Hi @squishykid, I’m not 100% sure about the setup. There is a battery set up but I’m not sure if it integrates with the inverter as if you log on to the Solax portal it shows 0% for the battery but it does show remaining capacity.
Looking at the API/Jason from that open url on the inverters web server, it looks like the integration is displaying all it can.
Thanks for building this integration! Appreciate it 
This above mentioned inverter setup is my dads setup so I’m not 100% sure on the exact details. I will be getting a solar system myself in the next few months so look forward to it and the integration with it.
Cheers,