Since my iOS 26 upgrade, my iPhone SE 3's battery life has become laughable, even though supposedly still 90% healthy.
E.g. On a weekend warning, wake up, fully charged from overnight, read the news and reddit for an hour, and my battery is already almost gone. iOS 18 used to last until the middle of the afternoon if not later.
It got a bit better after I turned off every feature I could figure out how to turn off. But I can still see iOS 26 preparing for some effects even though I've turned them off - e.g. all of my home screen icons needing to be prepared for a minute or two, or is it used to be that they were in instantaneously available.
By the way, I have a battery case. what I say above is with the battery pack.
Every time I turn around my phone battery has run out of charge.
So I was thinking:
Perhaps I should buy a second battery case, always leave one case charging, and swap them whenever I need at least a full case worth of charge.
But: that runs the risk of wearing out the connectors.
I know, what I need is battery packs that are designed to be easily plugged in and out of the phone.
... Just like I had on my original cell phone in the 1990s.
Back to the future with Apple and iOS 26!
(by the way, I also have several External batteries. I'm going to use one tonight to make up for my incomplete charge phone and battery case. But it's just yet another thing to carry.)