Thanks for all of the responses. My truck is already setupfor high amperage charging and has a DC Power 275 amp alternator with 2 ga. copper wires run through a circuit breaker and continuous duty forklift solenoid to the front passenger corner of the truck bed. Planning connect this to the new camper as well when I add solar, victron charger/inverter, and larger wires to the battery bank.
Northwood is currently not offering a 3 way fridge in their truck campers due to manufacturer supply issues. Therefore I want my setup to be able to run the fridge in AC mode using the solar & truck alternator while going down the road. In the past I have tried to use propane going down the road and it would not stay lit in our Lance. It may be since we go offroad in the national forests and often its a fairly rough ride.
I have my eye on these particular
https://www.sunfunkits.com/category/3/pre-built-batteriesbatteries if they will fit (option 1: 300 ah and option 2: 275 ah):
