Electric power

 

I wouldn't rely on the built-in battery gauge for more than a rough estimate, if that is where you took your reading.  A good digital voltmeter will be much more accurate (after resting the batteries for 3+ hours).

Welcome!  We are here to fill in the holes.  You can even find the beginnings of our own "manual" in the maintenance sub-forum here.  BTW, I've fixed the title.

 

An additional point about the fridge - it will drain your battery in about 4-5 hours so you should only use the 12 volt mode when your 'pod is connected to your TV (TV = tow vehicle on most camping forums, not television ) and you are traveling down the road.  If you stop for gas or for an hour lunch you are ok, any more than that and you should switch to gas mode.

 

However, most hitch installers do not use the correct size wire for the +12 line running from your TV's battery and the Bargeman connector (the plug next to your hitch).  It needs to be at least 10 gauge and preferrably 8 gauge wire but usually its 12 gauge like all the other wires.  Similarly the ground line either needs to be attached to the frame closeby, or it needs 10 or 8 gauge wire running all the way back to the battery.  Without this size wire you can actually drain your 'pod's battery on the way to the campground which can be a real problem if you were planning on camping w/o hookups.  If you aren't sure that you have the correct size wire, or you are sure its the wrong size and haven't "upgraded" it yet, my recommendation is to just use the gas mode.  The fridge uses very little gas, you can go about a month on one tank if you don't use any other gas appliances.

 

You could buy a small inverter and hook it up to the battery to use the television, but unless you also install 4+ batteries don't plan on buying one big enough to run the other 120 volt appliances.  They are all high-watt users.