It works fine for me, since I use it for about an hour between classes or so, watching videos, then for about two hours in the gym just listening to music. I can plug it in at home every night or at work, for a nice juicy charge, which I do anyway for moving data around. Only time I see it being an issue for me is if I plan on taking it traveling, since I have no laptop and it only charges via USB now.. that sucks.