@SD_DRACULA, I'd rather not go the HA route yet, just looking for a way to scrape the data for Battery SOC right now (to add a simple Arduino controlled LED when battery is 100%.
Is there code available to scrape the Solis web data?
You can poll the wifi dongle directly, that was the basis to that thread, using python. So a raspberry pi might be more suitable for the task instead of an Arduino
Yes you can also scrape it directly from solis cloud using a node-red flow which can work in HA or independently. It will be 5 mins out but shouldn't matter much just for battery value.