Energy balancing method and device, equipment and storage medium

The invention discloses an energy balancing method, device and equipment and a storage medium, and is applied to a power supply battery of an automobile, and the energy balancing method comprises the steps: obtaining a single voltage at a current moment after a single battery is charged or discharged for a preset time length, so as to obtain single voltage data, and if the single voltage data is within a preset single voltage range, determining that the single battery is charged or discharged; carrying out differential calculation on the monomer voltage data to obtain differential voltage data, carrying out inflection point searching on the differential voltage data according to a pre-constructed relation value table to obtain a characteristic inflection point, obtaining the electric quantity of the battery monomer according to the characteristic inflection point to obtain a characteristic electric quantity, and carrying out equalization calculation according to a target characteristic electric quantity of th