[sov]

> Firstly, they only slowed down older phones to prevent them from crashing as they had less and less reliable battery draw

I see this posted a lot and I honestly just don't buy it.

Processor power draw for most high-priority OS tasks (eg: keyboard input) are virtually zilch compared to keeping the screen lit for that much longer.

Everything says this happens to older phones, not phones with high usage. If you get the battery replaced--will Apple speed up the phone again? If I am on my iPhone 24/7 and constantly discharge down to 5% SOC, how come Apple doesn't slow down my phone more than someone with scarce use?

Even unreliable power draw makes no sense. You may be not able to predict the SOC from the OCV of the cell as accurately as SOH diminishes than when it's 100%, but cell phones largely use lithium cobalt oxides which have well-defined OCV:SOC curves! There should be no need to guess how close to a low SOC you are--you can just read the OCV.

[procinct]

I definitely don’t know as much about batteries as you clearly do but yes, the phone will return to normal clock speed after a battery change. It keeps being reported as “older phones” but it’s really more like older batteries.