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.
No, the cold itself does not sap the charge by itself somehow. BUT a colder battery will be able to output less energy due to higher internal resistance (more energy lost to heat when discharging). Some cars bms are advanced enough to be aware of that and therfore display a smaller number.