I don't get why ibs doesn't see a drain overnight through CA. It's designed to see loads of 70ma (iitc) and report that to the dde when you start up (after battery shutdown reset) .
Again these cars are done badly because a load that brings the battery to danger zone overnight would be way more than 70ma or whatever ibs reports as maximum safe drain!
You got it reported as a drain, but really it was just looking at voltage and tripped on that, despite it having the ability to read tiny currents and tell you. It's programmed badly and the e60, etc don't have this issue.
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