My battery doesn't seem as good as it should be topic

I'm coming from a Nexus 4 and definitely enjoying battery improvements from the Note 4. Having said that, it seems this battery drains more quickly than I expected... especially when I'm not even using it. I do have location services on, as I did on my Nexus 4 - but it seems I *almost always* have the little location icon blinking in my notification tray

I took some screenshots which show the drop in battery, and at the end when I'm at 12% it was only 2h45m of screen on time
https://www.dropbox.com/sh/o0v6vwb6z...8WQ9ErGva?dl=0

I'm not aware of any way I can actually dive into Android System/Android OS to actually find out WHAT'S causing this battery drain...

Am I expecting more than this phone can deliver? Anything I can look into or change to improve battery life?