MAINTENANCEANDADJUSTMENT143However,inordertomaximizebatterylifeanden-surethatitwillprovidethepowerneededtostartyourvehicleyoumustproperlymaintainthebattery’scharge.Whenusedregularly,thechargingsysteminyourvehiclehelpskeepthebatteryfullycharged.Ifyourvehicleisonlyusedoccasionallyorforshortperiodsoftime,thebatteryismorelikelytodis-charge.Duetotheirinternalcomposition,batteriescontin-uallyselfdischarge.Thedischargeratedependsonthetypeofbatteryandambienttemperature.Astemperaturesrise,sodoesthedischargerate.Ev-ery15°C(59°F)doublestherate.Electricalaccessories,suchasdigitalclocksandcomputermemory,alsodrawcurrentfromthebat-teryevenwhenthekeyisswitchedoff.Combinesuch“key–off”drawswithhottemperature,andabatterycangofromfullychargedtocompletelydis-chargedinamatterofdays.Approx.NumberofDaysFrom100%Chargedto100%dischargedLead-AntimonyTemperature40°C(104°F)25°C(77°F)0°C(32°F)Self-dischargeLead-CalciumBattery100Days200Days550DaysBattery300Days600Days950DaysDischarg-ingAmpereInextremelycoldweatherthefluidinaninade-quatelychargedbatterycaneasilyfreeze,whichcancrackthecaseandbuckletheplates.Afullychargedbatterycanwithstandsub-freezingtemper-atureswithnodamage.BatterySulfationAcommoncauseofbatteryfailureissulfation.Sulfationoccurswhenthebatteryisleftinadis-chargedconditionforanextendedtime.Sulfateisanormalbyproductofthechemicalreactionswithinabattery.Butwhencontinuousdischargeallowsthesulfatetocrystallizeinthecells,thebatteryplatesbecomepermanentlydamagedandwillnotholdacharge.Batteryfailureduetosulfationisnotwar-rantable.BatteryMaintenanceItistheowner’sresponsibilitytokeepthebatteryfullycharged.Failuretodosocanleadtobatteryfailureandleaveyoustranded.CurrentDrainDaysfrom100%Chargedto50%Discharged7mA10mA15mA20mA30mA60Days42Days28Days21Days14DaysDaysfrom100%Chargedto100%Discharged119Days83Days56Days42Days28Daysj
元のページ ../index.html#145