Originally Posted by Mat7783
I havenít done a detailed calculation yet, but plan to run 12v lites, water pumps,120v fridge 7.3cuí, 700w microwave,etc. thinking of 3kw inverter.
You need to learn more to ask the right Qs.
> What is the technical difference in load discharge between these types of batteries?
If you mean discharge C-rate, aka power density LFP is at least 10x better.
But do you need that?
> Is it worth the cost?
To many unknowns, really only you can answer after getting up to speed.
Probably not is my WAG.
> I am not sure about how many 200ah batteries to use. Is there a downside to using too many in a bank like 4 of them( 800ah)?
First get your target total Ah capacity, need an Ah per 24hr consumption budget, and description of your camping / usage off grid patterns, weather, driving etc etc.
Then decide on bank chemistry.
Only then start thinking brands models cell size etc.