I agree with Richard. Your expectations are unrealistic. I get it that you desire to be able to run A/C non-stop on battery power. That's a common desire. Somehow, people get the impression that this is "normal." But a 20-min Google search should have told you otherwise.
And, your claim that it's dangerous? Sorry, that's not holding water. Especially at the 60-degress you are speaking off.
Without extensive and expensive modifications there are no RVs that can run the A/C off of batteries all day or all night. Mind you, a dealer my lie to you and claim that's the case. And, there are always one of two folks on forums and YouTube that swear they can do it. But they don't mention that it cost them over $10,000-$15,000 to even come close that that claim.
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2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
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