I need to replace my cranking battery and i was thinking of using a deep cycle for the job. Ive done this in my truck and SUV for years because of all of the acc plugs the family uses when the truck not running. With all the stuff the cranking battery runs (lights,electronics,pumps, stereo,ect.) it seems like it would be a good idea. My p2 has the original cranking battery which is rated at 750 CCA. My deepcylces have 800 CCA, could i us a similar battery for a cranking battery?basscat24