Today I am running a "burn-in" test of the battery, which basically means I'm keeping the screen on as much as I can. I'll edit this post to add checkpoints in case anyone is interested (and so I don't spam-bomb the thread with posts)
Settings:
Battery saver off.
Screen auto (for most of the test, see below for full-bright test)
GPS, mobile, WiFi: on (was on WiFi most of the time, 2-bar signal)
Bluetooth, NFC: off
Apps (at least those that I know pull data): MobileIron, TouchDown, usual Google suite including lots of activity on G+ and Hangouts, WeatherBug set to update hourly
ALL sync options on.
ActiveDisplay, assistant, all features are on.
Battery at 61%
6h 39m on battery
Screen: 70% 3h 16m
used mostly on WiFi, except about a half hour of being used as a WiFi hotspot on LTE
Battery at 53%
8h on battery
Screen: 73% 4h 22m
All additional time since last checkpoint on WiFi.
Battery at 45%
9h on battery
Screen 75% 5h 22m
All on WiFi since last checkpoint, as you can see screen was on the full time. Tried to keep it on a white screen mostly to maximize drain, but still on auto-bright.
That's 8% drain with one hour of screen on. Turning screen brightness up.
Battery at 34%
10h on battery
Screen 79% 6h 18m
(NOTE: since last checkpoint I turned screen from AUTO to full-on superbright, so in just under an hour I used 11%)
Final check-in:
Battery at 1%
12h 22m 15s on battery
Screen 76% 7h 13m 37s (about 1h 15m was on super-bright, the rest on auto and probably ran about 40%)
I must say that I've never had a phone that has had 7 hours of screen time before. Sure, the battery lasted "only" 12h 22m, but that screen-on time is IMPRESSIVE.