Wall-mounted LiFePO4 energy storage batteries cover three core scenarios: residential, commercial and telecommunication. For households, it stores solar power generated by PV panels for daily appliance use and emergency power outage backup to cut electricity bills; multiple units can be paralleled for villas and self-built houses to boost storage capacity. Small businesses deploy it in shops and offices for peak load shifting to reduce peak electricity costs and protect cash registers & monitoring devices during blackouts. In telecommunication, it serves as backup power for micro base stations, computer rooms and broadband equipment, compact enough for wall installation in equipment rooms. It also applies to off-grid solar farms, countryside homestays and mini UPS systems with silent operation. Wide temperature adaptability and high safety make it a universal distributed energy storage device for all indoor urban and rural scenarios.