NOVELTY - The apparatus includes an electric generator (20) connected to the vehicle drive train (24) that is connected to the vehicle battery (32) via a transformer (30) and a generator disablement switch (36). The switch is connected to the vehicle accelerator mechanism (42) so that when the vehicle is accelerating the circuit is open while when the vehicle is not accelerating the circuit is closed, where upon generated electricity passes to the vehicle battery.    USE - For use with vehicles, particularly those powered by electric motors.    ADVANTAGE - The apparatus acts to convert vehicle kinetic energy normally lost during braking and other vehicle deceleration into electrical energy which is transmitted to the vehicle battery, while preventing loss of vehicle fuel energy to generator operation during acceleration. Economical to manufacture and reliable, with the support structure allowing the generator to float vertically with the vehicle suspension system.    DETAILED DESCRIPTION - The apparatus has an electric generator with an armature (22) which is manufactured or assembled as part of the vehicle drive train, with a generator circuit connecting the generator to a generator disengagement switch and to the vehicle battery. The generator disengagement switch is connected to the vehicle accelerator mechanism so that the disengagement switch is open when the during operation of the accelerator mechanism and closed during non-operation of the accelerator mechanism.    The vehicle drive train has a vehicle drive shaft onto which an armature is assembled and around which a field structure is built, with a generator support structure fastening the generator to the vehicle frame that includes wheel assemblies and guide plates which restrain the generator against lateral movement while allowing vertical movement. The circuit may also include a transformer to transform electrical current and voltage produced by the electric generator to the operating current and voltage of the vehicle electrical system.    DESCRIPTION OF DRAWING(S) - A broken away perspective view of the battery charging apparatus and the drive train of a vehicle.    Electric generator (20)    Generator armature (22)    Drive train (24)    Transformer (30)    Vehicle battery (32)    Generator disablement switch (36)    Vehicle accelerator mechanism (42)