As a flexible and multifunctional household appliance, this product is the best partner for DC appliances, and can supply power to higher power appliances by paralleling. Equipped with an external inverter, it can supply power to medium-load household appliances and lighting such as refrigerators, electric fans, TVs, desktop computers and other households in areas without electricity or unstable power supply. The product is simple and easy to use, can be powered by portable, and can be used in a wider range of scenarios.