I have both of my trailers plugged into standard 15/20A service coming from my garage. Works like a champ for me and I can run just about everything in the trailers except I have to watch what is running at the same time. If the Air Conditioner is running and I use the Microwave it will trip my house breaker for instance.
I keep my batteries hooked up the year around and the on-board converter/charger keeps them re-charged. Both of my converter/chargers are smart mode converter/chargers units which doesn't allow the batteries to boil out the fluids. I suspect your 2008 model TT does not have a smart mode converter/charger unit in it. You can use this unit ok but you must watch your battery fluids every couple of weeks to be sure the fluid levels is normal... Boiling out the battery fluids will kill you battery real quick.
Your new trailer pad sound great. The best solution would be to install a 30AMP Service which is real easy to come by. The 30AMP Service is wired just like your 15/20A service but has larger size wiring and different 30A RV Receptacle.
The 15a/20A Service can be used as well by just using a RV30A-15A DOGBONE "long" adapter (WALMART). You can just plug your 30A Shore Power CABLE into this adapter and you are good to go.
Hopefully you are close enough to your 120VAC Receptacle and not have to use an extension cord. I use 50-foot extension cords on both of my trailer to hookup to separate 120VAC circuits in my garage. One circuit is a 15A and the other is a 20A service. My extension cord is HD contractor type 10GAUGE extension cord. All three conductors have to be used.
Don't short change your self on the 10GAUGE size conductors for the extension cord. This will insure all of your 20AMP Service work without anything heating up on you. You can probably get away with 12GAUGE conductors but the 14-16GAUGE conductor available from the cheap "RED" extension cords at WALMART will definitely NOT BE A GOOD CHOICE for you. Low Power from smaller gauge wiring could damage your air conditioner as well...
Also DO NOT USE these small RV30A-15A small round adapters. These units will get hot on you rather quick and will burn up your SHORE POWER 30AMP PLUG.
You DO NOT want your SHORE POWER CABLE PLUG end up looking like this...
I also like to install one of these 120VAC PLUG-IN VOLTMETERS inside my trailer where I can get a good view of it before turning on my Air Conditioner. This VOLTMETER has a GREEN SCALE SAFE ZONE and if the 120VAC is outside this safe zone I don't turn on my Air Conditioner.
When you get all of this connected and running for a few minutes it is a good idea to go feel all of the connection points to make sure nothing is getting warm.
I have been using this setup for many years here at my CAMP BACK YARD setup.
We sleep in our trailer all the time sitting here a home. Makes for good get away for sure. Great place to watch HDTV and NASCAR or BALL GAME... The RV Fridge serves as a second fridge for the house.
Since my OFF ROAD POPUP is setup for camping off the power grid this setup comes in handy BIG TIME when we lose AC POWER here at the house. I just run a couple of extension cords from the on-board converter to run things inside the house. Can re-charge the next morning running my 2KW Generator just like I do when camping off the power grid.
Hope some of this gives you some ideas...
Roy Ken
