Surface Book Battery Life - what are you getting

I am also wondering how all the professional reviewers get 10-1 hours and the normal user gets 5-7.....

Probably because the early reviewed units didn't have Windows Hello and a few other features available (which drown battery life.)

With hibernation enabled instead of sleep, and screen at suggested brightness setting, I'm easily getting 7-8 hours of daily use.

I got my surface book last night, had to do a factory reset to set it up because someone had user name and password already set on it.  had it charging all day at work and brought the tablet part only home, two hours of screen off time and ten minutes of use and it was dead from a 100% charge. Taking it back first chance I get, closest best buy is an hour away......  not a happy camper

If you want to add back options such as max processor state, cooling policy, you have to do so yourself, for example: http://www.eightforums.com/tutorials/51027-power-options-add-remove-min-max-processor-state.html

You can then create your own customized profile. CPU and display are the two main consumer.

But again I think you need give few days to allow the battery program to calibrate. Whatever it reports now is not accurate. Like someone else suggested, leave your laptop on and run down your battery overnight (turning off sleep) and then the number reported will be more realistic.

If it is similar to the Surface Pro 3, it would be located: Settings -> System -> Battery Saver.