I Can`t charge my archos key

[Zombiie]

i had it for two weeks till it stopped charging the day it stopped it was perfectly fine it was charging and everything(this was on monday btw i noticed in 7th period when trying to charge it on the pc in school)but now it wont charge or show up on ANY computer i stick it into theres nothing wrong with it or looks wrong it hasnt died yet and i`ve been using it for days now even night and its not dead and it been on 1 battery thing since monday but i do like that but i can put any songs on there charge it or anything my pc notices i stick it in sometimes but it doesnt show up as anything can you help please before it dies and stays dead -_-
Ps the usb connecter is kinda wobblie but it was like that when i got it.