Battery lost 8% overnight sitting in the cold

[newcarbuyer123]

My model Y battery has never lost charge sitting for hours or even days.
Then on a recent trip I charged at a supercharger to 85%, drove 1 mile, and it sat in the cold overnight. Around 30 degrees F.
Next morning, it's 76%. Hmm....
Next night, same thing. Lost about 8% sitting overnight.
Climate was not on.
Anybody have similar experience in cold? Or is something going wrong with my battery?
Will see if it happens again in warmer temps....

 

[FatherTo1]

This is absolutely normal. Cold weather affects battery performance. If you moved the car into a warmer enclosure then you would see the percent climb back up. Cold weather affects the chemistry and reduces range and this is what you're observing. Even in my garage I've seen battery percent increase from the cold morning to warmer afternoon without any charging. It is like your own muscles, they don't work as well in near freezing temps until the body warms up.

 

[tstolze]

Combination of cold and Sentry Mode is my guess.

 

[jcanoe]

Do you have Sentry Mode active when parked at your home location? That could account for the loss of charge.

 

[newcarbuyer123]

f cold and Sentry Mode is my guess.

Do you have Sentry Mode active when parked at your home location? That could account for the loss of charge.

Must be the combo of cold temp and sentry mode as others pointed out too. I'll turn it off next time. Thanks for the help.

 

[LoudMusic]

I was losing about 12%/day with sentry mode even in ~60 degree overnight temps.

 

[tstolze]

Must be the combo of cold temp and sentry mode as others pointed out too. I'll turn it off next time. Thanks for the help.

Our M3 loses 2-3% each day while my Wife has it at work with Sentry Mode on, torn between leaving it on and turning it off while she's at work.

 

[LoudMusic]

Our M3 loses 2-3% each day while my Wife has it at work with Sentry Mode on, torn between leaving it on and turning it off while she's at work.

If she doesn't need the %s for the commute and you're able to charge at home I'd let it run.

 

[jeffbco]

My MY sat in my garage (Sentry turned off), temps in the low 50's. SoC at 90% when I left, still 90% when I returned 7 days later.