A vehicle-related charging system ("S") for propelling an electrically, i.a. by one or several batteries or a set of batteries constituting a second source of power ("II"), propellable vehicle along a stretch of a roadway and its associated roadway sections or portions (2a1), comprising "a" a plurality of roadway portions (2a1) for subdividing the stretch of the roadway, wherein each one of these roadway portions is allotted one or more elongated tracks or slits (51, 52) having introduced therein current supplyable and under voltage placeable conductors (4a', 4b'), connectable over a switch to one or more power sources external to the vehicle, constituting a third source of power ("III"), such as electric stations ("s1"), for thereby i.a. enabling a charging of said set of batteries ("II", "B") related to the vehicle, but over the battery set up driving the vehicle along the stretch of roadway and its roadway portions (2a1), and "b" one or more, by means of an electric motor or motors, powerable vehicles, comprising a first source of power ("I") in the form of a vehicle-related power generating means, with each of the respective vehicles exhibiting a control circuit (100, "R1") adapted for necessary distribution of power, adapted for creating a required power and/or speed control, wherein said vehicle is on its underneath side provided with an up and down and sideways, counting across the direction of transportation of the vehicle, displaceable contact means, and with said elongated track or tracks and its conductors (4a', 4b') extending along the stretch of the road and its roadway and in which said contact means is coordinated with a vehicle-related control equipment (100, 10) for creating an adaptation of the contact means so as to at least offer a mechanical and electrical contact with said conductors (4a', 4b'), wherein coordination between the conductors (4a', 4b') placed under voltage allotted to the roadway portion (2a1) and the contact means of the vehicle occurs via coordinated current connectors, adapted for mechanical and electrical cooperation with respective ones of the conductors (4a', 4b') placed under voltage, characterized in that said first source of power ("I") is capable of generating a feed voltage or power to the motor, and in that a vehicle-related control unit is adapted to control, via an energy distributing and three power sources controlling circuit ("R1 "), the activation of each of the three power sources ("I", "II", "III"), that said control unit is related to a circuit, determining the instantaneous power content of the battery set up ("II", "B"), that said control unit is related to a switching means (92, "R2"), adapted to accept a connection via the external power source ("III", "s1") to said motor during time sequences of an occurring supply power or voltage from the external power source, that said control unit is, during time sequences of a non-occurring supply power or voltage from the external power source, adapted to connect the battery set up ("II", "B") and/or said vehicle-related power generating means ("I", "G") to said motor, that said control unit is related to a circuit adapted to control said switching means ("R2") in dependency of; actual road portion (2a1), adapted speed of the vehicle, the weight of the vehicle, and the actual power allotted to said vehicle via said external power source ("III", "s1"), and that said control means, related to said circuit, is adapted, in determining a predetermined level of power lying below a maximized power content, and in an occurring feed voltage for the external source of power ("III", "s1") connecting the external source of power ("III", "s1") over a switch allotted to said source of power so as to create charging of the battery set up ("II", "B") and/or to create power and energy feeding said motor over said energy distribution and three power sources controlling circuit ("R1").