I was vague when I asked about an A/C system running on DC power. I meant with an inverter as I know these run strictly on 120 v AC. It was this inverter coming installed in an RV I was questioning as it stated they typically come with about half of that. Keystone doesn't mention this.
I was wondering, if with the proper sized inverter, running an A/C could be done using a generator to recharge during the day. It seems a bank of 4 (unknown output batteries) aren't up to the task for long enough. And with quiet time at parks you couldn't run it at night.
I don't think I'd want to install solar panels on the RV, though being 32' 10" I'd think there'd be plenty of room as the 315 watt panels I looked at briefly were 65 x 40" each. I'd prefer o park under shade and use a stand to support the panels. Each weigh 40 lbs which isn't too ridiculous individually.
We would typically set up at a place with power and water but don't want to be confined to such. And it is for that that we'd like some solar and a generator. But I was curious how well just solar would do in helping extend the stay not knowing the A/C would drain the batteries that quickly. As such it might run for a few minutes?