[king ranch]

i am going to be running a zx1500@2ohms and a zx850.4 for my comps so around 2200rms

i have big 3 in 1/0 and a 130amp alt and a gold duralast battery the specs are O.E. group size: 65 *** 875 cold cranking Amps (1000 cranking Amps)

currently have around 1200rms no big 3 and the duralast and 130amp alt and at idle its in the high 11's low 12's on bass notes

so i will have that as of now and looking to put a battery in the back and run pos and neg to the back battery

wat would be the best battery for the back that can keep up with the power

thanks