When a new energy vehicle displays a low unit voltage, the following steps can be taken to troubleshoot and resolve the issue:
1. Check the charging equipment and charging environment: Confirm whether the charging equipment is working properly, and try replacing it with another charger of the same type for charging testing to eliminate the possibility of charging equipment failure. Check if the charging environment is suitable and avoid charging in extremely cold or hot environments, as this may affect the charging efficiency and voltage stability of the battery. If the ambient temperature is not suitable, you can try moving the vehicle to a more suitable environment for charging.
2. Check the battery status and connection: Use tools such as a multimeter to measure the voltage and resistance of individual batteries to determine if they are damaged or have decreased performance. If the battery resistance is abnormal, it may be due to internal problems and needs to be replaced in a timely manner. Check whether the connection of the battery pack is firm, including whether the connecting wires, plugs, etc. between the batteries are in good contact, and whether there is any looseness or corrosion. If any connection issues are found, they should be repaired or replaced in a timely manner.
3. Seek professional repair and battery replacement: If the above steps do not solve the problem, it is recommended to send the vehicle to a professional repair center for inspection and repair of new energy vehicles. Professional maintenance personnel will use specialized diagnostic equipment to conduct a detailed inspection of the interior of the battery pack and identify the specific cause of low individual voltage. According to the advice of the maintenance personnel, it may be necessary to replace damaged individual batteries or the entire battery pack. When replacing the battery, the battery model and brand that matches the original vehicle should be selected to ensure the performance and safety of the battery.
When the new energy vehicle displays low individual voltage, the owner should check the charging equipment and charging environment, then check the battery status and connection, and finally seek professional repair or battery replacement according to the actual situation. Through these steps, the problem of low individual voltage in new energy vehicles can be effectively solved.