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Car Battery A car battery is a type of rechargeable battery that supplies electric energy to an automobile. Usually this refers to a SLI battery (Starting - Lighting - Ignition) to power the starter motor, the lights and the ignition system of a vehicle’s engine. This also may describe a traction battery used for the main power source of an electric vehicle. Automotive starter batteries (usually of lead-acid type) provide a nominal 12-volt potential difference by connecting six galvanic cells in series. Since the cells naturally produce about 2.1 V, the actual voltage is roughly 12.6 V. Lead-acid batteries are made up of plates of lead and lead oxide, which are submerged into an electrolyte solution of 35% sulphuric acid and 65% water. This causes a chemical reaction that releases electrons, allowing them to flow through conductors to produce electricity. As the battery discharges, the acid of the electrolyte reacts with the materials of the plates, changing their surface to lead sulphate. When the battery is recharged, the chemical reaction is reversed: the lead sulphate reforms into lead oxide and lead. With the plates restored to their original condition, the process may now be repeated. |
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Sutherland Shire Car Batteries Business Directory and Community Guide |
