A motorized window covering assembly including a head rail, a bottom rail, and a window covering extending therebetween. Located at the head rail is a power storage device, while an electronic port (e.g., transferring power and/or data) is located at the opposite bottom rail. Electrical conductors are routed through the window covering electrically connecting the power storage device to the electronic port. The power storage device is chargeable at any position of the bottom rail relative to the head rail.