I am sure we can plug in at home too, at least with the top popped -- not sure what happens if plugged in with the top down. I'm not convinced that the WFCO will actually fully charge the battery as determined by checking its specific gravity with a hydrometer. Bulk mode only applies until a battery reaches a certain state of charge - maybe 80% to 90%. After that a three-stage charger goes into absorption mode to complete the charge, then into float mode to keep the battery charged. Typically battery manufacturers recommend that absorption mode be at something like 14.6Vdc. The WFCO 8725P uses 13.6Vdc. The best charge controllers are programmable to allow for different battery types (wet cell, AGM, lithium) and for slightly different charging parameters from manufacturer to manufacturer. I do not expect programmability from a 2010 OEM pop-up converter. That is the essence of my recent question. How do you ever get a full charge on your battery? It is one reason I am considering solar. I'm hoping that a good solar charge controller and enough sunny days between trips will allow the pup's battery to fully charge. Here is the latest version of the drawing. Thanks for all of the help. It is getting closer for sure. I get the feeling that inverters are a religious issue here. Apparently I'm in the wrong camp for this forum . That said my tendency is to arrange a system such that all of the 120v outlets can be powered by the inverter vs pulling the inverter out of the equation. Maybe we will try it and hate it, but that is closer to the arrangement we are after. I am tempted by the Victron Multiplus 12/3000/120 inverter-charger. As I understand it, all power sources are wired into that unit. It sits ahead of the converter - wired to batteries and shore power. The converter stays in place but doesn't have the as much management responsibility as before. The Multiplus sends power to the batteries when it is possible to do so. It adaptively draws from the batteries as needed, even pulling from both shore power and batteries at the same time if necessary (say you were tied into a 15amp circuit but needed more amperage for a period of time). The charger side is programmable, so it can be used for all types of batteries and tweaked to achieve the best charge. It is pricey at $1400 on Amazon for the unit with the 3000 watt inverter. I am not sure how much power it draws when not connected to shore power. I haven't seen one in real life or talked to an owner. You still need batteries and a battery monitor, solar panels and solar charge controller (if you want solar), numerous fuses, and disconnect switches. It adds up to a lot of money. It's hard to argue that it is cost effective for the amount of camping we do with the pop-up, but it sure sounds like sweet technology.