With a capacity suitable for most household power demands, the 8KWh LiFePO4 energy storage battery features strong scene adaptability and serves as the core equipment for whole-house energy storage. It can cooperate with solar photovoltaic systems to store clean energy and realize self-sufficient household power consumption. It can quickly switch to backup power supply during grid outages to ensure normal operation of key loads such as lighting, household appliances and security equipment. It is also applicable to self-built houses, villas, areas without stable power grids and outdoor courtyards, supporting both on-grid peak shaving and off-grid independent power supply, perfectly meeting dual demands of daily energy saving and emergency power backup.