Hey everyone, so I have an iPhone 3GS, had it since day 1. And the battery has been great up until a couple months ago. It used to take an hour of usage for my battery to hit 90% [muisc listening, safari browsing, texting], but now after an hour my battery gets to 77% with LIGHT usage. I turned brightness all the way down, turned off wi-fi, push and 3G and was still having battery issues. I got my phone swapped for a new one at the Genius Bar today and am still having battery issues. Could it be that I need to set up my phone as a new phone instead of restoring from backup?