Has anyone been able to create a flow where the battery automatically charges whenever the EV charger is plugged in?
When I start the flow with the EV charger, when I select “then” the Sig battery is not listed…
New to homey so go easy on me 
Unfortunately there is no support for “Then”-cards for the battery in the Sigenergy-app. However, if you want to charge the Sigen-battery with the car (EVDC) there is manual modes in mySigen to do this. And for information, Sigenergy recently confirmed that AI-integration of EVDC is going to be released in August.
Hopefully EVDC will be much more user-friendly after this.
Ah thanks for letting me know.
I am aware of the manual control however, as I am with octopus which dynamically schedules my cars charging schedule, it would mean an awful lot of legwork for me to manually force the battery to also charge…
You mention about Sig introducing an update to the charging, have you got a link regarding this?
I’m hoping that means they can simultaneously charge the EV and home battery…
To me it reads like it’ll do it’s own selective charging slots rather than the above. I hope I’m wrong!
When I want to charge the battery and my car at the same time with for example PV surplus, I manually override AI with Self-consumption and change the charging power on EVDC to example 5kW. If I get 10kW PV surplus, the other 5kW will automatically go to the home battery.
Regarding the AI integration, I just think we will have to wait and see which functions they will bring. The post from the beta forum is more of a confirmation that they finally will focus on EVDC, because it has been neglected way too long already.
I have promised another user to look into adding THEN cards after my vacation. But from what I know, currently, there are not many meaningful things you can do. If you via Modbus change mode, for instance, from AI to self consumption, then I’m told it doesn’t work to switch back via Modbus, which makes it pretty useless.
@Richard_B I can’t reach the EV AC Charger anymore. It worked without any issues before, but after a couple of weeks it suddenly lost its Modbus connection.
The EVAC is configured as Slave ID 1. The inverter and battery use Slave ID 2 on the same IP/port and are still working without any problems.
The EVAC itself is online in mySigen, and Sigenergy has confirmed that Modbus Slave ID 1 is enabled.
Homey keeps reporting:
2026-08-08 09:26:28
Error: Device registry read failed: Timeout: Req timed out
at #emitError (/app/lib/base.js:644:36)
at #handleModbusError (/app/lib/base.js:626:24)
at #readDeviceRegistries (/app/lib/base.js:479:42)
at async #pollDevice (/app/lib/base.js:300:13)
I also verified that the IP is reachable and TCP port 502 is open.
Any idea what could cause the EVAC device specifically to time out?
@Richard_B - I have the exact same problem as @Richard_Jarbsjo and everything was connected before. I just changed wifi from a temporary one and now i cannot connect it to Homey anymore.
I have tried to change ip adress on each enitity, and also deleted everything and reinstall, but nothing works.
Seem there no support anymore?
Would love to see an PV forecast card.
That will cover the exact nummer as visible in the Sigen app.
Would be great to calculate/anticipate with such number. Think of dumb ev-charging charging, running DHW-boiler, extra heat in the floor and do on.
