Abstract: An electrical generating system for land vehicles comprising an electrical generator operatively connected to the vehicle drive train, a battery and a system interconnecting the brake pedal to a switching arrangement which connects the generator output into the battery for charging purposes upon depression of the brake pedal and also provides for increasing the generator output as a function of brake pedal depression, thus utilizing the back EMF of the generator as a load on the drive train to assist in braking the vehicle and utilizing the momentum of the vehicle during braking to furnish energy to the generator.