ENERGY STORAGE DEVICE

An energy storage device includes a battery pack, a charging converter is electrically connected to a battery pack and configured to convert electric energy input to or output from the battery pack. A charging plug is electrically connected to the charging converter to deliver the electric energy converted by the charging converter. A temperature regulation flow channel of the battery pack and a temperature regulation flow channel of the charging converter are arranged in the first circulation unit. The second circulation unit and the first circulation unit are isolated from each other. The temperature regulation flow channel of the charging plug is in the second circulation unit. The first heat exchanger is arranged at least between the first circulation unit and the second circulation unit. The heat dissipation apparatus is arranged in one of the first circulation unit, the second circulation unit, and the first heat exchanger.