Battery Life isn't too bad on my Surface 2, i kinda hoped it would be better than what i get, but ether way.
I still get about a days worth of battery life based on usage.
Same here. For example, beginning with 100%, in 4 hours 30 mins (approx.), the battery icon shows 60%. During this time, I am working on a very long Word document, browser is open with at least two tabs (constantly being used), Mail App open and checking 2 accounts every 30 mins and one account all the time, Wifi on and active, BT on, but inactive (i.e., nothing paired to it). I also have all the Live tiles working. Additionally, I also have at least one app (aside from the ones mentioned above) open - usually it is either Flipboard or the Reading List app.
The only thing is when I am moving around my workplace and while commuting, I have flight mode on.
Interestingly, I have found that if I tether the Surface 2 to my phone (thankfully I have unlimited data and free tethering), the battery consumption is a bit lower - say, by around 5% or so.
Effectively, therefore, I would say that if I needed to, then the Surface 2 would probably last for close to 10 hours, which is not all that bad.