battery low

This block is part of the globals group and was last modified in core v15.0.0.

battery low object v15.0.0

Starts the flow when a device's battery drops below the threshold, or reports its own low-battery flag.

In pins 3

device v15.0.0
value
Only fire for this device. Leave empty for every battery device.
room v15.0.0
value
Only fire for devices in this room. Leave empty for every room.
below % v15.0.0
number
Fire when the battery crosses below this percentage.
Default 20

Out pins 9 + flow

flow v15.0.0
flow
device v15.0.0
object
The full device: id, name, room, type, capabilities, current state.
device id v15.0.0
value
Stable platform id, e.g. zigbee:0x00158d0007e1a2b3.
name v15.0.0
value
The device's friendly name.
room v15.0.0
value
The room the device is assigned to, empty if none.
type v15.0.0
value
sensor, light, switch, climate, cover, lock or button.
capability v15.0.0
value
Which capability changed, e.g. occupancy, contact, power.
value v15.0.0
value
The new value.
previous v15.0.0
value
The value before this change, empty on the first report.
at v15.0.0
number
Unix seconds the device reported.

Start-of-flow trigger for device health. Fires when battery percentage crosses below `below` (default 20), OR when a device raises its own battery_low flag. Both dialects are handled because devices implement one or the other, rarely both.

zigbee

zwave

matter

battery

maintenance

trigger

A typical wiring for battery low: the flow out pin feeds debug.

Used in these guides

These documentation pages use or explain this block:

Trigger Reference

Version history

Introduced in v15.0.0.

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