Battery abnormity detection method and device and medium

The invention relates to a battery abnormity detection method and device and a medium, and the method is applied to a vehicle, and comprises the steps: responding to a detected preset triggering event, discharging a first battery pack, and charging a second battery pack, the first battery pack and the second battery pack are selected from an upper part battery pack and a lower part battery pack in a battery pack of the vehicle; acquiring first battery data of the first battery pack and second battery data of the second battery pack; and determining abnormal single batteries in the first battery pack and/or the second battery pack according to differences between the first battery data and standard battery data and between the second battery data and standard battery data. According to the battery abnormity detection method, the battery abnormity can be fully detected, and the reliability of the battery abnormity detection result is improved. 本公开涉及一种电池异常的检测方法、装置以及介质，所述方法应用于车辆，包括：响应于检测到预设触发事件，对第一电池组放电并对第二电池组充电，