I don't think there is a problem with any of the equipment. I think the only issue I'm dealing with is an inverter with a low high voltage disconnect. I didn't point it out in the 2nd video clip, but the small inverter did not fault in high voltage when the large one did and it's high voltage range is also 15V.
We have identified some other weak points in my system like batteries may be going and my controller takes up to a second to put a clamp on a sudden voltage rise. But to me it seems that all equipment works fine.
A new/different large inverter would probably cure my issues. But right now I'm not interested in buying a new one and rather using the programmable controller to put a bandaid on the situation.
