Hey all, first post here - kind of a classic Car Talk dilemma: my wife now drives what was originally my 2005 Honda Civic from '05-'10. In the last 3 or so years since she’s been driving it, the Civic has developed a tendency to die on her at inopportune times. A quick jump always fixes the problem but I never, ever had this problem myself when I was driving it and I’ve had the battery tested at AutoZone twice with both techs telling me the battery was in great shape with cranking amps well above its rating. I’ve offered to just buy a new battery and eliminate the issue but the “it’s fine” report from AZ has me puzzled.
I have noticed that corrosion tends to build up on her positive battery terminal very quickly and I suspect she’s getting some drain due to that but I’m stymied as to why it happens. The only thing (and its a stretch) that I can think of is she has a habit that her father taught her of cranking the heat, the defroster AND the A/C in her car when it’s cold out. Normally I wouldn’t think this would make a difference but I wonder if there is somehow condensation developing in that tiny little Civic engine bay as a result?
I’ve asked her not to do it and see if the situation improves but old habits die hard. The battery does tend to come up dead (of course) more in the winter but it’s not an exclusively cold weather situation. Anyway, after jumping her car in single digits this morning before dawn I am ready to admit defeat and just get a new battery but figured I’d throw it out to the many voices here.
Thanks in advance!