Owners of the new iPhone 15 don’t have to make an effort to see battery usage information – there’s a new section in Settings for that.
As noted in message @Tech_Revea new section (Settings – General – Pro) in iOS 17 displays how many charge cycles your battery has gone through, as well as the date it was manufactured and the time it was first used.
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Previous methods for checking iPhone battery cycle count were informal (through third-party programs like CoconutBattery for Mac) or complicated, such as copying and pasting analytics into Notes and searching for “last_value_CycleCount.”
Battery Information is an addition to the new option in the Battery Health & Charging menu, which stops charging the smartphone when it reaches 80%.
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Source: The Verge, Macrumors