Procedure and device for voltage regulation

The method of voltage regulation is carried out with the assistance of a control unit (SE) which includes a timer. The already set charging capacity for the battery (BS) is matchable according to the need dependent fluctuating power intakes of the electric user loads (VS,VA,VD), and to engine speed dependent fluctuating power outputs of the generator (G), or the generator loading. The battery is used as a starting battery for the engine.