People try so hard to extend laptop battery life—going blind staring at dimmed screens, developing repetitive stress injuries by ditching mice—that they can miss the obvious. Like browser choice, which apparently have a huge impact on battery life.
Seeing as most of the time spent on a laptop is spent online, AnandTech ran exhuastive tests on Windows machines, Intel and AMD, netbook and notebook, to see if switching browsers makes any difference in battery life. And hey, it does! In some tests, there was a 30% advantage between the worst browser—always Safari—and the best—Internet Explorer 8. Seriously.