Volvo S90 12V Battery Charging Failure?

[DiPhoebe]

Volvo S90 12V battery charging failure inspection methods are as follows: 1. Check whether the charging circuit connection is reliable, and whether the connection and plug contact are intact. 1. Check whether the socket and plug of the battery box have "sparking" or burning marks, and whether there is any line damage or disconnection. 2. Check the connection inside the battery pack. If the wiring inside the battery pack is disconnected, it will also cause the charger not to charge. 3. Tighten the socket and plug to ensure the charging circuit is firmly connected. 2. Check whether the charger is damaged and whether the charging parameters meet the requirements. Replace the charger if it is abnormal. 3. Check whether the battery is dry inside. 4. Check whether the plates have irreversible sulfation.