I haven't seen any type of battery hookup for our camper. And I haven't found any unidentified wires/connections that can't be explained. Nor have I torn apart the dinette seat to look at the back of the converter to check for 'optional' connection points for a 12v battery source.
Will there be 'lugs' to connect a battery to the converter to create a plug-and-play 12v power source (sans shore power), or is a more sophisticated system need to be built/installed to provide basic 12v power?