AZ350x, all you need to connect every outlet in your trailer to the inverter is a simple 110v outlet that you can plug the trailer power cord into. That will power every outlet for low wattage uses such as TV's, chargers and DVD players. Just don't let your wife use her hair drier! You will also need a way to isolate your on-board battery charger. You can do this by either determining if it has it's own breaker in your power panel or, as I did, simply install a switch on the 110v side of the charger. Just make sure that you turn this switch off prior to plugging the trailer into the inverter and you are good to go. Position your inverter as close to the batteries as possible, connect with heavy gauge wire and then run a cord to a convenient place for your outlet. Simple and effective