So I'm having big trouble with the battery life on my 2G. It only lasts about 4-5 hours when browsing safari or using apps fully charged. I've basically had it since it first came out and I have to admit I haven't treated it that well in the past. I used to plug it in over night even if it was at 80% just to have enough battery for the next day. I don't know how the battery in the device works but is it possible for it to just "decease" over time? Is there any way I can fix it? I've tried draining it completely before charging it again for about 2 months now and I'm not seeing any difference. I also heard that it might be an OS 4.2.1 issue... Thanks in advance.