If anyone can kill a battery it's me! I'm hard on them and always waiting to plug in until ....well, it's too late. The battery on this chromebook has finally provided me with the cord free experience I've been looking for.  The screen resolution / picture quality is ok. It's not what I expected from a Samsung. I had bought and returned an Acer chromebook right before ordering this one. The Acer's  picture quality was DULL...I don't know how else to describe it. Although this nifty Samsung isn't the disappointment that the Acer turned out to be. I do wish it was more vivid like my phone. But, for the price, I am happy.