User level: Level 1 (4 points)i bought my iphone 17 in the first of march, and my life battery is at 91% after 307 cycles, should i be worried?
Posted on Oct 3, 2026 5:28 PM
User level: Level 10 (199,348 points)Oct 3, 2026 5:37 PM in response to aki_kaki
Ideally, Battery Health after 300 Cycles would be 94%.
The reason......on average, Battery Health will decline about 1% for every 50 Charge Cycles under ideal conditions. Unfortunately, Apple does not define what "ideal conditions" might be.....likely because every person uses their iPhone differently.
91% is not bad, but you are pushing the battery a bit harder than normal. Try cutting back a bit on the screen brightness and use Wi-Fi rather than cellular as much as possible.
Set up the battery to use Optimized Battery Charging and turn off any Charge Limit settings. More info on that in the link just below:
When to charge your iPhone or iPad - Apple Community
Originally posted at discussions.apple.com/thread/256369968