Question doubt about bluetooth and battery

[Jochezapata]

I have many doubts about the bluetooth for the portable Wii on the guide page explains but not with many details or at least I did not understand any could send me images of how they wired the bluetooth of the Wii cut plate to install it myself and the other question would be which battery and voltage do you recommend for a wii with original uncut plate to have more hours of play thanks for responding.