I'm not going to say that you're wrong. But... so far, I've read this kind of post every week with and with every single update we've released. I none of these cases (except when we activated the double knock to retract the camera feature) have we made any changes that should/could have negative impact on the battery.
In fact, I want to remember that basically every user who has brought this up, has later found that it was an app that they installed during the same time or that they fixed their issue with a factory reset. You can always find someone else who thinks their battery life has gone down too. If this was really the case, then you would see not two or three others that agree but page after page with angry users.
So... before we jump to the conclusion that Android Q have had a negative impact on your battery, let's try to see if we have an app that could be the cause of this. The first test is to leave your phone in flight mode overnight without charging the phone. If you lose more than a couple of percent (3-6% is ok), then there might be something wrong. If you don't lose more, then continue to test #2
Go to system settings -> battery -> PowerMaster -> Auto-start manager. Here you need to remove the permission to auto restart for apps you don't fully trust. Especially those you have installed recently. When you have done this, kill all apps.
If your battery life i still not better, then I'm sorry but you will need to start from scratch with a factory restart.
If the factory restart doesn't help, then we need to log your phone to find out why it drops battery life much faster.
_jis_I described the previous AccuBattery battery statistics (above) 3 days after the update to A10.
I didn't test the battery capacity after the update, I just use my phone the same day after day and after updating to Android 10, AccuBattery shows me approx. the same battery statistics as with the previous version of Android but shows me a greater percentage of deep sleep at night which is better. Hence my feeling that battery isn't any worse than previously.
Screen on 12h 43m
Screen off 120h 52m
Combined use 56h 39h
Anveshits gcam.. remove it and restart...
Even i am facing the battery drain issue a lot after updating to android 10, not even getting one day.
I also, removed the permission, auto restart for all the apps. (Go to system settings -> battery -> PowerMaster -> Auto-start manager.)
Every 15 mins i am getting the below issue
When i click on it, it was not even opening so that atlest i can stop the services.
This app is not related to anyone of my apps which is installed, this look device\preloaded app.
It would be great if some one help on this ?