Using manual disconnect system using clips in disconnect panel. Am I reading the wiring diagram correctly: besides the generator output connection, I need two separate feeds backs to the generator from util power - a 240VAC (n1 and n2) and a 120VAC (t1). Is one for the controller, remembering that have no ATS, etc. and the other for battery charger? Did Generac fix the battery charger on this model so I don't have to worry about the old problem. Thanks in advance.