When looking at the local Web GUI of the Tesla gateway in installer mode you can see the following for each powerwall:
Powerwall State
Charge Level
AC Voltage
AC Power
In the Tesla App and the End User Web GUI you see a combined value which represents both powerwalls. The Tesla Powerwall integration also provides only the combined values.
This request is to expose the separate values for each Powerwall battery, whilst maintaining the combined values as currently provided.