Day together, my father called me yesterday, his scooter is broken. As it looks, he has too often jammed the battery from time to time and now the cable shoe for the minus pole is off, however something happens. Now the thing stands on the front door, 2km away from a workshop. I now think about what is best done. a) a cable from the minus pole to the frame. What cross section would you need? b) hold mass cables to the battery, start, ground cables to the side p) I used to drive tens of kilometers without a mass cable, because it broke down (in the car) during the ride. When it was turned off, it was called for total blackout, but would that be harmful for alternator & co.?