What is the correct way to jump-start a car with a dead battery?

[Reyn]

The correct way to jump-start a car with a dead battery is: 1. Position the working car close to the dead car, with their front ends facing each other; 2. Open the hoods of both cars and take out the jumper cables; 3. Locate the batteries of both vehicles, attach the negative clamps to the negative terminals of both batteries, and attach the positive clamps to the positive terminals of both batteries; 4. Start the working car, let it charge for a few minutes, then start the dead car. The functions of a car battery are: 1. When starting the engine, the battery supplies power to the starting system, ignition system, and electronic fuel injection system; 2. When the engine is off or idling at low speed, it powers the car's electrical devices; 3. When the generator's output is insufficient, it provides power to the electrical devices; 4. It mitigates voltage surges in the electrical system, protecting the car's electronic equipment; 5. It stores excess electricity generated by the alternator.