I had similar problems with battery life. Take a look at TLP [1] - my battery life improved dramatically after installing it (mostly on default settings). [1]

I had similar problems with battery life. Take a look at TLP [1] - my battery life improved dramatically after installing it (mostly on default settings). [1] http://webcache.googleusercontent.com/search?q=cache:XXVnP0YgIfAJ:www.kianryan.co.uk/2013/07/x1-carbon-ubuntu-13-04/+&cd=1&hl=en&ct=clnk&gl=uk http://webcache.googleusercontent.com/search?q=cache:XXVnP0Y...