Charging cable temperature monitoring
For the car's hybrid 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.
Important
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.
Important
Avoid exposing the control unit and its plug to direct sunlight. In such cases, the overheating protection in the plug is at risk of reducing or interrupting the charging of the hybrid battery.
Important
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.