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Weird mega fast battery drain (not due to temps or sentry mode)


Jun 4, 2016
Hudson Valley NY
Has anyone experienced unusually fast battery drain while parked? While parked in my garage and plugged in, my Model 3 was losing about 10 miles range per hour. Sentry mode off, temps around 55F in the garage. I called Tesla and they couldn't find anything wrong via phone support, which I found odd. I did a hard reboot of the car (power off via touch screen and turn back on after a few minutes) and then it was fine (I checked the range over the next few hours and it wasn't dropping). Any ideas as to what would cause such drastic drain? I'm a bit concerned just because I fear if I hadn't caught it by checking the range on the app, it would have been lost potentially over 100 miles of range overnight.

I also noticed that on my 20 miles commute it lost about 50 miles of range (energy consumption was normal, around 260Wh/mi) before I parked it; but the loss while parked and plugged in I find more concerning.

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