Hi everyone, recently I've been having battery life issues with my iPhone 4S. It started happening sometime after updating to iOS7, but I'm not sure if that's the cause or not. My phone seems to not display the right battery percentage, because it will do strange things, like die at 60% for example, and once I plug it in, it will go back to 95% immediately. It will also drop battery life on a whim, one second it will read 80% and the next it will read 15%. I'm not sure if this is a software issue, but I have restored my iPhone from a previous backup, and I'm still having the same issues. Will replacing the battery in my iPhone fix my problem, or should be I trying something else? Thanks.