I just upgraded from a Surface 2 to a Pro 2 after having so many boot up issues with the former. I thought the battery life was rather poor with it, but I can't believe just how poor it is with this new Pro 2! I'm barley getting 4 hours or so. Is this really the story here with the Pro2's? I am hoping the battery life improves after a few charge/discharge cycles. This would almost render it useless for my applications.