I have made automations to stop charging Phone, Tablet and smartwatch at 80% battery capacity. I hope to increase the life-time of the batteries by doing this. I was having the problem that the battery level for my Pixel watch was only updating once an hour. This meant I could not capture the moment it was at 80% charge. It always charged to 100%. Then I found I could “force” sensor update by sending a notification to the device. By sending “command_update_sensors” to the watch, the battery level is updated. I run the following every 1 minute when the battery is being charged:
action: notify.mobile_app_google_pixel_watch_04bg
data:
message: command_update_sensorsThis allows me to trigger switching off the charger at 80%, and stop sending the command every minute. When the battery is not being charged, I send the command every 10 minutes to better catch the 25% level that will trigger the charge cycle.
