UltraFire 16340 650mAh (Red-black)

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Official specifications:
UltraFire%2016340%20650mAh%20(Red-black)-info

This is a fairly new style packing from UltraFire, but is the contents any good?

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UltraFire%2016340%20650mAh%20(Red-black)-Capacity

One of the cell has the rated capacity, the other have less capacity and neither of them can deliver more than 1A to 2A. This do not look like a high current cell.

UltraFire%2016340%20650mAh%20(Red-black)-Temp-2.0

UltraFire%2016340%20650mAh%20(Red-black)-Temp-3.0

UltraFire%2016340%20650mAh%20(Red-black)-CapacityTimeHours

UltraFire%2016340%20650mAh%20(Red-black)-CapacityTime

UltraFire%2016340%20650mAh%20(Red-black)-Energy

UltraFire%2016340%20650mAh%20(Red-black)-PowerLoadTime

UltraFire%2016340%20650mAh%20(Red-black)-TripCurrent

UltraFire%2016340%20650mAh%20(Red-black)-Charge



Conclusion

This battery is not a high current battery and the mismatch between the two cells is rather high.
It looks like it has a working overload protection, but at a way to high value.



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