Keeppower 18650 3100mAh (Black)

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Official specifications:
Keeppower%2018650%203100mAh%20(Black)-info

The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.

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Keeppower%2018650%203100mAh%20(Black)-Capacity

Each chart has curves for two batteries, but these batteries are nearly identical in performance and the curves are on top of each other.

Keeppower%2018650%203100mAh%20(Black)-CapacityTimeHours

Keeppower%2018650%203100mAh%20(Black)-CapacityTime

Keeppower%2018650%203100mAh%20(Black)-Energy

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Keeppower%2018650%203100mAh%20(Black)-TripCurrent

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Conclusion

This battery uses a good cell, this secures many things:

All in all a very good battery.



Notes and links

Keeppower is a OEM manufacturer, i.e. many of the batteries they produce is sold with other names on them.

The batteries 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