When does the 12V Battery charging system operate and...
If the car is in EV mode and gas engine not running, the 12v battery is not maintained, even when the car is plugged in. So in the morning the car is dead no matter if it was on or off or plugged in. I have to jump start a fully charged car and push the pedal in neutral just for gas engine to recharge 12v battery - just like any regular car.