Battery health degree evaluation method and device, computer equipment and storage medium

The invention relates to a battery health degree evaluation method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring capacity test data of a fresh battery, and calculating the charging capacity of the fresh battery according to the capacity test data; acquiring vehicle battery charging data, and calculating the charging capacity of a vehicle battery according to the vehicle battery charging data; vehicle battery accumulation information is obtained, and battery characteristics of a vehicle battery are extracted according to the vehicle battery accumulation information; the charging capacity of the fresh battery serves as initial reference capacity, the charging capacity of the vehicle battery serves as actual charging capacity, and the battery health degree of the vehicle battery is calculated according to the initial reference capacity and the actual charging capacity; and performing linear fitting on the battery characteristi