If the voltage of a new energy vehicle is too low, the following solutions can be used:
1. Check and replace the charging device: Check if the charging device is functioning properly, try using a similar charger for charging testing, and see if the problem can be solved. If the charging device is aging or has poor performance, it is recommended to replace it with an efficient charger to improve charging voltage and efficiency.
2. Check and maintain the battery: Use tools such as a multimeter to measure the voltage and resistance of individual batteries, and determine if there are any performance abnormalities or damage to the battery. If the voltage of a single battery is low, it may be due to battery aging, excessive self discharge, or insufficient capacity. At this point, you can try to maintain the battery, such as adding distilled water for anti negative charge and discharge treatment, and then connecting it in series with other batteries for charge and discharge to restore battery performance. If the battery is severely damaged and cannot be repaired, a new individual battery or the entire battery pack needs to be replaced.
3. Adjust charging environment and habits: Cold or hot environments may affect the charging effect of the battery, resulting in low voltage. When charging, it is advisable to choose a warm and dry environment to avoid charging under extreme weather conditions. At the same time, it is important to cultivate good driving habits and avoid prolonged use of onboard electrical appliances when the engine is turned off, in order to reduce the burden and loss of the battery.
4. Check the charging system and battery connection: The starting power source of new energy vehicles is generally lead-acid batteries, and their charging process is managed by the charging control system. If there is a malfunction in the charging system, or if the battery connection line is loose or has poor contact, it may also lead to low individual voltage. It is necessary to regularly inspect and maintain the charging system to ensure that the battery connection lines are reliable and undamaged. If problems such as loose wiring or poor contact are found, they should be repaired in a timely manner.
5. Contact the manufacturer or professional repair center: If none of the above methods can solve the problem, it is recommended to contact the manufacturer or professional repair center of the new energy vehicle for further inspection and repair. They have professional equipment and technology to diagnose problems more accurately and provide corresponding solutions.