I have a roof top panel array that feeds a grid tied inverter. I also have an Eg4 6000 xp and 48v 280ah battery that connects directly to items or a generator disconnect subpanel. In the event of an outage of course the grid tied inverter shuts down and any energy produces by the panels is wasted. Is there a safe way to easily connect to the off grid inverter with maybe mc4 y cables and have a connector hanging out to connect to ? This is an older xantrex GT inverter and it has an ac/dc disconnect switch on the front that would allow isolating the dc input from the inverter in the event the grid was restored if this helps.