This blog has been split in three and all content moved to the new blogs – Qua Locus Life, Qua Locus Tech and Qua Locus Puzzle – comments are disabled here.
The Dell Inspiron 14z is meant to have 4-5 hours battery life out of the box. Suffice to say that this wasn’t the case when I first put Ubuntu 12.04 (Precise Pangolin) on it. Two hours if I was lucky, more often 90 minutes or less.
With the help of many others on AskUbuntu.com I’ve got it up well beyond 4 hours now though. The detail and a summary of everything I did is here, hopefully this will be useful to others!