I know that what I m looking for is maybe totally unknown... but I have some 3rd party batteries for Lenovo Ideapad B50 ( B50-30, B50-45, B50-70 ) that are ok, ( I have tested them with special charging machine ) but various machines refuse to charge them. I strongly believe that it is the same "whitelist" issue that happens to various Thinkpad laptops that you have to load a modded EC file to let it charge 3rd party batteries. If anyone has any other solution except for breaking the batteries and changing the original circuit board with the 3rd party one, I would be happy to know.
