There could be a loss of battery. There could be something wrong with the battery. If you find that there are defects, you can optimize the BMS management system of the battery pack, so that the battery storage and output can be better and more stable and efficient. New energy electric vehicles are driven by electricity, so owners should also pay special attention when charging. Charging can be as far as possible not to use the way of tepid fast charging, and choose the way of slow charging, which is conducive to the life of the battery.