Sanxing 15 kWh high-capacity lithium battery storage system with an integrated digital display screen.Components visible: A wall-mounted hybrid inverter with an LCD readout, a blue-accented AC/DC circuit breaker distribution box, a rotary switch/isolator, and a black floor-standing Sanxing LiFePO4 battery pack (51.2V).System function: Stores excess solar or grid power during the day and discharges it to provide continuous backup electricity for household appliances.Monitoring: Both the inverter and the battery unit feature digital display screens to track real-time system voltage, state of charge, and load status.