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      04-17-2021, 09:50 PM   #13
drwankel
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Drives: 2012 E92 M3 ZCP, 2021 M340i
Join Date: Feb 2016
Location: Bothell, WA

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To close the loop on this, it was not the SSD.

Finally tracked it down to something simple, an old battery (10 years old).

I had asked for it to be replaced last November when I had some other work done, and I guess it got missed.

The discharge message is simply the voltage of the battery getting too low, and the car trying to save itself. The problems just happen to start when I did the SSD upgrade.

I did a current measurement, and found the car was going to sleep without issue. It sent me through a loop, because I was assuming the battery had been replaced, and the discharge had to be a parasitic draw.

Moral of the story- confirm with data.
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