5 ms·
The concern here is that Apple had other motivations for this change besides just reliability. Stepping back a bit, I don’t recall hordes of reports of random
by varenc 9y ago
The concern here is that Apple had other motivations for this change besides just reliability.
Stepping back a bit, I don’t recall hordes of reports of random iPhone shutdowns in early 2017, but it certainly did happen some of the time. This update slowed down every iPhone with an old battery regardless of if that user was ever really likely to experience random shutdowns. The fact that Apple obscured this change also makes it a bit more suspect.
- zaksoup 9y agoI'm pretty sure this isn't true. I believe the update slowed batteries down based on their available peak voltage, which would be the difference for a user likely to experience shutdowns. Anecdotally my iPhone 6 seemed not to have a defective battery and was significantly more responsive than my dad's iPhone 6 purchased within a week of mine. This (again, anecdotally) seems to support apple's claims that they were not solely using 'age of the battery' to determine whether or not throttling was necessary. > This power management works by looking at a combination of the device temperature, battery state of charge, and battery impedance. Only if these variables require it, iOS will dynamically manage the maximum performance of some system components [0] https://support.apple.com/en-us/HT208387 https://support.apple.com/en-us/HT208387
- MBCook 9y agoDon’t forget the story blew up over the winter, when batteries perform worse. An especially cold winter. Could just be timing/environmental compared to when the original change was released.