Hi there
Not sure if you resolved your problems with the Add On.
I just want to let you know, that I finished the work for the first HA integration based on the python Api I released few weeks ago.
I announced it already in the feature request post.
This may be a much smoother and more user friendly way to integrated Anker Solix devices into HA, without the need for an Add on container or MQTT overhead that requires manual sensor creation if no auto discovery topics are used.
The library supports latest structures of the Api, including use of shared accounts, multiple systems per account or multiple devices per system.
However, since I only own a single Solarbank as only Anker device, I cannot really test other constellations.
I hope this will work anyway for most of the systems constellations that are used as of now.