Samsung 35E 18650 Battery, 3500mAh, 3.65V, Grade A Lithium-ion (INR18650-35E)(Pink)

Samsung INR18650-35E 3500mAh (Pink)

Official specifications:

• Nominal capacity: 3500mAh

• Minimum capacity: 3350mAh

• Nominal voltage: 3,6V – 3,7V

• Charging voltage: 4,2V

• Discharge current: 8A

• Maximum discharge current: 13A

• Charge current: 0,6C 2000mA

• Discharge end voltage: 2,65V

• Pluspol: FlatTop

• Chemistry: LiNiCoAlO2

• Diameter: 18,55mm ± 0,1

• Height: 65,25mm ± 0,15

• Weight: 48g ± 1

This is one of the new high capacity cells.

 

The discharge curves has good tracking.
At 15A the B track stops just after 2.3Ah, this is because my battery holder melts (I hope this is fixed now).

15A is definitly too high current for this cell. The cell temperature is above 75°C (25°C ambient + 50°C temperature raise). Logfile says 87°C for A cell.

On this chart it is obvious how the heat improves the performance at 15A.

Due to the melted battery holder I did only do this for one cell.