For those of you using the LiFePo4 batteries, what Ah did you go with? From my reading, it appears that Ah ratings on these aren't measured the same as with conventional flooded or AGM. That pushes the EarthX or AntiGravity from $219 for a 12Ah to well over $300.
I'm probably overthinking this purchase, but there are no Lithium retailers near me. Locals are pushing the old flooded style, maybe for the repeat business, but I usually get 4-5 years out of the Lead/Acids (though that seems to be dropping). I'm also considering just going with a mild upgrade like an AGM that I can find locally - Duracell or the old standby Sears DieHard for less than $100.