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What is Battery? How Does It Work?

Battery is equipment which stores electrical power in the form of chemical energy and gives it back in case of need.

Task of the battery gives electric current to the starter motor for the first time to work, to send current to the receivers when the vehicle engine is not working. The other task of battery provides balance between voltage and amperage in the electric system when the engine operates and thus to prevent the receivers from damage as a result of high voltage that the alternator may generate at high speeds.

In such cases, the battery takes over some of the current generated by the alternator and prevents overvoltage. 12-V battery used for the gasoline engines is consisted of six 2-V cells connected to each other in series. In general, each component has positive- and negative-charged plates connected to each other in parallel. Positive plates contain lead dioxide as active material and negative plates contain pure lead as active material. Separators are placed between the plates to prevent short circuit. The separators are made of materials with very little pores to promote chemical reaction. Electrolyte consisting of sulfuric acid and pure water is poured into the battery. The components are connected to each other by lead bridges in series.