then I'd estaimate with wireless off it would last about 8 hours BTW I am not a hardcore gamer who will not stop until a game is finished that battery life is fine for meI always have the settings above (with wireless on though) and at full 3D, it lasts about 3-4hours. I suggest the PowerPak+. It increased my battery life by so much. Now my battery lasts around 5-6 hours on the settings.