Hi all, I purchased a GoWise PS1003-NP inverter. Our boat is an 90 Searay 350. We would like to run the outlets on inverter power this winter so as to charge our phones, run the onboard PC and the Television when were away from the dock. I still wish for these outlets to be powered as normal on shore power but switch over to inverter power using the house battery when were not connected. Any special device required in addition? or is the inverter protected if it sees the shore power?