Energy in electric vehicle batteries can be used for multiple purpos are generally defined as V2X applications. specifically, power store can be sold be the Grid in V2G (vehicle to Grid) function. When the alternatively obtain power from EV battery for emergency househo V2H (vehicle to home) function. Besides, the easy and efficient pow make it a vital node in realizing smart grid, small grid, energy storage system and etc ,.more details see specification.