hi i just bought the ipod touch 4g about 2-3 weeks ago. i remember the website stating that it takes about 2 hrs to charge from 20% to 80%. i even downloaded battery doctor and when i did my full charge cycle and the timer said 1 and a half hours left, it only took about half and hour. my battery charges really fast and i think that means that my capacity is lower, please help on this and i am new to this forum so tell me if im doing anything wrong or if you need more details.. thanks!!