problem with mx17 1st generation is that they gave up on it a long time ago, its not your batterry thats an issue but most likelly the BIOS, when I received my laptop from shop I had same issue, and had to back my bios to a03 I think, maybe a02, just resently my batterry was not even being detected by my mx17, not charging either so my quick fix was to plug in an old dell charger at which point it took me to bios (f2) key if working on your laptop, and after few changes (since the charger was not strong enough to push my mx17) it allowed me to tweek it a bit, and reverted to A03 bios from A07 , after that my batterry is now fully charged and still charging , even after I reinstalled A07 bios. Its their issue but none of them know enough to fix it, so you have to do it on your own, and it being gen1 mx17 most likelly the warranty is expired, and they will claim that its a software issue, well it is but their software that causes the issue, and they want to charge you money for not having a clue what they are talking about.