Need some guidance

[Waterloo]

If you can afford a good set of AGM batteries, I would go that route. Try a Batteries Plus store, their batteries are fresh, I can attest to that, and come with a pretty solid warranty. I know when I was at the truck stop looking at their batteries, none were up to snuff, they had little to any charge on them and when checking the dates... Those babies had been there awhile.

Myself, I'm running four wet cell old school Duracell group 31 in the battery box, $99 ea from Batteries Plus, they were just a few weeks old. In the sleeper, one deep cycle AGM battery that is connected to the battery box with the solar panels... Even one 100 watt panel with a controller will keep all of them fresh, even on cloudy days.

If you are concerned about battery health and longevity, seriously look at a solar panel and an inexpensive controller. Worth every penny.