Interesting... about 20 minutes. I push it to 30 minutes, but if I go beyond 40 minutes I will be here for quite some time. (Back Injury and I lose the ability to stand/straighten after a time.) In those cases where I have pushed it too far, I just spin the chair and layout on the ground next to it in my office until I can straighten out and stand (an hour or so if I do not land too hard!) The things we do in the name of art! lol! I love my laptop... just wish it could handle graphic programs!

ratscloset
aka John