How to install the positive and negative poles of the battery? What happens if the positive and negative poles of the car battery are reversed?

When we leave the car without starting for a long time, it is likely to cause a serious battery loss. At this time, we have to disconnect the car battery. However, when a car is needed, some friends don't know what the positive and negative pole installation method is, and even think that it is enough to install it in a random location. So, how do you install the positive and negative poles of the battery, and what happens when the positive and negative poles of the car battery are installed reversely?

The method of installing the positive and negative poles of the battery is relatively simple. Just put the positive and negative poles on the corresponding terminals, then install the fastening block and fix it with the fastening screws.. But when we install, we must follow the order of "positive first and then negative". Why do we say that. Because after connecting the negative electrode, it is equivalent to forming a loop for the car. If the positive pole is connected at the end, when the wrench (conductivity) accidentally touches the car metal when fixing the screw, it is equivalent to connecting the positive and negative poles of the battery together. Not only will it cause a short circuit in the car battery, it may also cause "fire" in serious cases.

As for what happens when the positive and negative poles of the car battery are installed reversely, first, after the power is turned on, it will directly affect the normal operation of the multi-purpose electrical appliances in the car, and there is even a certain probability that it will burn out, and the correspondingfuseIt may fuse. Especially the car ecu (travel computer), if it burns down, the maintenance cost is quite expensive. So when you install the positive and negative poles of the car battery, don't put it in the wrong position. I believe you don't want to pay tuition to learn. So, in order to avoid this serious error, let's talk about the method of distinguishing the positive and negative poles of the battery.

How to distinguish battery positive and negative poles:

The most conceivable and easy way to distinguish is to observe the color of the wiring harness. If it is red, it means that the terminal is positive, and black is the negative terminal. Secondly, we can check the logo on the battery, usually there will be a "+" symbol near the positive terminal, and the negative terminal will have a "-" symbol. In addition, there is a difference between positive and negative terminals. The thick end of the pole is the battery positive pole, and the thin end of the pole is the battery negative pole.