When you’re still interested, a workaround can be to control it with an Advanced VD
It can calc the battery level, and return the lowest, and present itself as ‘the’ battery status indicator.
Inside the device you can add the two battery sensors as sensors, to have both their values visible.
Device settings:
- The two batteries combined, lowest value returned
- The batteries sensors, to show their values:
- A device which you can control, like blinds up/down toggle:
- Blinds Position: