That's the same converter I installed in my 2017 J Flight 23RB in January 2018. So far it's worked exactly like it's supposed to. After the batteries have been used awhile, it will automatically go into bulk (Boost) mode-14.4. Then it drops back to normal mode-13.6. Then it will drop to maintenance (storage) mode-13.2.
The old WFCO never went into the bulk mode.
Erroll, Mary
2021 Coachmen Freedom Express 20SE
2014 F150 Supercab 4x4 w/ 8' box, Ecoboost & HD Pkg
Equal-i-zer Hitch