There really are situations where AGM is warranted but they are relatively rare in vandweller scenarios.

the ‘dweller installs the battery bank in a location where it is not reachable for normal maintenance the ‘dweller needs to mount the battery on its side for some esoteric reason (or is 4×4 trekking so the RV itself can end up in weird angles) the ‘dweller chooses to run heavier-than-normal loads like microwaves, electric coffeemakers, electric cooktops, etc. Note this means the battery can be drained faster (and bulk recharged faster), not that it provides more capacity. the ‘dweller has has a chemical hypersensitivity. the advanced ‘dweller is running a single battery for both house and starter systems (“shallow cycling”) <– not for beginners!

fixme