CHAPTER 3_Batteries - Vehicle Batteries

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Chapter 3: BATTERIES – VEHICLE BATTERIES Introduction  The battery is an electrochemical device. It converts chemical energy into electrical energy.  The battery produces electricity to operate the starting motor and ignition system while starting the engine. Discharging - Battery changes chemical energy into electrical energy - Current flow out of the battery Charging - Electrical energy is converted into chemical energy   - Battery stores the energy until it needed Automotive Bat
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  Chapter 3: BATTERIES –  VEHICLE BATTERIES  Introduction  The battery is an electrochemical device. It converts chemicalenergy into electrical energy.  The battery produces electricity to operate the starting motorand ignition system while starting the engine.    Discharging - Battery changes chemical energy intoelectrical energy - Current flow out of the battery  Charging - Electrical energy is converted into chemical energy- Battery stores the energy until it needed  Automotive Batteries  An automotive battery is a type of rechargeable battery that supplies electricenergy to an automobile.  Automotive batteries (usually of lead-acidtype) provide a nominal 12-volt potentialdifference by connecting six galvanic cells in series.  Each cell provides 2.1 volts for a total of12.6 volt at full charge.  Lead-acid batteries are made up of platesof lead and separate plates of leaddioxide , which are submerged into an electrolyte solution of about 35% sulfuric acid and 65% water.  The function of Battery 1. To operate starter motor, ignition system, relays duringcranking of the engine 2. Supply all of the electrical power for the car whenever the engine is not running 3. Help the charging system in providing electricity when demand is above the output of the charging system 4. Store electrical energy for extended periods 5. Act as a voltage stabilizer that smoothen the current through the vehicle electrical system 6. To allow dynamic memory and alarm system to remainactive when the vehicle is left for a period of time
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