USP uses high-performance lithium iron phosphate batteries as energy storage backup, which is small, light, and easy to carry. In addition, the portable UPS power supply has a variety of interfaces such as AC, DC, and USB, which can meet the charging needs of different electronic devices and charge multiple electronic devices at the same time. Outdoor 220V portable UPS mobile power supply can not only support USB device charging, but also can be used for AC equipment, which means that some electric equipment that could not be taken out of the door in the past can also be used outside.