Here is a typical 30AMP Electrical block diagram of a RV trailer setup..
Might give some ideas what to expect...
My generator is PORTABLE so I like the idea of just plugging the 30AMP Shore Power cable directly into the generator 120VAC receptacle using the proper RV30A-15A long adapter for my 2KW Honda type generator. Can't get no simpler than this...
Of course my only requirement for the generator is to re-charge my battery bank only. I run all of my 120VAC items we want to use from an inverter and all of the 12VDC items direct connected to the battery bank. The generator just re-charges the battery bank back up each morning when allowed in a three hour generator run time using smart-mode technology charging so we can do all of this all over again for the next day/night run off the batteries.
We found out real quick we could only run our generator just a few hours aday so had to come with alternate quiet way of camping off the power grid to meet the generator run time restrictions that seem to be everywhere...
We can stay out a good couple of weeks doing the 50% to 90% battery charge cycles before we have to run our generator for a full 12-hours to recharge back to a full 100% charge state so that we won't do any harm to the batteries.. This is usually when we come back home and recharge the battery bank for 12-hours and more at the CAMP BACKYARD.
Always got to have PLAN Bs
Roy Ken