UltraFire 18350 1100mAh (Black-red)

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Official specifications:
UltraFire%2018350%201100mAh%20(Black-red)-info

The protected 18350 from Ultrafire in their new style.

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UltraFire%2018350%201100mAh%20(Black-red)-Capacity

Discharge curves looks very good, the cells tracks nicely and can deliver 7A, at 10A the voltage is a bit low.

UltraFire%2018350%201100mAh%20(Black-red)-Temp-7.0

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UltraFire%2018350%201100mAh%20(Black-red)-CapacityTimeHours

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UltraFire%2018350%201100mAh%20(Black-red)-TripCurrent

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Conclusion

It looks like Ultrafire has got their hands on the best 18350 batteries around and then added a protection. The protection will increase voltage drop at high current.
If they keep making the battery this way it will be a good battery.


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
Comparison to other LiIon batteries