Best deep cycle ?

had a pair of grp 27 everstart maxx that lasted 7 yrs of boondocking. Take care of them and you can get good life out of them. It's all about how you are gonna use them. And what your needs are. I usually am the only one in my toyhauler so batt use is very minimal. Think I'll try 2 6v next time just for kicks. Right now I am havin conv issues. That's first.