POWER REPLENISHMENT SYSTEM AND METHOD FOR ENERGY STORAGE DEVICE

The embodiment of the application discloses a power replenishment system and method for energy storage device. The power replenishment system for energy storage device comprises: an energy storage device, and the energy storage device comprises a DC charging interface for power replenishment; a power replenishment device, comprising a DC output interface arranged to be connected with the DC charging interface, the power replenishment device is connected with a power grid end, and the power replenishment device is configured to convert an AC voltage of the power grid end into a DC voltage and transmit the DC voltage to the energy storage device via the DC output interface.