The off-grid multi-function inverter is a compact device that combines the functions of an inverter, MPPT solar charger, and battery charger to provide uninterrupted power support. At the same time, this inverter supports different types of batteries such as lead-acid and lithium-ion.With its user-friendly LCD display, users can easily configure settings such as battery charging current, AC/solar charger priority, and acceptable input voltage for various applications.