Wall-mounted LiFePO4 batteries deliver remarkable energy-saving & economic benefits with over 95% energy conversion efficiency, greatly improving solar utilization and reducing grid power purchase to cut long-term electricity expenses. Equipped with intelligent BMS for full-process control, it monitors voltage, current, SOC and temperature in real time, supporting WiFi & Bluetooth remote connection. Users can check energy consumption and set charge-discharge strategies via mobile APP for refined energy management. It optimizes charging under time-of-use tariffs, storing power at low rates and discharging at peak hours to maximize electricity savings. Low self-discharge rate minimizes power loss during standby with no frequent recharging required for long storage. Integrating energy saving, intelligence and low cost, it meets green low-carbon transformation demands of households and small enterprises, becoming mainstream supporting equipment for distributed PV energy storage.