Abstract: A battery powered electric motor driven rewinding and storing apparatus for flexible protective covers for vehicles. The apparatus has a framework enclosed by a flexible vinyl covering with an axle extending therethrough for winding a vehicle cover upon. One end of the axle attaches to a manual crank and the other to a gear box. A direct current electric motor drives the gear box from a low voltage battery. The gear box can be disengaged to unwind the cover or to facilitate manual rewinding. The apparatus includes an adjustable strap which allows attachment to different locking mechanisms in different automobile trunks when the apparatus is resting on the automobile bumper. Elastic straps are used to hold the apparatus in place on the bumper.