DJBenson

mqtt:
  sensor:
    - name: "GivTCP <Your Serial> Invertor Details GivTCP Battery Voltage"
      unique_id: <Insert a UUID>
      force_update: true
      icon: mdi:flash-triangle-outline
      device_class: voltage
      state_class: measurement
      qos: 0
      unit_of_measurement: "V"      

DJBenson

 mqtt: 
  sensor: 
    - name: "GivTCP <Your Serial> Invertor Details GivTCP Battery Temperature"
       unique_id: <Insert a UUID>
       state_topic: "<Your GivTCP Prefix>/<Your Serial>/raw/invertor/temp_battery"
       force_update: true
       device_class: Temperature
       unit_of_measurement: "°C"
       state_class: measurement
       icon: "mdi:thermometer"