AW IMR18650 3000mAh (Red) 2016

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Official specifications:
AW%20IMR18650%203000mAh%20(Red)%202016-info

Batteries with both high capacity and high current ability from AW.

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AW%20IMR18650%203000mAh%20(Red)%202016-Capacity

The discharge curves tracks very nicely and capacity drops only a little with increase current, at least up to the rated 20A.
But why do one cell terminate on temperature and other do not?

AW%20IMR18650%203000mAh%20(Red)%202016-Temp-15.0

From this temperature chart the explanation is clear, I forgot to mount the temperature sensor on the A cell.
The battery gets rather warm at 15A

AW%20IMR18650%203000mAh%20(Red)%202016-Temp-20.0

AW%20IMR18650%203000mAh%20(Red)%202016-Temp-30.0

The cell without temperature sensor must have been very warm here. It was warm enough to get damaged!

AW%20IMR18650%203000mAh%20(Red)%202016-CapacityTimeHours

AW%20IMR18650%203000mAh%20(Red)%202016-CapacityTime

AW%20IMR18650%203000mAh%20(Red)%202016-Energy

AW%20IMR18650%203000mAh%20(Red)%202016-PowerLoadTime

The damage to the A cell is very obvious here.

AW%20IMR18650%203000mAh%20(Red)%202016-TripCurrent

And also on this curve. Due to this damage I had to cheat with the "internal resistance" value in the table, it is only for cell B, I did not use the value from the damaged cell.

AW%20IMR18650%203000mAh%20(Red)%202016-Charge



Conclusion

The batteries has good performance but watch out for the temperature at high current.



Notes and links

The batteries was supplied by aw-akku.de for review.

How is the test done and how to read the charts
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