Discover the main causes—parasitic drain, faulty alternators, defective batteries, door lights, and infotainment issues.
You don't want the battery sitting around for extended periods near 12.0v
But do note the audi charging system only targets 85% soc before switching to float
This is a safety decision to.
The battery has been replaced several times over the years and about a year ago i installed a 120amp alternator (new from fcp)
This is not a primary driver, so it hasn’t bothered me, but as the.
If your vehicle is drawing power from the battery and all of the lights and other electrical components are off, you might have a parasitic battery drain (or draw)
Luckily, you can usually find the cause of a parasitic draw yourself
Start by connecting a digital multimeter to the negative battery.
Audi said they tested my old battery and it kept failing a charge test (that battery was less than a year) so they replaced it for free under the battery warranty (my car has 129,000 miles so that.
The guide below explores several common causes of parasitic battery drain and their corresponding catalysts
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