Lol, do you use your phone normally? Like do you use Twitter/Facebook/other apps? I can honestly say I've never got two days usage out of a charge before....
Don't have any of that stuff, no facebook, twitter, instagram, hangouts turned of, google now turned of.
As said that was with minimal usage, with heavier usage, I would get over 1 day with about 3-4 hours on screen time.