First, fix the typo in the thread title so people have some clue what brand you are referring to.

Next, do at least a small amount of research so you know which brands are so totally proprietary and difficult to replace parts for.

Then, do a search for "Syonyk", as he has figured out the steps to make a replacement battery work with a Bionx kit with only minimal loss of functionality.

It is a bit complicated, but that is the result of the purchase decision that you made. Good luck.