Android has always been weird like that. One day I might get to work and have 97% left, the next I will have 85% left, doing exactly the same thing every day. It must be something in individual apps which makes them maybe use more RAM, or stay on too long, or something else who knows. I've always found iOS to be much more consistent in battery use, probably because they are much more strict with how apps act.
[doublepost=1472069716][/doublepost]88% left with 27 minutes SOT and about 5 hours since it's touched a charger, not sure if that's improving or getting worse. Says I have 37 hours 24 minutes left with no power saving mode on, seems kind of optimistic.