We need to replace the batteries for our motorhome. The two that are in the compartment are large, at least the size of 3 car batteries each. When I Google RV battery I get a selection of deep cycle batteries, but they appear regular size. We stay at places that have electricity, so I'm looking for a "basic" lead acid battery. I realize they should be of good quality.

You should have two sets of batteries, the ones for the engine and the ones for the house. Which ones are we talking about?

House are the ones I described.

What is your normal, daily amp hour use?

Do you have to check and and water as needed to your current batteries or are they maintenance free? I would recommend getting AGMs - just makes things so much easier for you.

Those are likely 8d sized batteries, and yes they are very large and heavy. I bought one from Interstate a number of years ago. Somewhere there should be a part number on the battery, you can then look it up and cross reference it to other manufacturers batteries. Good luck.

Since Cookie stays at places with electricity, he/she doesn’t really need 8d batteries.

Thanks all for input, I'll post what we get. Btw Cookie dough is a guy who used his favorite ice cream flavor before we even had an RV. FWIW my DW and I will celebrate our 35 year wedding anniversary next month. She is the "the cherry on top" 💞

I had an RV tech to our location for for another issue. I showed him what I had found on line. Went with 2, size 27 deep cycle. Used 2 battery boxes secured to the tray that the old ones were on. 2 more could fit on the tray if needed. This fit our budget and requirements.