Happy to test the DC charger on real hardware (SigenStor EC 10.0 SP AU)

[cjaffrey]

Hi @TypQxQ - thanks for all the work on this integration.

You mentioned you can't test the DC charger yourself since your charger's a different brand. I run a Sigenergy DC EV charger (SigenStor EC 10.0 SP AU, firmware V100R001C22SPC114) daily, so I'm glad to be a real-hardware test bench for the DC side.

I've been following the recent DC-charger changes - the running-state-based is_on (#373), the new Start/Stop buttons (#374), and the availability gating - and I can validate them end-to-end once they're in a release (or I'm happy to run main). Specifically I can confirm on real hardware:

• The Start/Stop buttons actually start and stop a live session, and whether the availability gate correctly blocks a Start while the charger is Idle (the inverter otherwise rejects the 41000 write with Modbus Illegal Data Address).
• The running-state values my charger really reports through a full session (Idle -> Occupied -> Preparing -> Charging -> Ended), so the enum and the is_on/availability logic match reality.
• A few registers that respond on my firmware but I'm unsure are in the V2.8 doc - e.g. dc_charger_max_charging_power_limit (41002) reads a real 12.5 kW and dc_charger_total_charging_capacity reads ~242 kWh. Happy to map out exactly which DC registers my firmware answers so the supported set is accurate.

Just point me at a branch or tell me what's most useful to verify, and I'll send back results/logs. Thanks again!

[TypQxQ]

You can install the prerelease through HACS by redownloading the integration and selecting the prerelease version manually.

1. Open HACS.
2. Go to Sigenergy ESS.
3. Open the three-dot menu in the top-right corner.
4. Select Redownload.

5. In the dialog, expand Need a different version?
6. Open the Release dropdown and select the prerelease version, for example v1.2.6.
7. Click Download.

After the download finishes, restart Home Assistant.