So I learned the AC drains the hell out of your battery in ACC mode the hard way. Was parked in an industrial area around sunset, having fun w my gf in the backseat, AC at 3rd blast, couple minutes in I hear a *beep* noise from the car that Ive never heard before, but the AC still ran and electrics were on so I didnt stop. Finished up and went to crank the car, low and behold it didnt have enough juice to start. R I P, was on our way to a surprise baby shower too. Bless AAA roadside, they showed up like a cop would in a white neighborhood.