Not sure on the battery life, but check out the HP ZBook G3. We have the G2 at work and it's quite nice. It's got a lot of horsepower and I can go 4-6 hours on

Not sure on the battery life, but check out the HP ZBook G3. We have the G2 at work and it's quite nice. It's got a lot of horsepower and I can go 4-6 hours on battery. The power brick is heavier than my own little 11 inch personal machine. It is a workstation line, not an ultrabook line.