Hey! Thanks for posting a link to this addon. Just took delivery of 2 280ah today and unfortunately seem to have a fault with one.
That said, I thought I’d have a play around with the add-on you posted and it turns out the batteries are running JBD BMS which is supported, so the working battery was detected by the add-on and integration failed. I found I needed to unpair it with my phone’s app, reloaded the integration and it fired up perfectly.
Might be worth having a go with it if you haven’t already. 