GIF TR16340 2500mAh (Gray)
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Official specifications:
- Type: GIF 16340
- Voltage: 3.7V
- Capacity: 2500mAh
- Chemistry: Li-ion
- Rechargeable: Yes
- Color: Gray
- Size(L*D): About 35*17mm
/GIF%20TR16340%202500mAh%20(Gray)-info.png)
In the store the image and heading shows a GTF battery, but the received battery is marked GIF (I would not expect any difference).
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/GIF%20TR16340%202500mAh%20(Gray)-Capacity.png)
The battery is about 10 times below the rated capacity and there is significant difference between the two cells.
/GIF%20TR16340%202500mAh%20(Gray)-CapacityTimeHours.png)
/GIF%20TR16340%202500mAh%20(Gray)-CapacityTime.png)
/GIF%20TR16340%202500mAh%20(Gray)-Energy.png)
/GIF%20TR16340%202500mAh%20(Gray)-PowerLoadTime.png)
/GIF%20TR16340%202500mAh%20(Gray)-TripCurrent.png)
/GIF%20TR16340%202500mAh%20(Gray)-Charge.png)

This IR curve is for the best of the two batteries.
Conclusion
It is a very bad 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
Graphical comparison to other LiIon batteries
Table with all tested LiIon batteries