How can a car battery catch fire?

1, need an electric car to help charge the lighting. If there is no other vehicle to help, you can also use a charger or cart to start.

2. Aim at the front of two cars and open the hood. Find the batteries of two cars and connect the positive and negative poles with two jumpers. It should be noted that the red line is the positive line, and the black line is the negative line, so you can't connect it wrong.

3. First connect the red positive wire on the rescue vehicle to the positive electrode of the battery on the rescued vehicle, and then connect the black negative wire to the negative electrode on the rescue vehicle and the negative electrode on the rescued vehicle. To ensure the correct connection sequence, do not touch the positive and negative electrodes together to avoid short circuit.

4. Start the rescue vehicle and wait for a few minutes. Then try to start the rescued vehicle. If the startup is successful, the jumper between the two cars can be removed. At this time, it is necessary to remove the red positive wire first, and then remove the black negative wire. Don't reverse it, otherwise it will easily lead to short circuit.