How to use jumper cables
Suddenly it happens. The battery is dead and the car will not start. It may be because it is too cold, or you forgot the lights or radio on in the car. Whatever the reason, it is a problem that can be easily solved with the help of a pair of booster cables – we recommend that you always have a pair of Tüv/GS approved cables with you in the car.
Guide
- Place the booster vehicle as close as possible to the car with the dead battery, the cables must reach the battery, but the cars can’t touch each other.
- Start the car with the strong battery. It is important that the car is running when you connect the booster cables. The weak battery might otherwise drain the working battery.
- First connect the red cable to the fully loaded positive battery pole. The other end connects to the weak battery positive pole.
- Then connect the black cable to the loaded battery. The other end of the black cable connects to an unpainted metal surface (grounded part) of the engine in the weak battery car, as far from the battery as possible (alternatively it can be connected to the negative pole).
- Leave the car running for a few minutes. After a while, try to start the car with the weak battery.
- Once the car has started, disconnect the cables in the reverse order. Start with the black wire on the weak battery and then the black from the strong battery. Then the red wire from the weak battery and finally the red from the strong battery.
It is normal that there may be sparks when you remove the cables.
