Blue Sea Systems 3/8" Power Post Cable Connector Plus

we woke up this morning to snow flurries this winter just will not end snow flurries in the desert in the middle of April in Santa Fe New Mexico so we took this opportunity to stay inside and work on a project today we're going to be installing two of these 12 volt DC receptacles the reason for this is when we are not hooked up to shore power when we're running off of our batteries our receptacles in the trailer don't work because we don't have an inverter right so to explain why that is the power that comes out of a battery is told the power that comes out of like shore power like that of your house receptacles like a plug your vacuum in right is 110 volt the inverter job is to take the 12 volt and change it into 110 or 120 so that your outlets work but our trailer didn't come with an inverter and we have looked into purchasing and installing one but they're really expensive a little b