Charging cable temperature monitoring*

For the car's battery to be charged safely every time1, the control unit for the charging cable and the plug have built-in monitoring devices for the temperature.

Temperature monitoring takes place in the control unit and the plug.

Monitoring in the control unit

Charging is switched off if the temperature of the control unit is too high. This is to protect the electronics. This may take place in a high outside temperature, for example, or when strong sunlight shines directly on the control unit.

Monitoring at the plug

The charging current is reduced if the temperature at the plug is too high. If the temperature exceeds a critical level, charging is stopped completely.


The charging cable's temperature monitoring helps to protect the car's charging system, but cannot guarantee that overheating will never occur.


If the temperature monitoring has automatically lowered the charging current repeatedly and charging has been interrupted then the cause of the overheating must be investigated and rectified.


Avoid exposing the control unit and its plug connector to direct sunlight. The overheating protection in the plug connector may otherwise reduce or stop the charging of the car.


If charging is unintentionally stopped, both the charging cable and the car’s charging system should be checked by a trained and qualified Volvo service technician. The wall socket should also be checked by a licensed electrician.
  1. * Option/accessory.
  2. 1 Refers to charging with a mode 2 charging cable.