Available in wall-mounted and floor-standing types, 10KWh LiFePO4 storage batteries match all house types and serve as core cost-cutting equipment for solar families. It stores surplus solar power generated in daytime and discharges during night or peak price hours to reduce grid electricity purchase. It automatically switches to off-grid mode to maintain essential power supply during blackouts. LiFePO4 cells support over 6000 cycles with mild capacity decay within 10 years, avoiding frequent replacement required by lead-acid batteries every 3 years and cutting long-term investment. The lightweight wall-mounted version is easy to install, while the floor-standing model supports high-power expansion. Built-in intelligent EMS optimizes charge-discharge schedule to maximize clean solar utilization. With multi-layer safety protection, it can be installed indoors, beside walls or garages for all urban and rural houses. It lowers carbon emissions and saves electricity bills via peak-valley price gaps, recovering equipment investment within 3-5 years.