I can't for the life of me figure out how to turn on the god forsaken battery saver on my Verizon note 4! I don't have the menu button once i go into the battery options. It's like it doesn't exsist...
Have you got a Power Saving quick toggle switch on the shade. Try holding that for more options.
(Idk though, Note 3 here.)
Ask in the Note 4 forum also.