f-stop
Active Member
Thanks @paulkva and @SomeJoe7777 for your replies.
Called service this am and got an appointment for later this week to replace the 12V battery. They told me I should be fine if I keep the car plugged in at night, and don't go for >1hr drives or long road trips - fine for me since my typical daily drive is short and I always plug in at night.
But just a thought - if these 12V battery failures are common or frequent/almost annual, why don't they proactively replace them at annual service time? I had my annual service not so long ago and it would have been nice to avoid another SC visit so soon (though I must say that the local SC personnel are always friendly and helpful)
p.s. Just noticed this comment:
Called service this am and got an appointment for later this week to replace the 12V battery. They told me I should be fine if I keep the car plugged in at night, and don't go for >1hr drives or long road trips - fine for me since my typical daily drive is short and I always plug in at night.
But just a thought - if these 12V battery failures are common or frequent/almost annual, why don't they proactively replace them at annual service time? I had my annual service not so long ago and it would have been nice to avoid another SC visit so soon (though I must say that the local SC personnel are always friendly and helpful)
p.s. Just noticed this comment:
I started noticing larger vampire loss recently, e.g during a 2 weeks away on vacation this month I see that the car was losing about 14km rated range per night just sitting (and plugged in). The weather was quite cold while I was away so I originally attributed it to that. By comparison last year I was seeing vampire loss more like about 5~8km/day max. So maybe there's something there with this idea of correlation between a weakening 12V battery and increased vampire loss...I personally believe that if the 12V is weakening, then the HV battery must make it up by causing more charge cycling of the 12V.... resulting in larger vampire losses. [...]