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After downloading the 10.1 operating system last week, and through today even after downloading 12.1, I'm experiencing battery drain of 30+ miles per day. Never had that happen before. Sentry mode not on, climate control off.
I hear a small hum from the frunk area but can't tell the source - obviously some system burning through the volts doing something, but I have no idea. (It's a LR rear wheel drive only, so no front motors to blame.)

Thoughts?

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