Sanyo UR18650FB 2400mAh (Red)



Official specifications:

• Nominal capacity: 2400mAh
• Nominal voltage: 3.70V
• Charging: 2400mA to 4.2V
• Maximum discharge current: 4800mA

This is a old "high capacity" cell.











The discharge curves tracks nicely, but the cell cannot deliver more than about 2C, i.e. about 5A.





















Conclusion

This cell may have been a very good cell when it was made, but it is way behind a modern cell in both capacity and current.



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