Switching GivEnergy to Manual Service Execution

[thewishy]

Hi

I've got an issue with my GivEnergy Hybrid Gen 2 Inverter + Gen 1 9.5kWh battery. GivTCP 3.2, Predbat v8.24.2. Inverter reset via portal. Slot 2 is unused.

It's been working great over the summer, but now we're getting to days we're not guaranteed to have enough power to cover until the end of the day, I'm getting Hold Charge. Unfortunately I have the issue where the way Predbat does a Hold Charge (Setting into charge mode, setting the SOC to what is effectively the reserve level) results in the inverter charging the battery to 100%, as per #2139 and #2035
Unfortunately, I don't have an upper limit and enable charge target doesn't seem to work consistently for my inverter. The Charge Target field is effectively ignored by my Inverter. This may be a GivEnergy or GivTCP bug, although if I was doing this by hand I would simply set a reserve figure instead.

As the other bugs didn't seem to reach any particular conclusion, I'm thinking it might be best for me just to hand build the calls to the inverter in home assistant.

The Service API is explained here: https://springfall2008.github.io/batpred/inverter-setup/#service-api
What I'm trying to understand is if this can override just some specific service, or I have to rewrite the whole lot.

Has anybody done this before? Any examples you can share?

If I can get a hand, I pinkie swear I'll update the documentation