Hey all, first iPhone so I apologize if this is a dumb question. I have been having some really terrible battery life (even compared to some of the worse-off posts in other threads) and want to take my phone in, hopefully for an exchange. Now, I bought it through Apple.com (Sprint 64GB White) along with Applecare Plus, but the nearest apple store is about two and a half hours away. If I take it into a sprint store would they be capable of exchanging it or do I need to go directly to apple since I bought it from their website? My main concern is that if I go through the sprint store they will somehow screw up my Applecare Plus because unless I am mistaken it is tied to the phone's serial number. However, a 5 minute trip to the sprint store is much better than the 2.5 hour trip to the apple store. Any input or advice would be greatly appreciated.