I got out of work today and it was about six degrees Fahrenheit. I started my car and the motor came on instantly. I knew that would happen. What surprised me is that while I was waiting for the heater to warm up I had an idea. I hit the gas pedal, honestly not expecting a damn thing, but to my surprise the motor reved up more. Not like a normal ICE car but it did rev up higher. I was able to make it rev up enough to start putting electricity back into the battery. I didn't know you could do this. So for any of you who didn't know now ya do.