UltraFire XSL18350 1200mAh (Orange)

I got this battery from two sources with a few months between.

Sample from LightCastle

DSC_2011

Official specifications:
UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-info

As usual with cheap batteries, the capacity is considerable lower than specified.

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DSC_2012 DSC_2013

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UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-Capacity

As long as the battery is keep at low currents it works fine, but drawing 2A or more the batteries looses capacity and they do not track.

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-CapacityTimeHours

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-CapacityTime

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-Energy

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-PowerLoadTime

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-TripCurrent

UltraFire%20XSL18350%201200mAh%20(Orange)%20LC-Charge



Sample from DealExtreme

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Official specifications:
UltraFire%20XSL18350%201200mAh%20(Orange)-info

Again the capacity is lower than specied.

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UltraFire%20XSL18350%201200mAh%20(Orange)-Capacity

These cells has less capacity, than the first batch, this may be due to age (Note: I did test them in December).
They have the same problem with currents above 2A as the above cells.

UltraFire%20XSL18350%201200mAh%20(Orange)-CapacityTimeHours

UltraFire%20XSL18350%201200mAh%20(Orange)-CapacityTime

UltraFire%20XSL18350%201200mAh%20(Orange)-Energy

UltraFire%20XSL18350%201200mAh%20(Orange)-PowerLoadTime

UltraFire%20XSL18350%201200mAh%20(Orange)-TripCurrent

UltraFire%20XSL18350%201200mAh%20(Orange)-Charge



Conclusion

These batteries are acceptable for cheap batteries.



Notes and links

One of the sets was supplied from LightCastle 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
Comparison to other LiIon batteries