I’ve got a boat with a starter battery and an auxillary battery. Both charged with a 70A alternator. Ive bought a cyrix 120A to cahrge both batteies but I’m stalling a bit on the installation schematic.
The problem is that I’ve got a manual battery coupler (Off, Bat I, Bat II, Bat I+II).
Before doing something stupid, I would like to know where to install the Cyrix. The “typical” schematic is easy to understand but I’ve never found one with a manual battery coupler.