How do you jump start a car with jumper cables?

by Andrew Automoto21. November 2013 09:59

Before you try jump starting a car you need to find out if your battery is the reason your car isn’t starting. If you turn the key in the ignition and hear the engine cranking then the battery isn’t the problem. However if you turn the key and the car does nothing and you can see that your headlights and dashboard are dim, then there’s a good chance you have a dead battery.

  1. Firstly you will need a set of jumper cables and another working car. Make sure both cars are turned off to begin
  2. Position the second car (the one helping) so that your front bumpers are facing each other, put them as close as possible. Turn all head lights, interior lights and emergency lights off, and disconnect any electronics plugged into your car example; GPS, Charger etc.
  3. Connect one of the positive (red) jumper cable to the positive terminal on the dead car battery, and then attach the other red jumper cable to the positive (red) on the good battery.
  4. Then connect the negative (black) jumper cable to the negative terminal of the car with the running battery, and then clamp the other negative (black) cable to a clean unpainted metal surface under the hood of the dead car. This can be clamped on to something as small as the head of the bolt located nearby. (DO NOT connect the negative cable to the negative terminal of the dead car’s battery, because it may even blow up the whole car!)
  5. Start the car that’s doing the jumping and allow it to run for about 2 or 3 minutes before turning the key in the car with the dead battery. If the car with the dead battery still won’t start make sure you have connected the jumper cables in the proper order.
  6. When disconnecting the jumper cables while both cars are running there’s no specific order to do so, just be sure you don’t let the red and black cable touch each other while the other ends of the cable are still connected to the battery.
  7. If your car starts, don’t shut off your engine straight away, let it run or go for a drive for at least 15-30 minutes to recharge your battery.

 ‘The information provided in this article is for general advice only.  It is not intended for instructional use.  Use of the information is at your own risk.  We recommend you seek the advice of a trained professional.  ’