I have been using my phone slightly more than I normally would since its brand new, and I have been wanting to tinker with it. After starting to use it at around 7:00 AM, and now being almost 4:30, the battery is at about 55%, which is probably at about what my old phone would be at by this time. I really don't think its all that bad, I could easily go until I go to bed without having to charge it up at all, and still have some left over for tomorrow.