I found this article, which describes several mechanisms:
Quick summary:
On an iPhone 15 (and presumably later), the cycle count is available in the phone’s Settings.
- On iOS 17.4 and later, it’s in Battery → Battery Health
- On iOS 17.3 and older, it’s in General → About
On an iPhone 14 and earlier, there’s nothing conveniently built-in to iOS, but the article lists four ways:
- Retrieve the value from analytics data
- Go to Settings → Privacy & Security → Analytics & Improvements → Analytics Data
- Find a recent analytics report (one at least 24 hours old). Copy the text to something you can use to perform a search (e.g. a new note). Then search for
last_value_CycleCount
orbatterycyclecount
to find the value.
- Use the Battery Stats shortcut.
- Install the shortcut by visiting the above link from your phone
- Add it to the Shortcuts app
- Locate and open a recent analytics report (see above)
- Use the Share button to send it to the Battery Stats shortcut
- Use Coconutbattery on a Mac to pull the data from your phone
- Use iMazing on a Mac or PC to pull the data from your phone