VACUUM CLEANER

A vacuum may include a cleaner body including a suction motor for generating suction force, a suction part communicating with the cleaner body and suctioning air and dust, and a battery assembly for supplying a power to the suction motor. The battery assembly may include a battery unit, a battery terminal, a switch for connecting or disconnecting the battery unit and the battery terminal, and a battery case for accommodating the battery unit. The cleaner body may include a body supporting the battery assembly and a switching operation part for operating the switch when the battery assembly is mounted on the cleaner body.