With the new battery widget introduced in the newest oneUI it would be amazing if it showed all of my connected devices such as my tablet on it. And with persistent notifications as well (show the last connected battery state of my galaxy even if they aren't connected) as when I don't have all my devices connected I just get blank circles.
I would love to see it also for the samsung powerbank. And attach is with the Routines, so that we can program reminders to charge under a certain level.