UltraFire TR18500 1600mAh (Blue)
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Official specifications:
- Voltage: 3.7V
- Chemistry: Li-ion
- Capacity: 1600mAh
- Weight: 40g
- Color: Blue
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A 18500 form Ultrafire.
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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
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/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)
Conclusion
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.
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
Compare to 18650 and other batteries