I think I'll send it back
I'm pretty sure it's the battery but I doubt the ipod nano batteries will fit, the player is to small for that. I hope shipping doesn't cost too much
but oh well, having the player as it is now can't be that much worse that not having it here, since I can't use it away from the mains outlet in any case. thanks all for the replies, I just hope uxcell doesn't mess up again or you'll all be hearing about it soon.