The odds of a car owner experiencing a dead car battery in his or her lifetime are pretty good. So be proactive and make sure you know how to jump start a car properly!
1) For starters, make sure you always have a set of jumper cables in your trunk. Gloves and goggles would also be good for increased safety.
2) Next, you have to determine that a dead battery is actually the reason for your vehicle not starting. If you turn the ignition and hear the engine cranking, then a dead battery is not the problem. If you turn the key and your vehicle does nothing, then there’s a good chance it’s your battery.
3) Ensure both vehicles are turned off and are facing each other but not touching.
4) Pop the hoods, locate the batteries and then connect one end of the red (positive) jumper cable to the positive terminal on the dead battery. The terminal will have a (+) positive sign and may be red as well.
5) Connect the other end of the red (positive) cable to the positive terminal of the charged battery.
6) Take the black (negative) jumper cable and connect one end to the negative terminal of the good battery. It will be marked with a (–) negative sign and may be black.
7) Then connect the other end of the black (negative) cable to a clean, unpainted piece of grounded metal on the “dead” vehicle.
8) Start the car that is doing the jumping and let it run for two to three minutes before starting the “dead” car. Don’t race the engine but you can rev it for 30 to 60 seconds to charge the battery of the “dead” vehicle.
9) Once the dead car has come back to life, remove the cables in the reserve order in which they were attached and ensure they don’t touch each other or dangle into the engine compartment. Disconnect the black clamp from grounded metal on the dead car, then the black clamp from the negative (-) terminal of the good battery; the red clamp from the positive (+) terminal of the good battery and finally the red clamp from the positive (+) terminal of the dead battery.
10) Drive your jumped car around for at least 15 minutes to recharge your battery and you should be good to go. If the battery dies again, it most likely needs to be replaced.