iOS 14.5 Will Recalibrate iPhone 11 Batteries to Fix Battery Health Bug

Apple's iOS 14.5 beta that's currently in testing introduces a new process for recalibrating the battery health reporting on the iPhone 11, 11 Pro, and 11 Pro Max.

battery health recalibration
As outlined in a support document, Apple says that the update will recalibrate the maximum battery capacity and peak performance capacity on the ‌iPhone‌ 11 models to address inaccurate estimates of battery health reporting that some users have encountered.

Symptoms of this bug include unexpected battery drain behavior or in some cases, reduced peak performance capability. Apple says that the inaccurate battery health reporting does not reflect an issue with actual battery health.

Once the update is installed, ‌iPhone‌ 11 users will see a message in Settings > Battery > Battery Health about the recalibration process, which Apple says might take a few weeks.

Recalibration of maximum capacity and peak performance capability happens during regular charge cycles, and this process might take a few weeks. The displayed maximum capacity percentage will not change during recalibration. Peak performance capability might be updated, but this might not be noticeable by most users. If a previous degraded battery message was displayed, this message will be removed after updating to iOS 14.5.

When the recalibration is complete, the maximum capacity percentage and peak performance capability information will be updated. If the recalibration indicates that battery health has indeed significantly declined, users will see a battery service message.

In some cases, recalibration may not be successful and a battery service message will pop up. Apple says that it will replace these affected batteries free of charge to restore full performance and capacity.

Related Forum: iOS 14

Popular Stories

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
mac pro creativity

Apple Launched the Controversial 'Trashcan' Mac Pro 11 Years Ago Today

Thursday December 19, 2024 7:00 pm PST by
Apple launched the controversial "trashcan" Mac Pro eleven years ago today, introducing one of its most criticized designs that persisted through a period of widespread discontentment with the Mac lineup. The redesign took the Mac Pro in an entirely new direction, spearheaded by a polished aluminum cylindrical design that became unofficially dubbed the "trashcan" in the Mac community. All of ...
iPhone 17 Slim Feature Single Camera 2 Redux

Top 5 Apple Products to Look Forward to in 2025

Friday December 20, 2024 2:22 pm PST by
It's looking like 2025 is going to be an important year for Apple, with the company planning to revamp the iPhone, push further into smart home products, and improve Apple Intelligence. There are tons of new products rumored for 2025, including new iPhones, M4 Macs, a smart home command center, and much more. We've highlighted the top five Apple products that will have the biggest impact in...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...

Top Rated Comments

ApfelKuchen Avatar
49 months ago

So this is only for iPhone 11 and not 11 Pro models?
Skip the headline and read the first sentence of the article.
Score: 8 Votes (Like | Disagree)
now i see it Avatar
49 months ago
So that's why there's 10,000 "my battery health just dropped 5% in a day" threads in the iPhone forum
Score: 6 Votes (Like | Disagree)
subi257 Avatar
49 months ago
I am hoping this will be a good thing....can't make it worse...can it?
Score: 4 Votes (Like | Disagree)
JPack Avatar
49 months ago

I thought I had a bad battery with my XS as it was down to 84% capacity after 2.5 years, but then I checked cycle count and it was 850. Batteries are rated to 80% after 1000 cycles so it seems fairly close. I wish Apple would just show cycle count in the settings instead of having to find some debug tool on the computer. Apparently, though, iPhone 11 batteries should be better than that being a year newer. iPhone 12 is not supported with this, it seems, but they shouldn't have battery issues yet.
It's 500 cycles, not 1,000.
Score: 3 Votes (Like | Disagree)
thejadedmonkey Avatar
49 months ago
Is there a way to force this process to happen for non-iPhone 11 devices? At around 50% battery, my SE can drop 5% a minute, and then hang out at 13%-26% for hours.

But it still has 86% overall health.
Score: 3 Votes (Like | Disagree)
Ikertxo40 Avatar
49 months ago

My 11 Pro is down to 88% after a year and a half, which is shocking to me because I've never gotten below 95% on any previous phone after two years. I haven't changed my use or charging habits at all. Maybe this explains it.
Same here! My iPhone 11 pro, bought day 1, is at 88%. It was 92% before a couple of last updates, and dropped 4% in one shot!

My iphone x has 3 years and is at 86% using it the same way as the current 11 pro. I have warranty until september so if this continues dropping I hope I am at 80% before warranty is over, to ask for a free battery replacement!

I checked the cycles and the iphone x duplicates the 11 pro more or less, so i think my battery is deffective or so. Both iphones charged wirelessly at night with mophie 7,5w charger, sold by Apple.
Score: 2 Votes (Like | Disagree)