The full-charge total capacity of the 51.2V 314Ah LiFePO4 battery is about 16kWh, and the actual duration varies with load power. Under low load (total power within 500W) with only essential devices such as lights, routers and refrigerators working, it can last 25-30 hours continuously. For daily basic household power (1000-1500W), the duration reaches 10-15 hours. When driving high-power equipment like air conditioners and water heaters (about 3000W), it lasts 4-6 hours. Sufficient battery duration fully meets the needs of rainy-day outage emergency and night non-photovoltaic power supply, ensuring uninterrupted household power consumption.