Can I charge batteries using a portable Honda EU22i generator to a Multiplus II?

DIY
1

The generator works well with my Victron IP43 charger, but that is for 12v output only. I’m looking to install a 24v Multiplus II.

2

That should work as long as it is not an ESS system.
Depending on the model, you must set the input current limit to match the generator output.

3

Also set the battery charge current as not to overload the EU22 “continuous” output rating.