Wall-mounted power supply device

A wall-mounted power supply device includes: a bottom case; the upper cover is detachably arranged on the bottom shell in a covering manner; the battery core assembly is arranged in the bottom shell and is used for storing electric energy; the communication module is arranged on the side wall of the bottom shell and is used for communicating with the outside; the power plug is arranged on the side wall of the bottom shell and is used for inputting a power supply to the battery cell assembly or outputting the power supply from the battery cell assembly; the wall hanging piece is connected with the bottom shell and is used for wall hanging and fixing; the display screen is arranged on the upper cover and used for interacting with a user; the switch is arranged on the side wall of the bottom shell and is used for controlling the on-off of the wall-mounted power supply device; and the BMS control module is arranged in the bottom shell and electrically connected with the battery cell assembly, the communication mo