Linda I am with Norm and Tom on this one. If you have the wiring in place already I would just put a new smart charge converter in it. I dont hear the one in mine at all. I also have a
solar panel and do camp a lot without power. But when camping in cooler weather and at a spot that has power it is a big plus to be able to plug it in an not have to worry about how much the
furnace is drawing down the
battery. Also nice on bad weather days to be able to plug in and listen to tunes and watch a couple of movies and be warm at the same time without having to keep an eye on the battery monitor. Also handy to be able to just plug the trailer in at home to charge it up if its been sitting for more than a month without use - mines stored undercover so the
solar isnt of much help there. Yes you could get a portable charger but its going to weigh the same and take up as much space as a new converter and you will need to take the cover off your battery to connect it up each time you want to use it - IMO way easier to just plug it in :-)