Is having a battery in a TC necessary?

The batteries are being killed by something in the charging system, probably the converter which you say has gone bad or a bad short somewhere in the lines. Me I like to have power on the road as there have many times when the need for sleep has prompted me to camp in a pull out someplace. I do like having lights, running water, and a way to make my morning coffee.

I would trouble shoot the wiring or have someone do it for me before turning my TC into a campground queen only