Thanks for your replies.
We are usually out 2 weeks at a time, home for maybe a week, then back out for another couple of weeks. We cycle like that for the warm months with the odd week at a full hookup site, so not much 110 power other than what I need from a generator. During our days, we seldom go below 70% when dry camping. We flash up the generator for the blender or the hair dryer whenever DW decides she needs it.
Normally, the solar panels look after things, but when the weather gets bad for a week or whatever, we need the generator to catch up.
If I used my generator to run my DC charger directly to the batteries, would that be a better/faster way to go?
We also have a 3500 watt inverter generator. Would it make a difference in charging time? Bad thing is it's a bit noisier than the 1600.
You can probably tell that I'm not the greatest when it comes to electricity...........