I have had my 15 pro for almost a year now. My battery capacity was 98-100 for about half a year and the battery was good in general. Then it suddenly started draining fast and lasting less, I’d say I charge my phone 2-3 times a day… it suddenly went down to 90% capacity. I checked almost once a week and it drained VERY quickly
[Re-Titled by Moderator]
Original Title: battery
iPhone 15 Pro, iOS 18
It's not unusual to see a battery health drop of about 1% per month of ownership. So 10% in almost a year wouldn't be alarming. When you open Settings > Battery > Battery Health - how many cycles does it show? For your battery health to be in the 90% range, it would likely show around 500 cycles. On average for up to every 50 charge cycles, battery health can decline about 1%. Battery health decline is NOT linear, meaning it can remain steady for a while, then drop a few points.
A final note, Apple will only replace a battery under warranty, if Battery Health dips to 80% or less within the first 12 months of owning your phone. Keep in mind the more you use your phone and the harder you use it (like playing games, streaming videos, using the cameras, streaming music), the harder the battery works and the faster it depletes, needs to be recharged and it's health declines. Batteries are consumable parts. When the health of your battery dips to 80%, that's when you pay Apple to put a new battery in your phone and then the health game starts all over.
Things you should do:
It's not unusual to see a battery health drop of about 1% per month of ownership. So 10% in almost a year wouldn't be alarming. When you open Settings > Battery > Battery Health - how many cycles does it show? For your battery health to be in the 90% range, it would likely show around 500 cycles. On average for up to every 50 charge cycles, battery health can decline about 1%. Battery health decline is NOT linear, meaning it can remain steady for a while, then drop a few points.
A final note, Apple will only replace a battery under warranty, if Battery Health dips to 80% or less within the first 12 months of owning your phone. Keep in mind the more you use your phone and the harder you use it (like playing games, streaming videos, using the cameras, streaming music), the harder the battery works and the faster it depletes, needs to be recharged and it's health declines. Batteries are consumable parts. When the health of your battery dips to 80%, that's when you pay Apple to put a new battery in your phone and then the health game starts all over.
Things you should do:
I would say that if you are having to charge your phone 2-3 times a day, you must really be putting strain on that battery. And constantly checking on Battery Health will only increase your worry. The only time I ever look at my Battery Health is when I read something here about people wondering about their battery. I have an iPhone 16 Pro Max that I have had since release in September 2024. I just looked and my maximum capacity is still 100% with a cycle count of 146. I charge my device every night and have optimized charging activated. I've seen users here driving themselves crazy about the battery and obsess whenever it drops 1-2%.
Sudden battery capacity drop from 98-100% to 90% on iPhone 15 Pro
