Wow, fast response, thanks so much. Other web stuff says it's ok too. Yes, you're right, the guy at Bluetti tech dept sounded like he was incompetent for sure. I'll give it a shot at 70ft and see what happens. I can go shorter but sun exposure time would be shortened a little.
Again, thanks!
Recently purchased Bluetti ac200max, 2 b230's, 3 pv200 solar panels. These are inside the house back up units, panels need to be 70ft away for optimul exposure. Called Bluetti and they said 70ft of even 8guage cables wouldn't work at all, max distance is 20ft. I'm retired, bad back, I can't be...