I'm looking to buy BPL6 Battery for UX390N

[chichich]

Dear UXers,

if by any chance any of you has a good BPL6 battery for sale, I would like to purchase it. I can send money via paypal. I see them on eBay for about $80-90, which is out of my budget, but also, i'm not really sure if those are the real thing. Do you have any other suggestions?

Thanks,
D