This consists of 3 Flows and 1 Widget. To enable/disable the feature, just enable the "Enable/disable Phone battery level on charge" flow. The other two flows are managed automatically.
When you connect your phone to a charger, the flow will enable the other two flows. Those will update the widget with the current battery level (of the phone's battery) and display it on your Android Wear watch.
When your phone reaches 100%, the watch will vibrate and display a message.
When you disconnect the phone from the charger, the widget will disappear and the two flows will be disabled again.
http://automagic4android.com/flow.php?i ... 4ee0a79017
Show phone battery level on watch when charging
Moderator: Martin
Show phone battery level on watch when charging
BlackBerry KEY2, Android 8.1.0