Real Cases
A battery died only every few months
A driver found the battery dead on occasional mornings, sometimes months apart.
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AI4Car / How it works
Battery & electrical
Charging, voltage, wiring and electrical symptoms.
All hashtags
All hashtags#electrical41#battery15#accessoryafterinstall6#trailerlightsintermittent6#batterydrainovernight5#chargingsystem5#chargingvoltagevaries5#fuseblowsagain5#groundconnectioncorrosion5#headlightsdimidle5#batterydrain4#maintenance3#voltage3#diagnosis2#parasiticdraw2#alternator1#cabinfan1#codes1#coldstart1#coolingfan1#ground1#intermittent1#misfire1#nocrank1#OBD21#overheating1#P03001#P05621#P05631#P06201#radio1#startstop1#starter1#storage1#terminals1#warninglight1#warninglights1
Real Cases
A Corolla's battery drained despite a new battery
A 2005 Corolla twice fell to around 8.5 volts after sitting.
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Real Cases
An Outlander's ignition-off draw needed isolation
An Outlander owner asked about a battery draw after shutdown.
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Real Cases
P0300 only on the first cold start
One driver reported rough running and a P0300 warning on the first start of the day.
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Real Cases
A Taurus stayed silent after battery and relay work
A 2002 Taurus had started only intermittently and then stopped cranking altogether.
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Real Cases
A truck's cooling fan stayed off as temperature rose
A truck's temperature rose at idle while its radiator fans remained still.
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Real Cases
A Zafira charging ground looked like battery drain
A 2014 Zafira owner saw high current after parking and also suffered random battery failures, sometimes while driving.
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