Let me give you some information for comparison to see if this helps. My iPhone 11 Pro Max today.
- Removed from the Qi charger in my office at 4:27 PM
- Was on WiFi
- Taught class
- Drove home while listening to a podcast (10 minute drive)
- At home
- I am on WiFi as well.
- Screen on 5h 31m
- Screen off 1h 38m
- Played Grindstone (30% of my total battery usage) Note that it did not drain my battery by 30%. It was just 30% of the total usage this evening. I like to play while watching the news.
- Listened to podcasts (17% of my total battery usage).
- The rest is made up with a mix of different things.
The Battery settings also notes that my phone was at 100% until 6:30 (a full 2 hours after removing it from the charger).
So I have been off of the charger for 7.5 hours now and my battery is at 74%. At this rate it should last for 30 hours under the same usage load. This is typical for what I have been seeing over the 10 days since I got the phone.
What does your battery drainage curve look like over 24 hours?
One more question because I have to know: why don't you charge your phone while you are sleeping? If you are at all worried about battery life, I am dying to know why you don't take the 6+ hours per day when you are absolutely not using your phone to charge it.
Best,
Frank