> The phone’s battery health held up reasonably well. After over a year of constant operation, it’s at 76% capacity. I have an iPhone SE that I've tried keeping plugged in all the time and its battery has turned into a spicy pillow three times, first with Apple replacing the whole device (since they won't touch it with a swollen battery), then using third-party replacement kits. This isn't going to work for long if t…
Most of these devices can't run "without touching the battery" because the external supply can't provide the required peak current, so during some CPU burst it would shut off. I've seen hacks that replace the battery with a supercapacitor though.
It really seems like, if it weren't for the battery part, these phones could run for decades... but right now you have to replace the battery every couple years because it swells when constantly kept at 100% which it is not designed for.