Start off with both engine bays open and carefully identifying the positive and negative terminals of the batteries, making sure that I connect it properly later on. I then detangle the cable and lay it on the floor, making sure that the jumper cable ends don’t touch each other. Now that everything is set and I know what needs to be plugged, the jump-starting can begin.
Rule of thumb: Positive connects with positive while negative connects with negative.
How to put on the jumper cables:
- Connect the positive cable end to the dead battery.
- Connect the positive cable end of the donor battery.
- Connect the negative cable end of the donor battery.
- Connect the negative cable end to a grounded part or piece of metal like the engine or strut tower of the car with the dead battery.
This is by far the safest way to connect the cables because it avoids causing sparks, especially near the battery where the chemicals in it are dangerous. Now that all the cables are connected, it is time to turn on the donor car and let it run for around 2 minutes to charge the dead battery.
If it doesn’t work, you let the car wait for 5 minutes to charge the dead battery even more. In the event it still doesn’t work and you have someone that can help you, let the donor car rev at around 2,000 rpm, then try starting the car with the dead battery.
Once the jump-start is successful, you can remove the cables in this order:
- Remove the negative cable end from the dead battery car
- Remove the positive cable from the dead battery car (make sure the ends don’t touch)
- Remove the positive cable end from the donor car
- Remove the negative cable end from the donor car
Now that you are able to jump-start your car, you can head out where you need to go. If the car battery dies out again though, it means that your car battery will need to be replaced.