Congratulations on your new coach and welcome to the forum!!! Big transition from trailers to class A but the basics are the same.
The house batteries do require water but he coach battery is maintenance free. I usually only need to add water to my house batteries about 2-3 times a year.
Love your idea of a spreadsheet, it’s a real PIA having to look thru so many pages trying to find a specific idea. Let us know how it goes, sure there will be a lot of interested people!!!
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