What is the correct method for jump-starting a car?
2 Answers
The correct method for jump-starting a car is to open the engine hood and locate the battery. Connect one end of the red jumper cable to the positive terminal of a functioning battery in a working vehicle, and the other end to the positive terminal of the dead battery. Below are some relevant details about car batteries: 1. Lifespan: The average lifespan of a car battery is around two years; 2. Maintenance: With proper maintenance, it can be extended, with the best lasting up to four years. Signs of a dead car battery: The car is difficult to start after being parked for two days, or the car feels noticeably heavier when driving with the air conditioning on. 3. Precautions for car batteries: Modern car batteries come with a protection function that reserves the minimum power required for ignition. If you turn the key without starting the engine and listen to music or turn on the lights, the battery can last for about an hour.
I've had my battery die several times before. When helping someone with a jump start, remember the key sequence: First, ensure both vehicles are turned off and parked on level ground. Connect the red cable to the positive terminal (marked with a + sign) of the good battery, then to the positive terminal of the dead battery. Next, attach the black cable to the negative terminal of the good battery, and then connect it to an unpainted metal frame under the hood of the dead car (avoid connecting directly to the negative terminal to prevent sparks that could cause a fire). Start the engine of the good car and let it run for a few minutes to charge the battery, then attempt to start the dead car. Once successful, remove the cables in reverse order—first disconnect the black cable from the dead car, then from the good car, and finally remove the red cables. This helps prevent short circuits or explosions. Always wear insulated gloves and safety goggles, as battery acid is dangerous. After the jump start, let the car run for about half an hour to recharge. Regularly check your battery's lifespan to avoid last-minute troubles.