Dual battery setup

Hey guys looking into building a dual battery system to install in my second gen. I’m not much of an electrician guru and I’m looking for some advice. I’m gonna be running a fridge, chase lights, and a small diesel heater. Also with that just some additional outlets and 12v plug ins. I’m curious as to what battery I should get I don’t mind the idea of an AGM battery but the size I don’t know. I also do a fair amount of winter camping so I know that should influence it as well. I’m looking to do solar to charge the battery. Also some recommendations are budget friendly inverters, switchboards, etc. that I’ll need to make the project functional.

Please pm me or post on here looking forward to it.

 

For battery selection, you might consider AGM batteries due to their performance in cold temperatures. A pair of 100Ah AGM batteries is typically a good starting point, but if you need more capacity, you could opt for 200Ah or larger batteries depending on your power needs. Alternatively, if you’re willing to invest a bit more, lithium batteries are an excellent choice due to their higher capacity and longer lifespan. A 100Ah lithium battery would be a suitable option if you’re looking for efficiency and durability.

For solar charging, a pair of 100W solar panels is a good starting point, though you can adjust this based on the available space and your specific power needs. Pair these panels with a solar charge controller that matches their capacity, such as a 30A MPPT (Maximum Power Point Tracking) controller, to ensure efficient charging.

 

If you use lithium batteries as the main vehicle battery as well do you have to change anything on the charging system or will the stock system also safely charge the lithium ones?