Brillipower 18650 3400mAh (Black)

DSC_5735

Official specifications:
Brillipower%2018650%203400mAh%20(Black)-info

A protected 3400mAh battery, capacity is as expected.
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_5733 DSC_5734

DSC_5736 DSC_5737

DSC_5738
DSC_5739

Brillipower%2018650%203400mAh%20(Black)-Capacity

The curves are as expected for this battery. The difference between the two 5A traces is probably due to component tolerances in the protection circuit. For one of the batteries the protection circuit trips just before the trace is finished.

Brillipower%2018650%203400mAh%20(Black)-CapacityTimeHours

Brillipower%2018650%203400mAh%20(Black)-CapacityTime

Brillipower%2018650%203400mAh%20(Black)-Energy

Brillipower%2018650%203400mAh%20(Black)-PowerLoadTime

Brillipower%2018650%203400mAh%20(Black)-TripCurrent

Brillipower%2018650%203400mAh%20(Black)-Charge



Conclusion

A good 3400mAh battery, the protection does a good job in protecting the cell from misuse.



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