I accidentally touched the positive and negative poles of the battery. What will happen if the positive and negative poles of the car battery are connected incorrectly?

Momentary touch has little effect, the contact parts are burnt, and the battery is damaged over time.If there is an insurance device, the insurance may be blown to avoid loss, and there is nofuseWhen the short-circuit time is longer, the wire may be burned and the battery may be damaged. Therefore, the wires must be connected reliably, insulated, and the battery electrical connection devices must be reinforced to prevent accidents.

What are the consequences of wrong connection of the positive and negative poles of the car battery:

1. For cars with a computer board control system, the computer board is always energized. Once the power supply is reversed, this type of circuit is the first to be burned out, and the sensors will also be affected;

2. There are two possibilities to burn out the circuit, namely, burn out and burn out short, burn out, then, "this is over", burn out short, will continue to burn other electrical appliances until the fuse is blown;

3. Burning the circuit is a momentary matter. When you see smoke and other phenomena, it may have caused a lot of electrical damage, which cannot be predicted;

4. The inspection procedure generally starts with the fuse, then, check the battery voltage, install the battery correctly, turn on the electricity, observe the instrument display, switch electrical appliances such as lights, horns, alarms, radios, lift windows, etc., start the car to observe the display, and turn it on Air-conditioning, etc., during this process, if there is a fault, it needs to be overhauled, usually the computer board and sensor are most likely to be damaged;

5. Because the battery is powered off, it will cause data loss, so you need to go to the 4S shop to initialize.

The service life of a car battery is generally about three years, and some car owners may need to replace it in two years because of improper maintenance. Therefore, when the car owner parks the vehicle for a long time, it is best to power off the battery, and you can directly remove the negative wire, so as to avoid static leakage of the battery because the battery is not used for a long time. The battery power is too low and not charged in time will also cause certain damage to the battery.