Yo bro there is off ie when you off press on the bug and the light become red that is off and when you put the bug into the case the light (on the bug not the case light) will also turn red indicating off.
What you want is auto stop charging when full in the case is it? If that’s the case I have mixed review, there is times when I used and the bugs Low batt I put in it will charge to full and the buds light will off (I charged opening the case lip)
Then there are also times I put the buds into a fully charged case and didn’t use for more than a week, when I connect the bugs the bugs themselves are fully charged but my case is flat
Lastly got times as above fully charged case put in buds and didn’t use it for a week and when paired the buds are 56% charged but the case is flat
The sound quality from the T1X is quite amazing but I'm still having issues with the touch controls. Can't off manually.Have to put into the case after each run. The case can only charge 3 times even though when the case is low on battery, it should start flashing red. On one occasion when I took the buds out, the left side was flat. There was no warning to say the case battery was low.My next buds will probably be an Anker with button controls. Even my wifes cheapo TWS F9 V5 $20 can on & off the buds with the button controls but of course sound quality is just ok only. I highly suspect my T1X is a quality issue so my next will be one with 12mths local warranty. I tried the Lypertek at Jaben. Quite impressed but I still think the T1X sound quality is much better. Most likely will wait for availability of Anker Soundcore Spirit Dot 2 locally then will order to try.