How much cost an original tc max battery? There is a compatible cheap battery?
I think Maybe 1300 euro or more for a used one. I would pay 750-1000 if I really wanted one.
I have sold a TS and a TC battery for 550 each as I have no use of the original one but I prefer cash in the hand
To get a equivalent you need to import one. You may also have someone build you a special battery and if they are good at it it would cost the same as a new original battery but I bet you'd get a little bit more power and capacity from it.