Samsung SDI INR21700-40T 21700 4000 mAh (30A)

8.80 Inc. 19% Vat.

Samsung SDI INR21700-40T 21700 3000 mAh (30A)


Lithium cells without protective circuit may only be operated with protective electronics or may be used by competent persons.
Incorrect handling or short circuit can lead to fire or explosion. Li-ion cells must not be overcharged or deep discharged. Furthermore, Li-ion cells with damage to the body of the cell, or to the shrink tube may not be used. Please make sure that Li-Ion cells can only be charged with suitable charging electronics (chargers).

Technical data

  • Capacity: 4000 mAh (Typ.) / 3950 mAh (Min.)
  • Nominal voltage: 3.6V
  • Charging voltage: 4.2V + 0.05V
  • End-of-dicharge Voltage: 2.50V
  • Charge Current (Max.): 6000mA (approx. 1.2C)
  • Charge Current (recommended): 2000 mA (0.5C)
  • Discharge Current (Max.): 30A (approx. 7C)
  • Weight: 70 g
  • Dimensions: 21.22 mm Diameter / 70.3 mm Length
  • Operating Temperatures: 0 – 50°C by charging / -20°C – +80°C by discharging


  • Electromobility
  • Medical Equipment
  • Measuring instruments
  • Power tools

You will also find the matching cell brackets under article numbers: 9995 and 9996