Sorry, I can’t get google to understand my question. But there it is. Have there been studies on this, or have you turned off your car at work, outside at 25 degrees, with 74% charge, only to return to it 9 hours later with 68% charge? Thanks in advance.
Above freezing, not much, but if it gets really cold the car should keep itself from damage. Not to worry, 110V 10 amp will either charge or break even.
EVs typically can’t easily be “completely powered off”.
They all seem to wake up and spin up pumps now and then.
The BMS in mine, when really cold (which isn’t that often where I live) will show a “lost capactiy” section of the battery bar graph, along with a snowflake icon next to it, indicating temperature-related loss of capacity.
I’ve never seen it use power to keep itself warm, but it does come with advice to keep it plugged in during cold weather.