The list you see under battery use is one of the least relevant and most over-stressed, over-criticized by people when it comes to their battery life.
Look at how your using your phone and how quick the battery is draining, and after a few cycles, how many hours per full charge you seem to be getting with your average use. I've seen so many people complain about awful battery life, and it cracks me up when I hear them say something like "I'm getting 10-12 or more hours on average, but Cell Standby is always on top!! Fix IT!!!"... You shouldn't care what that list looks like if the battery life your getting is respectable. Lots of things influence the list and the things that report on there are not always accurate.
Lol sorry for the rant, but seriously I've gone through this with so many people and its a pet peeve when they want to ignore the facts and just complain about the percentages they're seeing in that dumb list.