The HBP1800 series all-in-one energy storage solution, support 1KW 2KW 3KW output for different load appliances. It's based on the original cabinet design, stacked with solar energy storage lithium battery 960wh~3072wh, and built in battery protection system, fully retain the use of load power in applications of residential, school, commercial and public utility area. Features higher capacities for greater compatibility with more power-hungry devices, and the latest in USB-C Power Delivery capable of charging larger USB devices like laptops. Includes pre-installed solar charging optimization module that functions as a maximum power point tracker (MPPT), resulting in up to 40% faster charge times. With LiFePO4 lithium cells, known for stability and safety, monitored by a state-of-the-art battery management system that prevents overcharge, over-current, and short circuiting. Built in Multi safety protection that include short circuit, overload and over-temperture and error code reporting.