I woke up one morning and found that the battery on my 6-month-old iPhone 11 had drained down to 34% overnight.
I knew that something was wrong, but the diagnostics showed that the battery was okay.
So watched the above video: It turns out that there are numerous default settings on the iPhone 11 that drain power in the background.
Shut them off, and you’ll see a dramatic increase in battery life. (For example: Do you really need that stock market update widget?)
I implemented the suggestions in this video, and my battery’s performance has improved by about 80%.
If you’re an iPhone person, this is worth watching—all 15 minutes of it. I do not know these guys. (I’d never even heard of them before.) But they know their stuff.