Floor-standing LiFePO4 batteries feature ultra-long cycle life of over 10,000 times with slow capacity decay, delivering stable performance for more than ten years. Different from high-maintenance, short-life lead-acid batteries, this floor-mounted model requires no water refilling or regular upkeep, slashing later maintenance costs. The vertical large-capacity cabinet provides standard 8kWh storage with low energy loss to maximize solar power utilization. Users store low-cost electricity at night and discharge during peak hours to cut monthly power expenses, and store self-generated solar power for self-supply. Easy to expand via parallel connection, it fits large apartments and villas. It greatly reduces equipment replacement and power costs in long-term use with outstanding overall cost performance.