Test/review of UltraFire TR18500 1600mAh (Blue)

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HKJ

HKJ

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Mar 26, 2008
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[size=+3]UltraFire TR18500 1600mAh (Blue)[/size]

DSC_8656.jpg


Official specifications:
  • Voltage: 3.7V
  • Chemistry: Li-ion
  • Capacity: 1600mAh
  • Weight: 40g
  • Color: Blue

UltraFire%20TR18500%201600mAh%20(Blue)-info.png


A 18500 form Ultrafire.

DSC_8654.jpg
DSC_8655.jpg


DSC_8657.jpg
DSC_8658.jpg


DSC_8659.jpg

DSC_8660.jpg

DSC_8661.jpg


UltraFire%20TR18500%201600mAh%20(Blue)-Capacity.png


This is not good discharge curves, one cell is about 750mA and can handle up to 3A, the other cell is 500mAh and can handle up to 1A

UltraFire%20TR18500%201600mAh%20(Blue)-Temp-1.0.png


UltraFire%20TR18500%201600mAh%20(Blue)-Temp-5.0.png


UltraFire%20TR18500%201600mAh%20(Blue)-CapacityTimeHours.png


UltraFire%20TR18500%201600mAh%20(Blue)-CapacityTime.png


UltraFire%20TR18500%201600mAh%20(Blue)-Energy.png


UltraFire%20TR18500%201600mAh%20(Blue)-PowerLoadTime.png


UltraFire%20TR18500%201600mAh%20(Blue)-TripCurrent.png


UltraFire%20TR18500%201600mAh%20(Blue)-Charge.png




[size=+3]Conclusion[/size]

The Ultrafire brand is not the highest quality, this time I got a bad cell and a very bad cell.

My rating is bad cell, stay away from them.



[size=+3]Notes and links[/size]

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
 
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