Being a BionX owner, as well working at a shop and in contact with some of their former employees from the Aurora Ontario plant, so far I have heard that European Bionx is carrying on and working to get components manufacturing done elsewhere. I presume all pieces including batteries are available in Europe for now. And I am told they most likely will bring it to North America again although this has yet to be confirmed.
As a BionX owner, I did some digging for battery rebuild sources, as that seems to be the weakest link in the systems. Nethers Batteries, 3161 Loper Road, Newark, OH 43055, Phone: (740) 404-9650. email@example.com
is one I found online. I am sure there are other sources out there.