This is the battery I am running in my Rat Rod. I wanted full capacity fo feed my electric A/C. Only had it a short time, but all is well. Car cranks great, A/C seems much appier, and it sure is light. Fits like a glove too. I chose Group 31 as I wanted the terminals closer to the fuel tank, to make hoping up the battery terminals easier, jumping it easier, and hooking up my battery tender easier.
LifiePo Battery - Group 31