BestFire IMR26650 6000mAh (Purple)

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Official specifications:
BestFire%20IMR26650%206000mAh%20(Purple)-info

A "high" capacity, high current rated cell.

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BestFire%20IMR26650%206000mAh%20(Purple)-Capacity

The two cells are not the same, they match in capacity, but the internal resistance is different (It is more obvious on the time charts). This also means there is a difference in current handling ability.


BestFire%20IMR26650%206000mAh%20(Purple)-Temp-15.0

One cell cannot handle 15A

BestFire%20IMR26650%206000mAh%20(Purple)-Temp-20.0

The other cell can handle 20A continuous drain.

BestFire%20IMR26650%206000mAh%20(Purple)-Temp-30.0

But it gets to hot at 30A.

BestFire%20IMR26650%206000mAh%20(Purple)-CapacityTimeHours

BestFire%20IMR26650%206000mAh%20(Purple)-CapacityTime

BestFire%20IMR26650%206000mAh%20(Purple)-Energy

BestFire%20IMR26650%206000mAh%20(Purple)-PowerLoadTime

BestFire%20IMR26650%206000mAh%20(Purple)-TripCurrent

The internal resistance I calculate is 78mOhm and 44mOhm, this is a large difference.

BestFire%20IMR26650%206000mAh%20(Purple)-Charge



Conclusion

I am not very impressed with the huge difference in internal resistance and I would not draw 60A from the good cell.



Notes and links

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
Compare to 18650 and other batteries
Compare to 26650 and other batteries