PKCell IMR18350 700mAh (Blue)
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Official specifications:
- Nominal voltage: 3.7V
- Capacity: 700mAh
/PKCell%20IMR18350%20700mAh%20(Blue)-info.png)
LiIon 18350 cell from PKCell, with a rated capacity of 700mAh it looks like old technology.
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/PKCell%20IMR18350%20700mAh%20(Blue)-Capacity.png)
As is often the case for smaller batteries the capacity of the two cells is not perfectly matched. The cells are best used at currents below 5A.
/PKCell%20IMR18350%20700mAh%20(Blue)-Temp-5.0.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-Temp-7.0.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-CapacityTimeHours.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-CapacityTime.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-Energy.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-PowerLoadTime.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-TripCurrent.png)
/PKCell%20IMR18350%20700mAh%20(Blue)-Charge.png)

Conclusion
These cells are definitely old technology with lower capacity and current capabilities than more modern cells.
Notes and links
The batteries was supplied by a reader 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
Graphical comparison to other LiIon batteries
Table with all tested LiIon batteries