Your environment

• Home Assistant version: 2025.10.4
• Addon:
  • Name: multi
  • Version:
• Inverter:
  • Make: Deye
  • Model: DEYE SUN-20K-SG01HP3-EU-AM2
  • Firmware: NA
• Adaptor details:
  • Waveshare

Describe the issue/bug and what you expect

Prog voltage for HV battery cannot be changed due to its limitations here :

MIN_VOLT = 41
MAX_VOLT = 60
https://github.com/kellerza/sunsynk/blob/main/src/sunsynk/definitions/three_phase_common.py#L265

Any suggestions on proposed registers is welcome.

move battery config to options.yaml
or update here for HV batteries :
https://github.com/kellerza/sunsynk/blob/main/src/sunsynk/definitions/three_phase_hv.py

Logs (if applicable)

N/A