Agree with Mark.
By the way, turning the inverter off does NOT affect charging. The charger portion is always active if shore power or generator is available.
You probably have a parameter to set for your battery bank size, typically some number of amp hours. You should make sure that is set close as possible to the aggregate number of amp hours for whatever batteries you have installed. The factory should have done so, but...
I've turned down the max shore power amps when I was plugged in to a 15A circuit in my brother's driveway. Otherwise I leave it alone.
2004 American Tradition; 2013 Buick Verano
Homebase in the Ocala Nat'l Forest near Ocala, FL