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Published byBathsheba Fleming Modified over 9 years ago
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CBC Automotive n Operation n Service n Diagnosis Battery
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CBC Automotive Battery n Source of Energy n Reserve while running n Stabilizer
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CBC Automotive Battery n Converts chemical energy into electrical energy
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CBC Automotive Cells n # of cells n Cell voltage n How cells are connected
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CBC Automotive Chemistry n During charging and discharging
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CBC Automotive Charged n + = Pb O2 (Pure lead peroxide) n - = Pb (Sponge lead) n Solution = H2 SO4 n Solution of Sulfuric acid & water
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CBC Automotive Discharging n + = PbSO4 n - = PbSO4 n Plates turn to Lead Sulfate n Solution = H2O
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CBC Automotive n Why do batteries freeze?
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CBC Automotive Reversing the cycle again
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CBC Automotive Battery Gassing n During discharge n During charge
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CBC Automotive Batteries do blow up
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CBC Automotive Precautions n Remove grd. term. first n Connect grd. last n Jumper/charger on block n Corrosive
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CBC Automotive Precautions n when jumping a battery n when using a charger n when disconnecting a cable n when using any flame source
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CBC Automotive Construction
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CBC Automotive n Positive plate n Negative plate n Separator n Grid
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CBC Automotive Conventional Battery
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CBC Automotive pluses Maintenance Free - pluses n Larger plates n Resistance to overcharging n Longer shelf life n Higher cold cranking rate
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CBC Automotive faults Maintenance Free - faults n Grid growth - hot n Can’t take being deep cycled n Low reserve capacity n Drain quick with a parasitic load n Shorter life
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CBC Automotive Low maintenance
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CBC Automotive Hybrid Batteries n Calcium in the neg. plates n Antimony in the pos. plates n Allows deep cycling n Marine n Golf carts etc..
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CBC Automotive Recombination n Has gel instead of liquid n Result - no gassing n higher cell voltage.1 n cold starting
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CBC Automotive Terminals n Post n leakage n Side Terminal n “L” terminal n specialty and import
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CBC Automotive TemperatureTemperature 0’ = 40%0’ = 40% ChargeCharge Plate areaPlate area ImpuritiesImpurities GassingGassing
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CBC Automotive Causes of battery failure
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CBC Automotive failure Causes of failure n Electrolyte level n Overcharging n Undercharging n Corrosion n Cycling n Temperature n Vibration
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CBC Automotive State of charge testing
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CBC Automotive Hydrometer n with float n with balls
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CBC Automotive Open Circuit Voltage Test n Sealed batteries n Remove surface charge n 12.6 = fully charged n 12.4 = 3/4 charged
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CBC Automotive Must be 3/4 charged before doing a battery capacity test A battery Must be 3/4 charged before doing a battery capacity test
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CBC Automotive Check the temp. Before load testing - Check the temp.
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CBC Automotive Before load testing you must know what the battery is, or should be rated at The right battery for the vehicle
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CBC Automotive Ratings n Ampere-hour rating n Cold cranking rating n Reserve capacity rating n Watt hour rating
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CBC Automotive Capacity Test Three times the ampere-hour rating Formula for load testing
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CBC Automotive Cold cranking amps divided by 2 Formula for load testing
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CBC Automotive Three minute charge test sulfated Tests for a sulfated battery n 40 amps for three minutes below n Should be below 15.5 volts
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CBC Automotive Battery Drain test or System drain test everything off n Ammeter in series at the battery post with everything off n GM.1
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CBC Automotive Battery leakage test n Volt - at negative post n Volt + across battery n under 10 volts
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CBC Automotive Fast / Slow charging
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CBC Automotive Battery cleaning
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CBC Automotive That's all folks
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