How to Jump Start a Dead Car Battery

We all know how frustrating it is when you just get off work only to find out that your car battery is dead. It’s especially annoying when you’re in a rush to be somewhere, but your engine just won’t start. Almost every driver will encounter this problem at least a couple times in their life.

That’s why it’s so important for every driver to know how to jump start their vehicle. Jumper cables are an essential part of any road trip emergency kit – here’s our guide on how to use them without electrocuting yourself…

how to jumpstart a dead car battery

Find somebody with a functioning car and have them park hood-to-hood with you. If you’re in the middle of tin-buck-too, you may have to call a friend or family member to come save the day. Both of you should make sure your cars are in park so that you don’t end up going bumper-to-bumper.

Open the hood to both cars, and find the batteries and battery terminals. The two terminals on each battery will be covered in red or black, with a + or – sign on top.

Now you can clamp on the jumper cables. WARNING: Make sure both clamps don’t touch each other while you’re doing this. This may cause death or serious injury.

Follow this order:

  • First, connect the red, positive cable clamp to the positive (+) battery terminal of the dead battery.
  • Next, attach the red, positive cable clamp on the other side of the jumper cables to the working vehicle’s positive (+) battery terminal.
  • Connect the black, negative cable clamp to the working battery’s negative (-) battery terminal.
  • Finally, attach the other black, negative cable clamp to an unpainted, metal part of the car.

Start the working car, then wait about 10-15 minutes before trying to start the car with the dead battery. Once the dead car is running, you can disconnect the jumper cables, starting with the black, negative cable clamps. Don’t let the clamps touch each other when they’re still connected to a vehicle.

After you jump start your car, you should drive for at least 10-15 minutes before turning it off again, so the battery can build up a charge. Otherwise, you’ll probably need another jump start the next time you try to start your car.

Do you need to jump start your car battery too often? If your battery seems to be losing its charge, it’s probably time to replace it with a new one. Head over to the Direct Auto Mall service center in Framingham, Massachusetts for a replacement car battery!