Batteries

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Composed of a series of lead plates submerged in a 35% sulfuric acid/65% water solution, your 12-volt battery houses a chemical reaction that produces electricity which is channeled into your vehicle's electrical system. When your car's engine is off, the battery supplies electricity to all of the electrical system components, including the essential power required to start your vehicle, and in periods of high demand, the battery also supplements power from the charging system.