Portable multifunctional outdoor power supply is a portable energy storagebattery with built-in lithium ion batteries, it can both store energy and output alternating current. The product is light in weight, high in capacity and power, easy to carry and can be used indoors or outdoors.Multiple charging options such as conventional charging, solar charging or vehicle charging can be selected according to different usage conditions.The output interface is equipped with both strong 100- 240V AC output power and 5V/9V/12V DC output modules, which can meet electricity demands of various scenarios such as family emergency black-out, self-driving journey, outdoor work, and emergency rescue.