Forum Discussion
I'll probably swap out in the spring. Cheaper than lead-acid, doubly so when accounting for the fact 80-90% of the rating is usable amp-hr vs 30-50% for lead-acid (quadropoly so for AGM)
Never got the fascination with AGM. They make sense for planes and boat where spiled acid is a real risk as they rock and roll but any RV 30deg off level has bigger issues. Otherwise, they are expensive, fragile versions of standard lead-acid. If you don't want to fill them with water, get sealed lead acid.
My fascination with my group 31 AGM batteries is NO maintenance. At all. That was worth the price for me when I bought them nearly 8 years ago.
I am probably going to switch to LiFePO4 batteries this year, because I want to. The AGMs are still going strong.