Electric-powered device and installation seat thereof

An installation seat may be adapted for installing a battery and include: a seat body, a support assembly and a locker. The support assembly may be disposed on the seat body and include a first support seat and a second support seat spaced apart from each other. The locker may be disposed on the seat body and include a locking shaft, the locking shaft may be adapted to extend through a portion of the battery protruding into a space between the first support seat and the second support seat and be supported on the first support seat and the second support seat to fix the battery.