From what I can gather, a 2.1 amp dual charger (iPhone/iPad) will charge both iPad1 and 2. Has anyone used a car charger designed for iPad on an iPad 2? The reason that I ask is that at Apples website, the compatibility shows only iPad. I am unsure if thats a generic or specific compatbility. I know the iPad2 is 3 cell, not two but electrical is not my forte.