Pros and cons of Sealed Valve Regulated Lead Acid over Flooded wet cell.
Pro: Little maintenance (They say Maintenance free but they still need some terminal cleaning every few years).
Cons: First, most MF batteries sold for RV use are Maine/Deep cycle, Marine/Deep cycle are NOT deep cycle, they are starting batteries, though they can safely go slightly deeper into discharge than a automotive starting battery. but 50 percent is a seriously deep discharge for them, it is the recommended minimum charge on the flooded wet cell GC-2 Deep cycle.
Cons: Higher cost
Cons: Lower overall life in many cases.
So for the best "Bang for your buck" GC-2's from Sam's Club may be the best buy.
