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 Roundups: iOS 14, iPadOS 14
Related Forum: iOS 14

Top Rated Comments

ApfelKuchen Avatar
11 weeks 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
11 weeks 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
11 weeks ago
I am hoping this will be a good thing....can't make it worse...can it?
Score: 4 Votes (Like | Disagree)
JPack Avatar
11 weeks 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
11 weeks 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
11 weeks 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)

Top Stories

f1618938547

AirTags Feature IP67 Water Resistance, User Replaceable Battery That Lasts a Year

Tuesday April 20, 2021 11:52 am PDT by
At its jam-packed "Spring Loaded" event today, Apple finally announced its long-rumored item tracker, called AirTags. AirTags allow users to keep track of items such as their keys, bags, and more using the Find My network, and ultra-wideband technology. AirTags are small in design, and according to Apple, this small design means that it is water-resistant per the IP67 industry rating. An...
14

Apple Seeds RC Versions iOS 14.5 and iPadOS 14.5 to Developers

Tuesday April 20, 2021 11:13 am PDT by
Apple today seeded the RC versions of upcoming iOS 14.5 and iPadOS 14.5 updates to developers for testing purposes, with the new beta updates coming one week after Apple released the eighth iOS and iPadOS 14.5 betas. iOS and iPadOS 14.5 can be downloaded through the Apple Developer Center or over the air after the proper profile has been installed on an iPhone or iPad. iOS 14.5 is the...
macos big sur calendar

macOS 11.3 Could Ensure Your Mac is Fully Charged in Time for Calendar Events

Thursday February 18, 2021 9:05 am PST by
Apple appears to be planning a meeting-friendly improvement to its Optimized Battery Charging feature on the Mac in macOS 11.3. New code in the second beta of macOS 11.3, discovered by MacRumors contributor Steve Moser, suggests that the upcoming software update will ensure a Mac is fully charged to 100% prior to a scheduled calendar event, such as a meeting. macOS 11.3 will ensure that a ...
14

Apple Seeds Seventh Betas of iOS 14.5 and iPadOS 14.5 to Developers [Update: Public Beta Available]

Wednesday April 7, 2021 10:04 am PDT by
Apple today seeded the seventh betas of upcoming iOS 14.5 and iPadOS 14.5 updates to developers for testing purposes, with the new beta updates coming one week after Apple released the sixth iOS and iPadOS 14.5 betas. iOS and iPadOS 14.5 can be downloaded through the Apple Developer Center or over the air after the proper profile has been installed on an iPhone or iPad. iOS 14.5 is the...
16 inch macbook pro m2 render

Next-Generation 16-Inch MacBook Pro Seemingly Filed in Regulatory Database Ahead of WWDC

Thursday June 3, 2021 8:30 am PDT by
Apple is widely rumored to be planning new 14-inch and 16-inch MacBook Pro models, each with a mini-LED display and an improved iteration of the M1 chip. The notebooks are expected to feature a new design with a flatter top and bottom and more ports, including the return of an HDMI port, SD card slot, and a magnetic power cable. Rumors also suggest the Touch Bar will be retired in favor of...
ios 14 battery fix purple

iOS 14.5 Will Fix iPhone 11 Battery Drain Bug

Thursday April 8, 2021 3:19 am PDT by
Apple will resolve a long-standing battery drain bug on iPhone 11 models in the company's substantial upcoming iOS 14.5 update. Some iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max users have experienced a bug causing their batteries to drain unexpectedly, and in some cases, reducing the peak performance of their devices. Apple has now said that the inaccurate battery health reporting on...
important battery message iphone 11

Some iPhone 11 Users Seeing Increased Battery Health Percentages After iOS 14.5 Recalibration Process

Friday April 16, 2021 6:32 am PDT by
In the sixth beta of iOS 14.5, Apple introduced a recalibration process for the battery health reporting system on the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max to address inaccurate battery health estimates for some users. Apple said this process might take a few weeks to be completed, and now that two weeks have passed since the sixth beta of iOS 14.5 was released, some users are...
iPhone 13 Battery Life Feature

iPhone 13 to Finally Feature Bigger Batteries

Wednesday March 10, 2021 2:16 am PST by
Apple appears to be improving the iPhone's battery life with the iPhone 13 lineup, using a number of design changes, bigger batteries, and efficiency improvements. In a recent investor note seen by MacRumors, reliable analyst Ming-Chi Kuo explained that all four of the iPhone 13 models will feature larger batteries with higher capacities:The new 2H21 iPhone models feature a larger battery ...
maxresdefault

Apple TV+ Shares Trailer for Oprah and Prince Harry's Mental Health Docuseries

Monday May 17, 2021 5:35 am PDT by
Apple today shared the official trailer for "The Me You Can't See," a mental health documentary series from Oprah Winfrey and Prince Harry set to premiere May 21 on Apple TV+. In the series, Apple says Oprah Winfrey and Prince Harry host honest discussions about mental health and emotional well-being with singers, athletes, and other guests, while opening up about their own mental health...
iPhone 13 Battery Life Feature

iPhone 13 Lineup Appears to Feature Significantly Larger Battery Capacities

Tuesday June 1, 2021 7:10 am PDT by
A new rumor from Weibo, shared on Twitter by credible leaker l0vetodream, alleges to be the battery capacities for the upcoming iPhone 13 lineup, revealing that all of the 2021 iPhones will feature larger batteries. According to the rumor, the iPhone 13 Pro Max will feature a 4352mAh battery, compared to the current iPhone 12 Pro Max's 3687mAh battery. The iPhone 13 and iPhone 13 Pro will...