What are the methods for jump-starting a car with a dead battery?

2 Answers
DaisyMarie
07/28/25 7:40pm
Here are the specific methods for jump-starting a car with a dead battery: 1. Jump-starting with the help of another vehicle. Below are the detailed steps for jump-starting with another vehicle: (1) When jump-starting a car, you need to use jumper cables, which come in red and black. The red cable is the positive cable, and the black cable is the negative cable. First, take out the red positive jumper cable and connect one end to the positive terminal of the vehicle's battery and the other end to the positive terminal of the other vehicle's battery. (2) Then, take out the black negative jumper cable and connect one end to the negative terminal of the vehicle's battery and the other end to the negative terminal of the other vehicle's battery. (3) During the connection process, avoid letting the cables touch any metal parts of the car body to prevent a short circuit. 2. Jump-starting with an external power source. Once the positive and negative cables are properly connected, you can start the vehicle. After the car successfully starts, remove the jumper cables carefully, ensuring they do not touch any metal parts of the body or other components. Then, let the engine idle or drive for more than half an hour to allow the engine to recharge the car's battery.
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DelMary
08/12/25 12:37am
When my car battery is dead, I use jumper cables to start it. First, prepare a set of high-quality jumper cables and find a normally running car to park nearby, but ensure the two vehicles do not touch. Turn off all electrical devices like the stereo or air conditioning to avoid short circuits. Then, open the hoods of both cars and locate the positive and negative battery terminals. Connect the red jumper cable clamp to the positive terminal of the dead battery first, then to the positive terminal of the working car's battery. Next, connect the black clamp to the negative terminal of the working car's battery, and the other end to a clean, unpainted metal part of the dead car's engine—avoid directly connecting it to the negative terminal to prevent sparks that could cause an explosion. After letting the working car run for a few minutes, try starting the dead car. Once it starts, let it idle for about 10 minutes to recharge before turning it off. Finally, remove the cables in the reverse order of connection. Throughout the process, be careful not to touch metal parts with both clamps simultaneously—safety first. Regularly checking your battery's lifespan is crucial, especially during fall and winter when issues are more likely. It's recommended to test it annually to avoid trouble.
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