Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/0/00/Allumage_batterie.svg/1200px-Allumage_batterie.svg.png
Schema electrique allumage rupteur
Source google image: https://upload.wikimedia.org/wikipedia/commons/thumb/0/00/Allumage_batterie.svg/1200px-Allumage_batterie.svg.png