Aucooma IMR18650 2800mAh (Purple-blue)

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Official specifications:
Aucooma%20IMR18650%202800mAh%20(Purple-blue)-info

A battery with good capacity and high current ability.

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Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Capacity

The discharge curves has very good tracking.

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Temp-15.0

At 15A the cell gets warm, but not too warm.

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Temp-20.0

At 20A the temperature is above 80C

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Temp-30.0

The temperature at 30A reach about the same temperature as 20A, but my sensor do first see it after the discharge is finished.

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-CapacityTimeHours

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-CapacityTime

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Energy

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-PowerLoadTime

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-TripCurrent

Aucooma%20IMR18650%202800mAh%20(Purple-blue)-Charge



Conclusion

This looks like a good high current cell, but I would be a bit careful with 20A continuous, due to the high temperature.



Notes and links

The batteries was supplied by Aucooma for a 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
Compare to 18650 and other batteries