Just wondering why it does this? I've been having terrible battery life. The phone is also now exactly one year old. Is the battery on its way out? I went to the Apple store and got a generic response. Apparently I shouldn't keep plugging it in when it isn't dead. This causes the battery to miscalculate the remaining charge. I know that continually plugging it in doesn't harm the battery, but is it causing it to incorrectly read the remaining charge?