Am I missing anything?

Here is my setup

Twin Engine yamaha F250 connected to starting batteries.

Four 600ah LifeP04 batteries at 24V

Furrion Chill Cube 18k

If anyone can take a look and let me know what I am missing or any pointers I would appreciate it

Wiring of the 24V battery bank is drawn wrong, as drawn, you only get 12V from this.

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take another look….its 24v for sure B1+ to B2-, B1- to B2+…..B3 + to B4 -, B3 - to B4+………B2 - to B3 - , B2 + to B3 +


output taken accross 1 12V battery. QED.

B2neg to B1 pos, B2 pos to B1 neg = expensive short circuit.
This is how they should be wired:

Personally, I would not recommend using the Orion XS 1400 on a boat that employs a 12-24V conversion. These chargers are non-isolated, which means that if they fail internally, you could potentially see 24V on the 12V side. This could damage the outboard motors. Instead, consider looking at the isolated chargers in the Tr range. Although they are older and lack new technology, they are safer.

You might also consider adding a battery protect to disconnect the charger supply if it returns a high voltage.

Regarding the Lynx shunt, it has been referred to as the most expensive fuse holder on the market and is considered a poor product. It’s better to use a regular shunt. If your loads are solely AC and powered by the 24V system, you could forgo the shunt and utilise the internal battery monitor of the MultiPlus. This setup will allow you to connect everything to a Cerbo, which can estimate charge and discharge levels. The MultiPlus battery monitor is excellent for estimating the state of charge if your loads are AC only.

However, if you decide to switch to the isolated Tr DC-DC charger, you will need to install a shunt, as there is no way to connect these chargers to the Gx device.