geprieto

AS I understand since this is now a paid app (OS?), they are no longer permitted of posting here (which, although a bit annoying, makes sense, to keep the forum impartial, etc).
Regarding the battery %, If you don't have the special cable to talk directly to the battery BMS, it's reported by the inverter, and as such, not very precise. With the cable, as soon as I get the parts to build mine I'll update.
It's a great product, with a developer very eager to improve it further.

The Axpert inverters actually go to the trouble of calculating real power (the average of instantaneous voltage times instantaneous current, or similar). For a purely reactive (capacitive or inductive) load, this will be zero, but something like the Efergy units will merely report the product of voltage and current, ignoring phase (i.e. apparent power, in Volt·Amps).

I think you'll find it's about 0.5 kVA, but nearly zero real power. The output filter of the inverter is an LC network, with the C across the utility in SUB mode. So there will be considerable apparent power, but little real power. So nothing to worry about, it doesn't cost you anything to have power shuttling to and from the capacitor.
Some of that would be reactive power to the capacitor as above, but that's too much of a difference. I'd say it must be charging the battery with the difference. Check settings.
Any utility charging should be limited by the maximum utility charge current setting (setting 11).
I believe that the Pylontech or other BMS will not override the back to utility voltage setting (setting 12). You should change that to your liking, or have ICC or other monitoring software control the switch to utility power. But I'm no expert on SUB mode.

Thanks a lot! Guess for now I'll set the back to grid to 47 or 48, even if that doesn't translate well to %, and start working on a ICC update with a PI.

Funny how this world is. I'm thinking on the wasted energy and equipment going to hell due to companies doing installations and users not getting involved in the tuning of the system. I thought this was going to be a a set it and forget it thing. Well, at least there's nice support thanks to you guys! Plus it's entertaining...