Minimum capacity: 2600mAh

  • Nominal voltage: 3.6V

  • Standard charge current: 2.8A

  • Maximum charge current: 6A

  • Discharge cut-off voltage: 2.5V

  • Charge cut-off voltage: 4.2V

  • Maximum discharge current: 35A

  • Internal resistance: 20mOhm

  • Internal resistance DC: 20mOhm (10A/1s)

  • Ambient temperature: Charge: 0°C ~ 60°C, Discharge: –40°C ~ 60°C

  • Typical cycle life: 400 cycles to 80% at 20A discharge.

This is a high current 18650 cell with fairly good capacity.

The two cells tracks very nicely, at 30A the battery got hot and I stopped the test before the battery was empty.


A good high current cell and not that different from the P26A

Notes and links

The batteries was supplied by a reader review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

Welcome back, Henrik. Thanks for yet another of your profound battery tests.

Thanks for this review.

Thanks for this review, and all the others.

Thanks for taking the time to review the P28A… and welcome back!

Thank you for this review

I hope you had a nice break but it’s good to see you back! Thank you for testing this! We appreciate all your work.


Thanks HKJ