Help with Battery Notification Package

Hello, i have downloaded this Package for receive notification of low battery in my devices:

################################################################

Battery Alert Package by NotoriousBDG

Source: https://raw.githubusercontent.com/notoriousbdg/Home-AssistantConfig/master/packages/battery_alert.yaml

################################################################

################################################################
## Install Instructions
################################################################
##
##  1. Enable MQTT using your preferred MQTT broker
##     https://home-assistant.io/components/mqtt/
##
##  2. Enable MQTT Discovery by adding `discovery: true` and
##     `discovery_prefix: homeassistant` under the `mqtt:` section
##     of your configuration.yaml
##
##     mqtt:
##       discovery: true
##       discovery_prefix: homeassistant
##
##  3. Save this file as CONFIGDIR/packages/battery_alert.yaml
##
##  4. Add `packages: !include_dir_named packages` under the
##     `homeassistant:` section of your configuration.yaml
##
##     homeassistant:
##       packages: !include_dir_named packages
##
##  5. Restart Home Assistant
##
##  6. Adjust Min Alert Threshold slider to the minimum battery
##     level to alert on.  Note: the input slider requires the
##     recorder component to keep it's state through restarts.
##     If recorder is not enabled, the threshold can be set by
##     un-remarking `initial` and setting the preferred default.
##
##  7. Adjust Max Alert Threshold slider to the maximum battery
##     level to alert on.  Note: the input slider requires the
##     recorder component to keep it's state through restarts.
##     If recorder is not enabled, the threshold can be set by
##     un-remarking `initial` and setting the preferred default.
##
##  8. Setup notifications by entering the notifier name in the `Notifier Name` input text box.
##     E.g. `notify.slack`.  If no value is entered, it defaults to `notify.notify`.
##
##  9. Set the notifier format by selecting either `Default` or `Slack.  Note: most notifiers
##     are compatible with the `Default` format.
##
## 10. To disable alerts for a specific entity, use customize to
##     set `battery_alert_disabled` to `true`
##
##     homeassistant:
##       customize:
##         sensor.sensor_name_to_ignore_battery:
##           battery_alert_disabled: true
##
## 11. To disable creating a sensor from battery attributes for a specific entity, use customize to
##     set `battery_sensor_creation_disabled` to `true`
##
##     homeassistant:
##       customize:
##         sensor.sensor_with_battery_attibute:
##           battery_sensor_creation_disabled: true
##
## 12. If a battery attribute requires a template to convert it into a usable percent, use customize
##     to add `battery_template` with the necessary template. The template result must be a number
##     that represents a percentage.
##
##     This example will create a battery sensor with the value of battery_level * 2
##
##     homeassistant:
##       customize:
##         sensor.sensor_with_battery_attibute_template:
##           battery_template: "{{ value_json.value | int * 2 }}"
##
## 13. If a battery attribute requires a template to convert it into a string, use customize to add
##     `battery_template_string` with the necessary template. The template result must be a string.
##     For example, "Low" will trigger low battery notification).
##
##     This example will create a battery sensor that contains "Low" if battery_level
##     is less than 2
##
##     homeassistant:
##       customize:
##         sensor.sensor_with_battery_attibute_template:
##           battery_template_string: >-
##             {%- if value_json.value < 2 -%}
##             Low
##             {%- else -%}
##             Full
##             {%- endif -%}
################################################################

################################################
## Customize
################################################
homeassistant:
  customize:
    ################################################
    ## Node Anchors
    ################################################
    package.node_anchors:
      customize: &customize
        package: 'battery_alert'

    ################################################
    ## Group
    ################################################
    group.battery_view:
      <<: *customize
      friendly_name: "Batterie"
      icon: mdi:battery-alert

    group.battery_alert:
      <<: *customize
      friendly_name: "Batterie Scariche"
      icon: mdi:steam
      control: hidden

    group.battery_status:
      <<: *customize
      friendly_name: "Stato Batterie"
      icon: mdi:battery-charging
      control: hidden

    ################################################
    ## Automation
    ################################################
    automation.battery_persistent_notification:
      <<: *customize
      friendly_name: "Battery Persistent Notification"
      icon: mdi:comment-alert-outline

    automation.battery_persistent_notification_clear:
      <<: *customize
      friendly_name: "Battery Persistent Notification Clear"
      icon: mdi:comment-remove-outline

    automation.battery_notification_default:
      <<: *customize
      friendly_name: "Battery Notification Default Format"
      icon: mdi:comment-alert-outline

    automation.battery_notification_slack:
      <<: *customize
      friendly_name: "Battery Notification Slack Format"
      icon: mdi:comment-alert-outline

    automation.battery_sensor_from_attributes:
      <<: *customize
      friendly_name: "Create Battery Sensor from Attributes"
      icon: mdi:battery-charging-wireless-outline

    automation.update_battery_status_group_members:
      <<: *customize
      friendly_name: "Update Battery Status Group Members"
      icon: mdi:group

    automation.delete_battery_sensor:
      <<: *customize
      friendly_name: "Delete a Battery Sensor"
      icon: mdi:server-remove

################################################
## Group
################################################
group:
  battery_view:
    view: yes
    entities:
      - group.battery_status
      - group.battery_alert

  battery_alert:
    control: hidden
    entities:
      - input_boolean.low_batteries
      - input_number.battery_alert_threshold_min
      - input_number.battery_alert_threshold_max
      - input_text.delete_battery_sensor
      - input_text.notifier_name
      - input_select.notifier_format
      - automation.battery_persistent_notification
      - automation.battery_persistent_notification_clear
      - automation.battery_notification_default
      - automation.battery_notification_slack
      - automation.battery_sensor_from_attributes
      - automation.update_battery_status_group_members
      - automation.delete_battery_sensor

################################################
## Input Boolean
################################################
input_boolean:
  low_batteries:
    name: Low Batteries
    icon: mdi:battery-alert

################################################
## Input Number
################################################
input_number:
  battery_alert_threshold_max:
    name: "Soglia Massima Avviso"
    icon: mdi:arrow-collapse-up
    mode: slider
    min: -1
    max: 100
    # initial: 40

  battery_alert_threshold_min:
    name: "Soglia Minima Avviso"
    icon: mdi:arrow-collapse-down
    mode: slider
    min: -1
    max: 100
    # initial: -1

################################################
## Input Select
################################################
input_select:
  notifier_format:
    name: Formato Nofiche
    options:
     - Default
     - Slack
    icon: mdi:comment-question-outline

################################################
## Input Text
################################################
input_text:
  delete_battery_sensor:
    name: Elimina Sensore Batteria
    mode: text
    initial: ''

  notifier_name:
    name: App Notifica
    mode: text

################################################
## Automation
################################################
automation:
- alias: battery_persistent_notification
  initial_state: 'on'
  trigger:
    - platform: time_pattern
      hours: '/3'
    - platform: state
      entity_id:
        - input_number.battery_alert_threshold_min
        - input_number.battery_alert_threshold_max
  action:
    - condition: template
      value_template: &low_battery_check >
        {% macro battery_level() %}
        {% for entity_id in states.group.battery_status.attributes.entity_id if (
          not is_state_attr(entity_id, 'battery_alert_disabled', true)
          and states(entity_id) is not none
          and (
            (
              (
                states(entity_id) is number
                or states(entity_id) | length == states(entity_id)| int | string | length
                or states(entity_id) | length == states(entity_id)| float | string | length
              )
              and states(entity_id) | int < states.input_number.battery_alert_threshold_max.state | int
              and states(entity_id) | int > states.input_number.battery_alert_threshold_min.state | int
            )
            or states(entity_id) | lower == 'low'
            or states(entity_id) | lower == 'unknown'
            or states(entity_id) | lower == 'unavailable'
          )
        ) -%}
          {{ state_attr(entity_id, "friendly_name") }} ({{ states(entity_id) }})
        {% endfor -%}
        {% endmacro %}
        {{ battery_level() | trim != "" }}
    - service: input_boolean.turn_on
      data:
        entity_id: input_boolean.low_batteries
    - service: persistent_notification.create
      data_template:
        title: "Batterie Scariche"
        notification_id: low_battery_alert
        message: &message >
          {% macro battery_level() %}
          {% for entity_id in states.group.battery_status.attributes.entity_id if (
            not is_state_attr(entity_id, 'battery_alert_disabled', true)
            and states(entity_id) is not none
            and (
              (
                (
                  states(entity_id) is number
                  or states(entity_id) | length == states(entity_id)| int | string | length
                  or states(entity_id) | length == states(entity_id)| float | string | length
                )
                and states(entity_id) | int < states.input_number.battery_alert_threshold_max.state | int
                and states(entity_id) | int > states.input_number.battery_alert_threshold_min.state | int
              )
              or states(entity_id) | lower == 'low'
              or states(entity_id) | lower == 'unknown'
              or states(entity_id) | lower == 'unavailable'
            )
          ) -%}
            {{ state_attr(entity_id, "friendly_name") }} ({{ states(entity_id) }})
          {% endfor -%}
          {% endmacro %}
          {{ battery_level() }}

- alias: battery_persistent_notification_clear
  initial_state: 'on'
  trigger:
    - platform: time_pattern
      minutes: '/15'
      seconds: 00
    - platform: state
      entity_id:
        - input_number.battery_alert_threshold_min
        - input_number.battery_alert_threshold_max
  action:
    - condition: template
      value_template: &low_battery_clear >
        {% macro battery_level() %}
        {% for entity_id in states.group.battery_status.attributes.entity_id if (
          not is_state_attr(entity_id, 'battery_alert_disabled', true)
          and states(entity_id) is not none
          and (
            (
              (
                states(entity_id) is number
                or states(entity_id) | length == states(entity_id)| int | string | length
                or states(entity_id) | length == states(entity_id)| float | string | length
              )
              and states(entity_id) | int < states.input_number.battery_alert_threshold_max.state | int
              and states(entity_id) | int > states.input_number.battery_alert_threshold_min.state | int
            )
            or states(entity_id) | lower == 'low'
            or states(entity_id) | lower == 'unknown'
            or states(entity_id) | lower == 'unavailable'
          )
        ) -%}
          {{ state_attr(entity_id, "friendly_name") }} ({{ states(entity_id) }})
        {% endfor -%}
        {% endmacro %}
        {{ battery_level() | trim == "" }}
    - service: input_boolean.turn_off
      data:
        entity_id: input_boolean.low_batteries
    - service: persistent_notification.dismiss
      data:
        notification_id: low_battery_alert

- alias: battery_notification_default
  initial_state: 'on'
  trigger:
    - platform: time
      at: '10:00:00'
    - platform: time
      at: '18:00:00'
    - platform: state
      entity_id:
        - input_number.battery_alert_threshold_min
        - input_number.battery_alert_threshold_max
  action:
    - condition: template
      value_template: *low_battery_check
    - condition: template
      value_template: "{{ states.input_select.notifier_format.state == 'Default' }}"
    - service_template: >
        {% if "notify." in states.input_text.notifier_name.state %}
          {{ states.input_text.notifier_name.state }}
        {% else %}
          notify.notify
        {% endif %}
      data_template:
        title: "Batterie Scariche"
        message: *message
- alias: battery_notification_slack
  initial_state: 'on'
  trigger:
    - platform: time
      at: '10:00:00'
    - platform: time
      at: '18:00:00'
    - platform: state
      entity_id:
        - input_number.battery_alert_threshold_min
        - input_number.battery_alert_threshold_max
  action:
    - condition: template
      value_template: *low_battery_check
    - condition: template
      value_template: "{{ states.input_select.notifier_format.state == 'Slack' }}"
    - service_template: >
        {% if states.input_text.notifier_name.state != "" %}
          {{ states.input_text.notifier_name.state }}
        {% else %}
          notify.notify
        {% endif %}
      data_template:
        message: "Batterie Scariche"
        data:
          attachments:
          - color: '#52c0f2'
            title: "Questi dispositivi hanno le batterie scariche:"
            text: *message
- alias: battery_sensor_from_attributes
  initial_state: 'off'
  trigger:
    - platform: event
      event_type: state_changed
  condition:
    - condition: template
      value_template: "{{ trigger is not none }}"
    - condition: template
      value_template: "{{ trigger.event.data is not none }}"
    - condition: template
      value_template: "{{ trigger.event.data.old_state is not none }}"
    - condition: template
      value_template: "{{ trigger.event.data.new_state is not none }}"
    - condition: template
      value_template: "{{ 'battery' not in trigger.event.data.new_state.name | lower }}"
    - condition: template
      value_template: "{{ not is_state_attr(trigger.event.data.entity_id, 'device_class', 'battery') }}"
    - condition: template
      value_template: "{{ not is_state_attr(trigger.event.data.entity_id, 'battery_sensor_creation_disabled', true) }}"
    - condition: or
      conditions:
        - condition: and
          conditions:
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery_level is defined }}"
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery_level is not none }}"
        - condition: and
          conditions:
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery is defined }}"
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery is not none }}"
        - condition: and
          conditions:
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes['Battery numeric'] is defined }}"
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes['Battery numeric'] is not none }}"
        - condition: and
          conditions:
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery_critical is defined }}"
            - condition: template
              value_template: "{{ trigger.event.data.new_state.attributes.battery_critical is not none }}"
  action:
    - service: mqtt.publish
      data_template:
        topic: "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery/config"
        retain: true
        payload: &config_payload >-
          {
            {% if trigger.event.data.new_state.attributes.battery_level is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_level -%}
              {%- set attribname = 'battery_level' -%}
            {%- elif trigger.event.data.new_state.attributes.battery is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery -%}
              {%- set attribname = 'battery' -%}
            {%- elif trigger.event.data.new_state.attributes['Battery numeric'] is defined -%}
              {%- set attribval = (trigger.event.data.new_state.attributes['Battery numeric'] | int + 1) * 10 -%}
              {%- set attribname = 'Battery numeric' -%}
            {% elif trigger.event.data.new_state.attributes.battery_critical is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_critical -%}
              {%- set attribname = 'battery_critical' -%}
            {%- endif -%}
            "name": "{{ trigger.event.data.new_state.name }} Battery",
            "state_topic": "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery/state",
            {% if trigger.event.data.new_state.attributes.battery_template is defined -%}
            "value_template": "{{ trigger.event.data.new_state.attributes.battery_template }}",
            "unit_of_measurement": "%",
            "device_class": "battery",
            {% elif trigger.event.data.new_state.attributes.battery_template_string is defined -%}
            "value_template": "{{ trigger.event.data.new_state.attributes.battery_template_string }}",
            "icon": "mdi:battery",
            {% elif trigger.event.data.new_state.attributes.battery_critical is defined -%}
            "value_template": "{{ "{{" }} 'low' if value_json.value else 'full' {{ "}}" }}",
            "icon": "mdi:battery",
            {% else -%}
            "value_template": "{{ "{{" }} value_json.value | int {{ "}}" }}",
            {% if attribval | int == attribval or attribval | float == attribval or attribval | length == attribval | float | string | length or attribval | length == attribval | int | string | length -%}
            "unit_of_measurement": "%",
            "device_class": "battery",
            {%- elif attribval == "High" or attribval == "Full" -%}
            "icon": "mdi:battery",
            {%- elif attribval == "Medium" or attribval == "Med"-%}
            "icon": "mdi:battery-50",
            {%- elif attribval == "Low" -%}
            "icon": "mdi:battery-alert",
            {%- else -%}
            "icon": "mdi:battery-unknown",
            {%- endif %}
            {% endif -%}
            "unique_id": "{{ trigger.event.data.entity_id.split('.')[1] }}_battery",
            "json_attributes_topic": "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery/attributes"
          }
    - service: mqtt.publish
      data_template:
        topic: "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery/state"
        retain: true
        payload: >-
          {
            {% if trigger.event.data.new_state.attributes.battery_level is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_level -%}
            {%- elif trigger.event.data.new_state.attributes.battery is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery -%}
            {%- elif trigger.event.data.new_state.attributes['Battery numeric'] is defined -%}
              {%- set attribval = (trigger.event.data.new_state.attributes['Battery numeric'] | int + 1) * 10 -%}
            {%- elif trigger.event.data.new_state.attributes.battery_critical is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_critical -%}
            {%- endif -%}
            "value": {% if attribval | int == attribval -%}
              {{ attribval | int }}
            {%- elif attribval | float == attribval -%}
              {{ attribval | float }}
            {%- elif attribval | length == attribval | float | string | length -%}
              {{ attribval | float }}
            {%- elif attribval | length == attribval | int | string | length -%}
              {{ attribval | int }}
            {%- else -%}
              "{{ attribval }}"
            {%- endif %}
          }
    - service: mqtt.publish
      data_template:
        topic: "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery/attributes"
        retain: true
        payload: >-
          {
            {% if trigger.event.data.new_state.attributes.battery_level is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_level -%}
              {%- set attribname = 'battery_level' -%}
            {%- elif trigger.event.data.new_state.attributes.battery is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery -%}
              {%- set attribname = 'battery' -%}
            {%- elif trigger.event.data.new_state.attributes['Battery numeric'] is defined -%}
              {%- set attribval = (trigger.event.data.new_state.attributes['Battery numeric'] | int + 1) * 10 -%}
              {%- set attribname = 'Battery numeric' -%}
            {%- elif trigger.event.data.new_state.attributes.battery_critical is defined -%}
              {%- set attribval = trigger.event.data.new_state.attributes.battery_critical -%}
              {%- set attribname = 'battery_critical' -%}
            {%- endif -%}
            "entity_id": "{{ trigger.event.data.entity_id }}",
            {% if attribname is defined -%}
            "{{ attribname }}": "{{ attribval }}",
            {%- endif %}
            "delete_battery_sensor": "homeassistant/sensor/{{ trigger.event.data.entity_id.split('.')[1] }}_battery"
          }
- alias: update_battery_status_group_members
  initial_state: 'on'
  trigger:
    - platform: time_pattern
      hours: '/6'
  action:
    - service: group.set
      data_template:
        object_id: "battery_status"
        entities: >-
          {%- for item in states.sensor if (
            not is_state_attr(item.entity_id, 'hidden', true)
            and (
              is_state_attr(item.entity_id, 'device_class', 'battery')
              or 'battery' in item.attributes.icon | lower
              or (item.entity_id | lower).endswith('_bat')
              or (item.name | lower).endswith('_bat')
              ) or (
                (
                  'battery' in item.entity_id | lower
                  or 'battery' in item.name | lower
                ) and (
                  item.attributes.icon is not defined
                ) and (
                  not is_state_attr(item.entity_id, 'battery_alert_disabled', true)
                )
              )
            )
          -%}
            {{ item.entity_id }}{% if not loop.last %}, {% endif %}
          {%- endfor -%}
- alias: delete_battery_sensor
  initial_state: 'on'
  trigger:
    - platform: state
      entity_id:
        - input_text.delete_battery_sensor
  condition:
    - condition: template
      value_template: "{{ 'homeassistant/sensor/' in states.input_text.delete_battery_sensor.state }}"
  action:
    - service: mqtt.publish
      data_template:
        topic: "{{ states.input_text.delete_battery_sensor.state }}"
        retain: true
    - service: mqtt.publish
      data_template:
        topic: "{{ states.input_text.delete_battery_sensor.state }}/attributes"
        retain: true
    - service: mqtt.publish
      data_template:
        topic: "{{ states.input_text.delete_battery_sensor.state }}/state"
        retain: true
    - service: mqtt.publish
      data_template:
        topic: "{{ states.input_text.delete_battery_sensor.state }}/config"
        retain: true

But i receive this error:

2020-01-04 04:45:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 04:45:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 05:00:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 05:00:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 05:15:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 05:15:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 05:30:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 05:30:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 05:45:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 05:45:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 06:00:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 06:00:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification: Test condition template: False
2020-01-04 06:00:00 ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'None' has no attribute 'attributes'
2020-01-04 06:00:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 06:15:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 06:30:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 06:45:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 07:00:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False
2020-01-04 07:15:00 INFO (MainThread) [homeassistant.helpers.script] Script battery_persistent_notification_clear: Test condition template: False

and i think depends from this part of the package but i don’t know what is the problem:

- alias: battery_persistent_notification_clear
  initial_state: 'on'
  trigger:
    - platform: time_pattern
      minutes: '/15'
      seconds: 00
    - platform: state
      entity_id:
        - input_number.battery_alert_threshold_min
        - input_number.battery_alert_threshold_max
  action:
    - condition: template
      value_template: &low_battery_clear >
        {% macro battery_level() %}
        {% for entity_id in states.group.battery_status.attributes.entity_id if (
          not is_state_attr(entity_id, 'battery_alert_disabled', true)
          and states(entity_id) is not none
          and (
            (
              (
                states(entity_id) is number
                or states(entity_id) | length == states(entity_id)| int | string | length
                or states(entity_id) | length == states(entity_id)| float | string | length
              )
              and states(entity_id) | int < states.input_number.battery_alert_threshold_max.state | int
              and states(entity_id) | int > states.input_number.battery_alert_threshold_min.state | int
            )
            or states(entity_id) | lower == 'low'
            or states(entity_id) | lower == 'unknown'
            or states(entity_id) | lower == 'unavailable'
          )
        ) -%}
          {{ state_attr(entity_id, "friendly_name") }} ({{ states(entity_id) }})
        {% endfor -%}
        {% endmacro %}
        {{ battery_level() | trim == "" }}
    - service: input_boolean.turn_off
      data:
        entity_id: input_boolean.low_batteries
    - service: persistent_notification.dismiss
      data:
        notification_id: low_battery_alert

I wil wait some help!! :smiley: thanks a lot
Stefano

do you have that group in your states page? That seems to be the root cause of the issue.

Thanks a lot for your reply.
I can check if I have the group.battery_status.
Thanks a lot
Stefano

Petro i don’t have the group.battery_status in the states page, do you have some suggestion on how can i add it?

Add the battery_status group? I would assume it’s all the devices you want to get the battery status from.

yes i don’t have the group.battery_status in the status page, so how can i solve the problm?
Thanks a lot for you reply Petro.
i really appreciate
Stefano

Add the group…

thanks a lot petro.
i don’t know the script.
but i will study.