battery charge

I just want to say, given the situation you describe, you should check your battery.  If you have a battery charger, hook that up and make sure the battery will take a charge.  Batteries do die.

Next, maybe take your TV somewhere else and have new eyes take a look at your charging wire hookup.  It sounds like it might be deficient.  Not hooked up right, too small a wire, too small a ground wire.

Everything else folks have said is great too.  For a week or two in the woods, you will need a way to charge the battery during that time.  A generator is one sure solution.  It has its advantages and disadvantages, as all solutions do, but it's probably the surest way to go.

TT

Doug, is there any reason why one shouldn't use jumper cables to charge battery more than once a year or were you just referring to the inconvenience factor?

By the way, the reason I didn't suggest going to two group 27 or 29 batteries is that they won't fit on the tongue side-by-side unless you do some major modifications, like mounting a large tool box.  If you do that, and wire two group 27s in parallel, you'd get substantially more amp hours than two group 24s.  But two group 24s will fit on the tongue without any mods (other than mounting a second battery box), so your investment is fairly minimal ($100 or less).  I went that route.

Do you camp in one place for two weeks?  Or do you move around to other National Forest sites during that time?  I don't believe any battery or batteries will last two weeks without a charge, even with minimal battery use.  There are lots of peripherals that draw current, like the "brains" of the fridge, the inverter, the CO detector, etc. 

You can take some fairly simple steps to increase amp hours and decrease battery use, such as adding a second group 24 battery, going to one larger (group 27 or 29) battery, or going to two 6 volt golf cart batteries.  Switching standard bulbs inside for LEDs will save battery use.  The big draw on the battery is the furnace.  If you are camping in places where it gets cold at night, try to use the furnace as little as possible.

Beyond that, if you are going two weeks at a time without charging, you will likely have to look into purchasing a generator to charge up your battery.  In a pinch, you can charge your battery with your tow vehicle via jumper cables, but that's not a long-term solution.  Another possibility is solar.  But to do more than just top off a battery, you'll need to invest in some large panels.  That's definitely not my area of expertise, so others will have to chime in, but I know that the cheapie Harbor Freight, etc., small solar panels will not meet your needs.