Golisi IMR26650 4300mAh (Gold)



Official specifications:
  • Nominal capacity: 4300mAh
  • Constant discharging: 35A
  • Nominal voltage: 3.7V
  • Discharging cut-off voltage: 2.75V
  • Charging cut-off voltage: 4.20V +/-0.05V
  • Internal resistance: 30mOhm
  • Standard charging current: cc/cv <=2A
  • Operating temperature: Charging: 0°C ~ 45°C, Discharging: -20°C ~ 60°C




This is a high current 26650 cell with moderate capacity.










The batteries easily handles up to 20A without any significant drop in capacity. The curves tracks fairly well, with only a minor capacity difference.
The 15A discharge curve for the A cell is missing, my equipment had a fault during the charging after the 10A test.







The battery gets hot during a 30A discharge, but not too hot.















Conclusion

A 30A discharge current is usual problematic for a 26650 cell, but not for here, the cell can handle it.
This is definitly a high current cell!



Notes and links

The batteries was supplied by Golisi 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
Compare to 18650 and other batteries