Okay so i am freaking out here. my battery on my ipod touch is VERY VERY VERY poor lately. A couple days ago, it would show 15% then 80% then 20% in 5 minutes or so. so i calibrated the battery by letting it run down fully and doing a full charge. that seemed to do the trick. but tell me something. before, when the battery was at a certain percentage, and i put it in sleep mode, it would go up about 1 or 2 or 10 percent. for example, battery = 20% while gaming. sleep mode for 10 minutes = 40%. now i play a game, the battery is about 81%. i put it in sleep for an hour, and its still 81%. is this normal? please i get stressed VERY easily so i need replies fast. thanks.