Sibeile IMR18650 3100mAh (Black)

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Official specifications:
Sibeile%20IMR18650%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.

DSC_3044 battery%20pack-1

After shipping the samples to me, some print was added to the box.

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The batteries are marked "IMR Li-Mn", but I doubt it, the perform is exactly like the Panasonic 3100mAh batteries and they are not IMR cells.

Sibeile%20IMR18650%203100mAh%20(Black)-Capacity

These discharge curves are very good.

Sibeile%20IMR18650%203100mAh%20(Black)-CapacityTimeHours

Sibeile%20IMR18650%203100mAh%20(Black)-CapacityTime

Sibeile%20IMR18650%203100mAh%20(Black)-Energy

Sibeile%20IMR18650%203100mAh%20(Black)-PowerLoadTime

Sibeile%20IMR18650%203100mAh%20(Black)-TripCurrent

Sibeile%20IMR18650%203100mAh%20(Black)-Charge



Conclusion

The batteries looks like they are based on a very good Panasonic cell, but I do not like they are marked IMR.



Notes and links

According to Sibeile the IMR text will be removed from the next batch of cell.
The batteries was supplied by Sibeile 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