Backroads, I just replaced my 8 wet cell batteries with 8 AGM's. Although my 7 yr. old wet cell batteries were OK (probably nearing the end of their life), I got tired of the sulfating (white stuff) which caused the battery trays to rust.
I cleaned it often with baking soda/water mixture but got tired of messing with it. So, I decided to go with AGM's. These batteries are probably 3 times more than a wet cell but now I won't have sulfating and I don't have to water them. One less thing for me to worry about.
I had the battery trays cleaned and repainted so everything looks new again.
MM.