Low Battery Notification Tip

Installation Home Assistant OS
1

Do future-self a favor and include what size battery is needed in your low battery notification. I know I won’t remember any of them when the time comes.

This is what I put in the Automation action of my Aqara door/window sensor.

service: notify.gmailer
data:
  message: >-
    The front door sensor has a low CR1632 battery at {{ now().strftime("%a
    %-m/%-d/%Y %-I:%M:%S %p") }}
  title: 'Front door sensor low battery alert'
2

Would be nice if this was dynamic

3

You could do that, use customizing to add an attribute for the battery size, and then use that in the template.

4

I’m less than a month into this HA world. Are you saying that I can just make up what that document lists as configuration variables? I’ve already put custom icons for my scrape sensors using that document. I haven’t gotten into templates yet.