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.