Recently bought a 1997 Sailfish 198 CC with a Evinrude 130HP. It came equipped with a dual battery setup with Perko (Off, Bat1, Both, Bat 2). Bat 1 is starting battery and Bat 2 runs all the electronics (bilge pump, baitwell, FF, stereo and tilt and trim). I want to purchase a 24v, TM, 80lbs...