notification when a battery is (almost) fully charged

[jebeke65]

Checklist

• I have filled out the template to the best of my ability.
• This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

For all batteries, we have notifications that a battery needs to be replaced/charged.
I would be nice to have a notification/event when a chargeable battery is (almost) fully charged so we can unplug the battery from the mains.

Describe the solution you'd like

Raise an event/notification when a battery is (almost)fully charged

Describe alternatives you've considered

writing automations

Additional context

Unplugging the battery from the power supply

[andrew-codechimp]

Hi, there is a battery increased event already that could be used for this.
At the moment that takes a global value for when the increase should fire, if you set that to a high value you could use that.
I'll maybe think about adding an advanced option for overriding the global value per device in future.

[jebeke65]

Tx for the tip, but I'm still puzzled...

I want to get notified when the battery is fully loaded.
There is the battery_low_threshold to help without extra code, for the replacement/recharge action.
Wouldn't it be helpful to have a battery_high_threshold to help without extra code, for the stop charge action ?

[andrew-codechimp]

I think as it's very few devices you would want to automate like this most people handle them manually, you're the first to ask about it.

[dawidcieszynski]

I'd love to see this as well. A concrete use case from my setup:

I have several Aqara Roller Shade Driver E1 (RSD-M01) blinds. To recharge them I do a round of the windows with a single USB charger — plug one in, wait until it's topped up, then move the charger to the next one.

A "battery (almost) full" notification is exactly what would tell me when to move on, instead of repeatedly checking each device's battery level by hand.

I've already built this on my side in Node-RED (a notification that fires once the battery level crosses a high threshold, e.g. ≥95%), but having it available out of the box would be much cleaner.