So after fighting to get Ubuntu 13.10 installed along side Windows 8 in (u)efi mode, I am left with one strange issue.
If I boot the laptop while not plugged into the wall no battery level applet is shown. Once I plug the laptop into the wall the icon will appear, and then if I unplug all works fine. acpi shows nothing either.
It seems like no battery is reported to the system even though its clearly there.