battery

Im in the process of setting up my system for the summer. Ill be running a digital designs z1 rated at 5283 rms to 4 12's and a digital designs c4 running at 200 x4I have a high output alt by ohio generator 190 amp My question is how many of the kinetic hc800 batteries am i going to need to run this I had 3 yellow top optima's in the system before and my voltage was dropping to around 11.5 volts any help would greatly be appericated

Your problem with the other setup was not a lack of batteries, it was lack of alternator.  You will have to do the alternator and see how well it keeps up.

ok i will try upgrading the alt. My next question is how many batteries am i gonna need for the setup i have a 5000 watt amp a 800 watt and thinking about 1 more amp around 200 rms should i get a couple of the kinetik 800's or get one big battery for the back of the truck any help would greatly be appericated