A portable battery that powers a car is known as an automobile battery. It is made to run a vehicle's starting engine, lights, ignition system, and other electrical parts. Typically, the battery is a lead-acid battery made up of several series-connected cells. Lead plates and an electrolyte fluid are both present in each cell, and it is this chemical reaction that generates energy. The chemical process is turned around when the battery is charged, and the battery then stores electrical energy for eventual use. Types of automotive batteries include DIN, Stop Start and dual purpose.