I have ordered a Viking 11000 ROK camping trailer from a dealer and purchased two 100 amp hour Battleborn lithium batteries from Dragonfly because they were on sale for Presidents' Day.Dealer doesn't sell Battleborn and my brother swears by them. Dragonfly and the dealer both told me all I need do is tell the 30 amp controller the batteries are lithium. Simple I guess. I have to ask because the camping trailer has not been delivered yet. Does the 30 amp controller have an inverter built in it or do I need to buy/install/have installed an inverter to use the 110V outlets to power a 110V television when not plugged in to shore power? Don't want to bug the dealer since I put money down but haven't taken possession yet. Thank you