Windyfire 18650 2700mAh (Black)

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Official specifications:
Windyfire%2018650%202700mAh%20(Black)-info

This battery is neither a high current or high capacity battery, but has a decent capacity.

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Windyfire%2018650%202700mAh%20(Black)-Capacity

Discharge curves has good tracking and the protection kicks in a bit above 5A.

Windyfire%2018650%202700mAh%20(Black)-CapacityTimeHours

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Windyfire%2018650%202700mAh%20(Black)-Energy

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Windyfire%2018650%202700mAh%20(Black)-TripCurrent

Windyfire%2018650%202700mAh%20(Black)-Charge



Conclusion

The battery do not set any performance records, but if the price is right it looks like a good cell for low current applications (Like many flashlight).



Notes and links

The batteries was supplied by Windyfire 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
Compare to 18650 and other batteries