When I charge my Incredible with the AC charger, it is fine. But right when I unplug the USB (at 100%), the battery would drop to 92% in 2 minutes with me not doing anything at all. Then I plug it in my CAR charger and when it reaches 100% everything is perfectly fine. The phone still last all day with a lot of usage. But just wondering if anyone knows why the battery drops to 92% so fast?