DC charging set-up

[guyb]

I want to put 2 #4059 or 1 #4059 and 1 #4023 alternators on one engine with SAR-V3 regulator; I also have solar panels, wind generator and AGM batteries.
Do I need 1 or 2 SAR-V3 for 2 alternators?
Do I need anything else in my set-up?
How can I know the charge of each alternator?
Do you have a diagram?

[Coulomb]

Anytime two alternators are mounted on the same engine, only one SARV3 is required. A Dual Alternator Controller is not required.

Alternators are wired in parallel, outputs together and field wires together. Electrically it is treated as one alternator.

To know output of each alternator you will need two ammeters, or one meter that could use two shunts. Sorry, we can't help with that.