I got a Galaxy s3 from T-Mobile yesterday, and when I got home the battery was around 50%. I had to leave, so I didn't get a chance to charge it. I got home, and it was around 20%, but I figured that was normal because it was brand new and I had downloaded some apps. I charged it over night, and I woke up to it being 100% battery. Since then, I have connected to wifi, searched for a case on ebay, deleted multiples of contacts, and downloaded one app. The battery is now 87%, annd it has only been maybe an hour and a half. Should I be worried there is something wrong with it?