MULTI-BATTERY-PACK CHARGING MANAGEMENT METHOD AND APPARATUS, AND ENERGY STORAGE DEVICE

A charging management method for multiple battery packs comprises determining a target charging current of each battery pack according to a sampled temperature of each battery pack and a sampled voltage of each battery pack; calculating a difference between the sum of the target charging currents of various battery packs and the sum of sampled charging currents of the various battery packs, to obtain a total PI adjustment value; sending the total PI adjustment value to a charging device, to enable the charging device to adjust a total charging current according to the total PI adjustment value; determining a charging current of each battery pack according to the sampled charging current of each battery pack and the total charging current, and determining a charging voltage of each battery pack according to the sampled voltage of each battery pack.