I Hate That Batteries Degrade
Yes, I know why they degrade and yes, I know there are various ways to prolong their lifespan, though often I'd argue that these techniques aren't worth your effort and it is preferable to just use the battery in a way that is convenient to you.
That doesn't change that it is very inconvenient that their capacity degrades over time. I feel it quite a lot as most of my devices are now old and heavily used, with some of them being gifted to me when the original user upgraded.
I swear I'm always grabbing a device around the house and the damn thing is nearly flat. Doesn't help that I'm shit at plugging things in. I've started leaving an iPad always connected to the charger in my office so it is available to refer to synthesiser manuals or play music, but then I'm concerned eventually they will swell and go bang!