LP-A-51.2V stackable all-in-one solar ESS integrates pure sine wave inverter, LiFePO4 battery and MPPT controller. Available in 6kW/12kW power & 300Ah/600Ah capacity. 98% high efficiency, 8000+ long cycle life, 10-year service life, optional WIFI remote monitor. Perfect for villa grid-tied & off-grid solar power, home blackout emergency backup. Wholesale & OEM customization available.