In my iPhone 4 there is a usage section which tells you how many hours you have used etc etc. But I can't seem to find the option on my iPad 2 and I'd like to find out because I purchased this on Friday and it was at 94% and I think I used it a total of 4-5 hours. Playing games, reading a few chapters of a book and web surfing. But today I had to plug it in because it reached 29%. In 3 days? Does thus sound accurate to you all?