Originally Posted by EngineerMike
Battery capacity is critical to all inverter use. Flooded cell batteries are a maintenance issue, but they are cheap. AGM batteries are essentially maintenance free but cost like 3 or 4 flooded cell types. Fighting w/corrosion of battery cables & connections is not likely to be high on your list of stuff to do, so think about the extra expense of AGMs. Retired folks can do the maintenance bit & keep up.
Battery maintenance is an "issue"? Every couple of months I check the "water" level and add a little distilled water if necessary. The OEM set went one month short of 10 years and even then was OK, we were heading out on a trip and I didn't want trouble on the road.
I did add 4 oz of mineral oil to each cell of the Interstate U-2200's in 2004 and that's about it. I only needed to clean the terminals once in that time and the battery box still looks great with a little rust in one corner and it's just surface rust.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
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RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey