I have the same anecdotal battery life on my i7 Asus, so I ran a semi-anecdotal experiment. I'd charge the battery, connect to wifi, unplug the battery, do noth

I have the same anecdotal battery life on my i7 Asus, so I ran a semi-anecdotal experiment. I'd charge the battery, connect to wifi, unplug the battery, do nothing for 10 minutes, then see what the OS reports as the time left on the battery. Windows 7, pre-installed on the machine - 4 hours, 30 minutes Ubuntu 11.10, dual-booted on the hard drive - 1 hour, 48 minutes Ubuntu 12.04 alpha, booted off of a USB stick - 1 hour, 38 minutes Hopefully 12.04 will get better.