Charging your cell phone in your car

This might be a dumb question (or have been asked before-- I couldn’t find anything archived), but:

I know that if you’re jumping another car, you’re supposed to rev your engine to help charge the other battery. So, if I’ve got my celly plugged into my lighter, and I’m parked in front of my house trying to charge the damn thing out there because I lost my wall charger, will it charge faster if I rev my engine? Or will it charge at the same rate if I leave the car idling?


The phone will charge at the same rate. See this thread.