To answer a question put a couple of pages back, as I understand, you don't need an additional controller, just wiring, but the controller program has to be changed. Email Elite and if they are as nice to you are they were to me, you'll have an answer in five hours, even on a holiday.
For me, I have a small rig with a small battery box that is not the easiest to reconfigure and can't be expanded. The most I can do is two T105s. There is no other storage compartment with the height needed. So, the smaller size of lithium and the ability to keep it inside the rig is a huge plus, as it removes as serious limitation on the system. If you want a rig that can go alot of places, there isn't going to be a huge battery bay. The extra places you can go with a more agile vehicle can make better use of the additional power.
So, doubtful of the value added for a Class A that is hooking up everywhere it is. On the other hand, a little Winnebago trend or Sportsmobile with a teeny tiny battery compartment just seems to cry out for lithium and a solar panel.
