Originally Posted by
Rukbat Android System is most of Android, so no.
However, you may be reading that 39% wrong - it's not 39% of the battery capacity, it's 39% of the total used by all apps. If not many apps are using the battery (say, because the phone's been sitting idle for hours), that 39% may be 39% of a total battery usage of 1% or 2% of the battery's capacity. In other words, 0.039% or 0.078%, of the battery.
If you're in the middle of an action game for a few hours, that screen may show 1%, or 0%.
I had an update a week ago and then here comes 5G. All of a sudden my battery just crashes. I can't even go a full day anymore. I've deleted apps I don't use, I've turned off most notifications as well.
Then out of nowhere I'm now getting notifications that wake my screen up. I only wanted 1 app to do that and all of them must have cried Anarchy and revolted against me.
I'm just at a loss. I honestly do not remember what I did last time this happened and I got it to stop draining.