Keeppower INR21700 5000mAh NM2150 (Black) 2019
Capacity min.: 4750mAh
Capacity typ.: 4900mAh
Nominal voltage: 3.70V
Charge voltage: 4.20+/-0.05V
Standard discharge cut-off voltage: 2.50V
Standard charge current: 2450mA
Charge termination current: 100mA
Max. continuous discharge current: 10A
Max. pulse discharge current: 15A
This is a high capacity cell of the 21700 size from Keeppower.
The two batteries tracks nicely, but the cell is not for high current, it can “only” deliver 10A continuous.
These batteries have high capacity, but this also means lower maximum current.
They are good batteries.
Notes and links
The battery was supplied by Keeppower for 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