For my first actual post, I've decided to show you guys my wiring diagram I made for a SNES portable. Please note this is my first wiring diagram, so it may not look professionally planned out. I just wanted to show you what I know (Apologies for the poor quality)
Let me know if anything needs to be changed.
If it's a Li-Ion 7.4v battery, you should add the protection circuit for the battery.
Other than that, looks pretty good to me. Nice first post, and welcome to the Benheck forums! We hope you enjoy your stay.
--John (and please call me John, it's really weird to be called by my username)
Fight MS Paint abominations! If you don't have a camera, go here, and pick something 3 megapixels or higher.