Battery Template Sensor

Configuration
1

I have the following code in my sensors.yaml file to derive a list of all entities where their state is below 25%, but its not showing the list of devices in attributes

Any help would greatly be appreciated

- platform: template
  sensors:
    low_battery_devices:
      friendly_name: "Low Battery Devices"
      icon_template: mdi:battery-alert
      value_template: >
        {% set threshold = 25 %}
        {% set low = states.sensor
          | selectattr('entity_id','search','battery')
          | selectattr('state','is_number')
          | selectattr('state','lt', threshold|string)
          | list %}
        {{ low | count }}
      attribute_templates:
        devices: >
          {% set threshold = 25 %}
          {% set low = states.sensor
            | selectattr('entity_id','search','battery')
            | selectattr('state','is_number')
            | selectattr('state','lt', threshold|string)
            | list %}
          {{ low | map(attribute='name') | list }}
2

you have to convert the states to numbers in order to perform that comparison.