hey like all 5th geners, i left my headlights on again... :| anyway. i was wondering when the car is recharging does it charge any faster if you're driving at 3000 vs 1000 etc. also, hypothetically if you had your car on and was just rolling downhill at 60mph, would it automatically charge your car because the engine is in gear and turning at 3k rpm or do you need to gas it to actually charge better?