I disconnected it from charging while playing it for 7-8 hrs with DSD remastering turned on. I enabled battery saving feature so that it doesn't charge beyond 87%.
So my routine was to let it play until it reaches 20%, then charge it. then let it play until it reaches 20% and so on. Very soon, clocked 200 hours. Even during the burn-in process, the sound was enjoyable. after 200 hours, it is excellent. Also as mentioned by other users, the DSD remastering, DSEE ultimate etc are tastefully done. So when you feel like it, you can listen to it in direct mode. At other times, try the other options. Worth having these variety of options