Your FIBARO Flood Detector still works as when it was included in the Z-Wave network.
The FIBARO Flood Detector must be powered in the same way as when it was included in the Z-Wave network. If you perform the inclusion while your FIBARO Flood Detector is in battery power mode, it will remain in battery power mode. Conversely, if you perform the inclusion while your FIBARO Flood Detector is in mains mode, it will remain in mains mode.