[Jack Houpe]

Jim I'm there with you on lithium but these AGM batteries I have are less than a year old, thought I would use them till they are gone and then put lithium in. The only problem with lithium is they will be damaged if charged below 32F, I have my BMS set to disconnect at 34F which works because I've tested it with the -10 we had last December. When the time comes I will build a big lithium battery for the coach like I did for our home. The beauty of lithium is they have a flat voltage curve all the way to the end, you can use 80% of the amp hour rating and they will charge up very quickly if you have the current available. That being said I only charge our lithium's to 90% and discharge them to 25% this will add years of use to the life span.

TJ I be the Genny pig, with all the roof space I see the coach heat and air system running off the sun while driving down the road. You do have some big aspirations  with 13,000 AH. I'll be  happy with 400 at 48vdc.