My Iphone 14 pro decreased battery health so fast

Hey there, Gher29,

Thanks so much for using Apple Support Communities.

We're sorry to hear that you're experiencing issues with your iPhone 14 Pro battery health. We have a support article that outlines some common causes for this issue and provides steps for troubleshooting. You can find the article at the following link: Batteries - Maximizing Performance - Apple It includes tips for optimizing battery life, checking battery health, and what to do if you need to replace your battery.

We hope this information helps!

Cheers.

Please define what you mean by “so fast”. A capacity loss of 1-2% a month is normal.

Batteries are consumables; they lose a little capacity every time they are discharged, then recharged. On average this works out to about a 1% loss for every 25 “full charge cycles”. As one example, if you charge the phone overnight, every night (and that is what you should do; it is a best practice), it starts the day at 100%. If it drops to 20% by the end of the day before you charge it again overnight that counts as 0.8 full charge cycles (20% to 100%), or about 24 full charge cycles per month of use. For this example your battery capacity will lose about 1% per month. Of course, if the end-of-day level is higher than 20% the capacity loss will be a little less, and if it is lower than 20%, or you charge it during the day, the capacity loss will be higher.

Once the capacity drops below 80%, or if there is a message in Battery Health that the battery is not meeting peak performance expectations, it’s time to change the battery→iPhone Battery Replacement - Official Apple Support

The absolute best way to get maximum use on a charge, as well as slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the nighttime pause the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates. Here's more information→About Optimized Battery Charging on your iPhone - Apple Support

I'm experiencing the same issue in my iPhone 14 Pro.

I've powered it on for the first time on October 17 in 2022, low power mode is always enabled, all the unnecessary services and connections are turned off, I charge it only once per day and I turn it off before going to sleep. I always install iOS updates as soon as they're available and Optimized Battery Charging is always enabled.

Battery health went down to 99% after 11 months (which is a good thing, I presume) on September 17, but after installing iOS 17 the battery health has dramatically dropped down to 94% in 2 months.

I know that batteries degrade over time, but such a capacity depletion does not look like to be normal. I've had a similar experience with my previous iPhone 12, whose battery's health dropped down by 11 percentage points after 11 months since the first time it was powered on, going from 98% to 89% in three months only.

The way I use my iPhone and the way I charge it has always been rated as excellent by the Apple Technicians I've talked to: I don't think that such a battery health's degradation could be considered totally normal.

My 9 months old iPhone 14plus battery health is decreasing day by day. I just use it for daily works not even gamer please apple give a solution what’s the issue

You are not talking to Apple. This is a user forum. What does say in Settings>Battery>Battery Health?