This isn't about the 4S's battery life, we all know that's an issue. I got the 4S the day it came out so I've had it about a month and starting earlier this week I noticed something weird with the battery. I will charge it at night before I go to bed and let it charge all night while I'm alseep. In the morning it says 100% charged but I when I unplug it, it drops down to 98% right away. It just started a couple days ago. I didn't think too much of it but this morning instead of 98% it said 97%. Anyone else having this issue? Anyway to fix it?