I got my new Incredible today and charged it with wall charger but did not charge to 100% and used it during the day while charging off and on. I never got to 100% and then when I did not charge for a couple hours at night the phone went to 4%. I turned it off and now when I plug into charger nothing happens (no light comes on or anything else). Is my charger just defective or did I need to charge to 100% before I could ever use it and now it will not accept a charge???