New Macbooks are here already and they come with crazy fast processors and monster GPUs. All that except a lesser battery life? From 10 hours to 7 hours? What's the deal with that?

Apple Adopted a new method for battery testing that is more accurate in reflecting real world usage. It involves setting the display about 50% brightness and surfing the web's 25 most popular sites.

How you use your computer will of course determine the battery life, and yes, 7 hours is still a lot! That's almost half a day!