I have a small boat with 1 battery (starter), a Suzuki 30HP outboard engine (which can also charge the battery), a Victron MPPT 75/10 charge controller. This unit has a solar panel (30W) connected to it.
A simple setup that works well:
However, I want to install a second battery (service battery) for stuff like radio, lights, water pump and more gadgets. For this to work efficiently, and have both batteries charged, I think I need an Argofet battery isolator.
But the MPPT manual does not say how to connect that, and the Argofet manual does not show how to connect things if you have solar power with the MPPT AND an engine that delivers a charging current; it just shows 1 alternator as power source.
Can anybody help me out?