Binary Sensors seems not supported

[ChristophCaina]

There are BinarySensors with device_state: battery available...

default state, when the battery is OK -> is OFF
When the battery becomes empty, the state will switch to ON

Unfortunately it seems, the battery-entity-row does not support binary sensors

This is how the battery looks like in a regular entity card:

And this, when I apply the battery-entity-row:

I would really appreciate if the entity-row would support these binary sensors, since I have a lot of them that should be included into one card - and I would really like to have the color-indication for their state.

I am aware of the fact, that these sensors could only be green & red - nothing in between :)