Question about Lithium batteries

[donsunshine]

Our ministry just received a 2016 Newmar Bay Star Sport 3306. The house batteries are dead and I was hoping to put 2 new Lithium batteries in as replacements. I read somewhere that a controller must be able to support Lithium batteries and that the alternator must be able to charge them. I know nothing about this rig. Does anyone know if it can handle the Lithium batteries? I am a total novice and know nothing about the technology in this rig.