HV25640 is a high-voltage wall-mounted household battery with grade A cells, long life span and high safety. It can be matched with a three-phase inverter to output 380 volts, and is also compatible with 220V normal electricity needs. A single battery pack with a power capacity of 10KWh can meet the majority of household electricity needs and cover a wide range of areas without power supply. It can be supported by a maximum of 4 parallel connections.