Report/Detect devices with high battery temperature

BatteryTemp.yaml

blueprint:
  name: BP-Battery Temp Checker
  description: Regularly test any entity with the "battery" string, for high temp!
  domain: automation
  input:
    repetition:
      name: How often to run
      description: Test is run at this intervall, in minutes. You MUST use the slash notation; 0-59 minutes.
      default: '/30'
      selector:
        text:
          multiline: false
    max_temp:
      name: Max Temp
      description: Temperature at which alarm is generated
      default: '40'
      selector:
        number:
          min: 20
          max: 80
    exclude:
      name: Excluded Sensors
      description: >
        There are some weird sensors out there, we might want to ignore. 
        Only entities are supported, devices must be expanded
      default: []
      selector:
        target:
          entity:
            device_class: temperature
    exclude_regexp:
      name: Excluded Sensors, RegExp
      description: >
        There are some weird sensors out there, we might want to ignore. 
      default: 'DontMatchAnySensorsAtAll'
      selector:
        text:
          multiline: false
    actions:
      name: Actions
      description: 'Notifications or similar to be run. {{sensors}} is replaced with the names[] of devices indicating high temp'
      selector:
        action: {}
variables:
  exclude: !input 'exclude'
  exclude_regexp: !input 'exclude_regexp'  
  max_value: !input 'max_temp'
  sensors: >-
    {%- set result = namespace(sensors=[]) -%}
    {%- for s in states.sensor | selectattr('attributes.device_class', '==', 'temperature') -%}
      {%- if (s.entity_id is search("battery") and (not s.entity_id in exclude and not s.entity_id is search(exclude_regexp))) and s.state|float > max_value|float -%}
        {%- set result.sensors = result.sensors + [s.entity_id] -%}
      {% endif -%}
    {%- endfor -%} 
    {{result.sensors}}
trigger:
- platform: time_pattern
  minutes: !input 'repetition'
condition:
- '{{ sensors|length != 0 }}'
action:
- choose: []
  default: !input 'actions'
mode: single