In-Depth RV Lithium Install & Wiring Film - Mike Mas

If you are interested in lithium battery technology and the issues with them, here are three groups you might want to check out on facebook. Roadtrek E-Treks & Ecotreks, Carado & Sunlight owners group, Hymer Aktiv owners and wannabees.
I own a class b with a lithium battery and found these groups to be very helpful. There is a lot of information on these forums about lithium batteries as well as solar battery charging.