Inactive Recognized Developer
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Olympus Mons, Mars
There are tons of factors that will affect battery life. Thing like;
Signal quality (as a former repair tech, I've seen poor single kill a battery in a matter of hours on multiple phones +200hr standby phones)
Apps running in the background (Skype + Facebook kills my wife's 10day standby phone in less than 12hrs),
Apps syncing (Gmail and other apps are set by default to constantly sync)
Shake Screen On apps force phones to never sleep and on the TS it runs at 1GHz with both cores at all times with any screen on apps I've tried.
On my bench tests I get about 20hrs of standby with cellular on with G+, GMail, Hangouts, Drive, Calender, Keep, Now, Picasa, Google Voice left alone to sync as they please. This also includes a baby activity tracker that syncs over 4000 entries every hour.
Reread and noticed you had WiFi AND cellular on. If wifi is on but not connected to a network it constantly scans for networks which kills a battery. The same goes for cellular.