It consists of 24 lithium iron phosphate batteries and management systems, maintenance switches, DC contactors, film capacitors, cement resistors, load modules, international AC charging ports, and chargers. The battery, maintenance switch, film capacitor and other components inside the platform can be freely disassembled and assembled. After the line is completely connected, the battery pack can discharge the internal load, discharge the external load, or use the charging gun with the national standard charging protocol and interface to charge when the battery power is insufficient.