Our 5'er has an LG residential fridge and the one battery that came in the RV will not run the fridge more than 10-12 hours before dying. We purchased an additional one and with both, we get more than 24 hours and yes, the inverter will also continue to run it while on the road.
It takes about an hour and 20 minutes to cool the fridge down temp when it has been off for a while. If it is really hot temps outside, it might take it a bit longer.
Even with all of this, we would not go back to the absorption fridge, but we don't boondock, but we might overnight "off the grid".
