A delivery system for delivering a prosthesis includes a housing, a sheath extending from within the housing, a first motor housed within the housing, a first battery coupled to the first motor, a second motor housed within the housing, a second battery coupled to the second motor, and an actuator accessible from an exterior of the housing. The actuator is coupled to the first and second batteries to selectively activate the first and second batteries to power the first and second motors, respectively. A first pulley is coupled to the first motor such that the first pulley rotates during operation of the first motor and a second pulley is coupled to the second motor such that the second pulley rotates during operation of the second motor. Actuation of the actuator causes at least one of the first and second motors to rotate, thereby causing at least one of the first and second pulleys to wind up a portion of a single continuous cable and retract the sheath.