On my 1648 I run a 24V, 74# Minn Kota Maxxum using 2 Everstart group 27 batteries. I also pull of each battery independently for 12V for stereo, bilge pump x 2, LED nav lights, LED interior lights, sonar, LED light bar, 12V plug x 2 and starter for my '94 Johnson 50/35 jet. I have a NOCO Gen 2...