Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Ok guys I was wrong. I made some test and find out that just watching HD video, without any other user-level process active, and half brightness battery should last about 5 and an half/6 hours that is indeed very good.

I also tested with wifi on (streaming the video from a network drive at ~3mb) and wifi off (video in local drive) and surprisingly didn't change much in terms of battery usage.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.