I have 2 BTL 12's fully loaded on a 4ooohd Ma audio amp, im currently running 2 dry cell batteries... yellow top optima and blue top optima..... Is there any way to get more power out of this system?? I have a friend who works at auto advance and he said i could get to blue top's and get a tray so i could hook both of them up to run 24 volts.....