The BLUETTI B300K offers a hefty 2764.8Wh, enhancing your AC200MAX, AC200L, AC300, and AC500 setups for ultimate power. Seamlessly combine with other BLUETTI batteries like the B300S for an impressive 5,836.8Wh capacity boost. Weighing just 29.5kg (65lbs), it's easy to move and can be wall-mounted to save indoor space. Equipped with LiFePO4 batteries, a cooling fan, and AI-powered BMS for over 4,000 cycles of stable, safe use. Includes the B300K battery, P090A expansion cable, and user manual for a hassle-free upgrade experience.