Every few months or so, I have replaced one or the other.
Recently, the battery is found discharged after the car is parked for a random period of time. Sometimes the battery is discharged after just two hours, sometimes it will not happen for days.
I am thinking that there is some short that sometimes happens when the engine is turned off and sometimes does not.
The car does have that feature where the blower motor runs for 5 minutes after the AC is used --- maybe it sometimes doesn't stop until the battery is dead?
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