Keeppower IMR18350 (Black)

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Official specifications:
Keeppower%20IMR18350%20(Black)-info

Keeppower usual has good cells under their wrapper, do this high current 18350 cells I bought from banggood live up to that?

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Keeppower%20IMR18350%20(Black)-Capacity

Up to 7A the curves has good tracking, the 10A is a bit compromised and 15A is way to high. This looks very reasonable for a 8A cell.

Keeppower%20IMR18350%20(Black)-Temp-7.0

A 15C temperature raise, this is perfectly acceptable.

Keeppower%20IMR18350%20(Black)-Temp-10.0

The 20C raise is not a proble either.

Keeppower%20IMR18350%20(Black)-Temp-15.0

At 15A the cell collapses too fast to get hot (But it I had keep the load on it likely have given problems).

Keeppower%20IMR18350%20(Black)-CapacityTimeHours

Keeppower%20IMR18350%20(Black)-CapacityTime

Keeppower%20IMR18350%20(Black)-Energy

Keeppower%20IMR18350%20(Black)-PowerLoadTime

Keeppower%20IMR18350%20(Black)-TripCurrent

Keeppower%20IMR18350%20(Black)-Charge



Conclusion

The cell has good high current performance, this also means the capacity is not in top.



Notes and links

This test was done while I was adjusting how to record traces from my 4-terminal system, that is the reason for the tail on one curve and not one the other in the 10A trace.

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
Comparison to other LiIon batteries