Sanyo UR18650Y 1900mAh (Red)
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Official specifications:
- Rated capacity: 1850mAh
- Minimum capacity: 1900mAh
- Typical capacity: 2000mAh
- Charging: CC-CV, 1330mA, 4.20V, 38mA cut-off
- Maximum charging current: 1C
- Discharge cut-off: 2.75V
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This is a older high capacity cell (Datasheet from 2012), it is not designed to deliver high current.
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/Sanyo%20UR18650Y%201900mAh%20(Red)-Capacity.png)
The discharge curves matches very nicely, datasheet only shows discharge curves up to 2C, i.e. around 4A, but it can handle more.
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/Sanyo%20UR18650Y%201900mAh%20(Red)-Temp-10.0.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-CapacityTimeHours.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-CapacityTime.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-Energy.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-PowerLoadTime.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-TripCurrent.png)
/Sanyo%20UR18650Y%201900mAh%20(Red)-Charge.png)
Conclusion
This was a very good cell some years ago, today both the capacity and the current ability is rather low.
Notes and links
Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.
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