The 100Ah/5KWh stackable LiFePO4 battery supports flexible modular capacity expansion. With a basic capacity of 5KWh per unit, multiple batteries can be stacked and paralleled to upgrade storage capacity as needed. Matched with an 8KW high-power solar inverter, it supports parallel operation of multiple batteries and high-power loads. Equipped with 800-1000W solar panel combinations, it fully meets the charging demand of stacked batteries and improves photoelectric conversion efficiency. Requiring no wall bearing, vertical stacking saves space with uniform heat dissipation and stable operation. Suitable for self-built houses and villas with high power consumption, it realizes self-use of solar power and surplus energy storage.