That is what i do with my off-road POPUP trailer setup. I did beef up the batteries and cabling and changed out my high current incandescent lights etc... I make it just fine each day/night run off my batteries and the at 8Am each morning when allowed to run my 2KW generator i plug in my shore power into the generator receptacle using an adapter from WALMART and run my on-board PD9260C 60AMP Smart mode converter/charger for three hours to bring up my batteries from their 50% charge state (around 12.0VDC) to the 90% charge state (around 12.5-6VDC). Then I am good for the next day/night run off my batteries.
I can only do this routine for about 10 times otherwise my batteries start losing their performance and won't make it until 8Am the next morning. when it all drops to the 12.0VDC level I kick the batteries off line until I can re-charge them again. I don't not want to get before the 50% charge state. Of course getting to full 100% charge state takes me around 12-14 hours of charging so that is done at home after we leave the week long camping trip etc... My generator will only run about 6-7 hours on a full gas tank...
Works good for us doing this and we have been doing this routine since 2009...
I plan on adding some solar panels which will reduce my generator run time down to one hour each day and then I can let the high sun get me back up to the 90% level before I lose high sun at the end of the day...
Roy ken
