Installing Solar on the truck...

[RocketScott]

Great write up and details

On boats that I work on we have two banks of batteries. One for starting and one for "house". The charge controller can handle the two banks independently. AGMs have typically been used for both banks but I'm looking into the newer lithium batteries to replace the house bank. They can run down deeper, take charge faster, and are lighter weight (not as important on a truck). I'm still trying to do the math to see what the cost difference would be. They cost twice-three times as much but since they can draw down lower than an AGM I should be able to reduce the total amp hours of the bank

Something to consider. My 379 has 4 group 31s that are probably close to end of life and I need to figure out what should replace them. One good thing is the recent camper van craze has lead to a lot of nerds figuring this sort of thing out