Testing Eco Flow Smart Generator adapter with Delta 2 Max Extra Battery

Over the next day or so, I will test my Smart generator Adapter with my new Delta 3 Max Plus and a Delta 2 Max extra battery.

All firmware is up to date.

I read the pamphlet that came with the adapter, and it is called a "Delta Pro" Smart generator adapter. It also does not show anything about connecting a Delta 2 Max EB with a Delta 3 Max plus so before I test, I want to know if anyone has done successfully or has any comments.

It looks pretty straight forward but with this much at stake I want to confirm anything I may not know before testing. TIA