A battery is the most important component of an automobile. Thus, it is crucial to understand how it works. In this article, we will talk about the working of automotive battery systems. A car battery typically consists of six starting, lighting and ignition (SLI) battery cells. Each cell has two grids that are dipped in sulphuric acid. The acid causes a reaction between the two grids. As a result, ions and lead sulphate are produced. Further, chemical reactions trigger the production of electrons. The consistent movement of these electrons around the cell activates the battery terminals to generate electricity. The battery terminals then transmit the electricity produced to the entire car. That sums up how an automotive battery works. Generally, car batteries and motorcycle batteries generate 12 volts of power but it can vary as per the specifications of the manufacturer.