I haven't tried any other USB settings yet. The player does indicate that it's charging when I plug it in to my computer, the only exceptions being the times the player wouldn't show anything at all, making me think it was dead.

I said a few hours, but it could actually be 5-6 sometimes. Sometimes when I think it should have a full charge, however, it only lasts 2 days of me doing my morning routine (check stuff online, shower, etc.) which is around an hour and a half. I think the best it has done is part of a third day in a row of that.

I wouldn't be surprised if there's something wrong with my unit.