Newbie question: If the car can automatically generate electricity after it is started, then why doe

This should be because there is a generator in the car, which is driven by a belt. As long as the car is started and running, the generator generates electricity, which is used to power the energy-consuming elements of the car. If the battery ages, it will no longer have the capacity to store electricity, there will be a power outage situation. When the car loses power, it will not start. There will be a slow sound when starting up, as well as a clicking sound. The lights don't turn on and the speaker doesn't ring or emits a slight sound, all of which are symptoms of a low battery.