Apple iOS 17.4 update could help you maintain your iPhone 15 battery for longer

iPhone 15 Pro review USB-C angled handheld
iPhone 15 Pro (Image credit: Future | Alex Walker-Todd)

Apple will introduce changes to how battery information is displayed on the iPhone 15 series as part of the imminent iOS 17.4 update, replacing the Battery Health & Charging menu with an expanded Battery Health menu and more detailed sub-menu.

Details of the new Battery Health menu include the battery's maximum capacity percentage being swapped out for the status of your battery; which is rated as “normal” if the battery is functioning as expected. Changes coming with the new menu include the battery's maximum capacity percentage being swapped out for a battery status report, with the power pack rated as ‘normal’ if the battery is functioning as expected.

Users will also be able to access a detailed breakdown of the number of charging cycles completed – a figure that Apple now quotes as double what it was when the iPhone 15 series launched. Other helpful information, including the battery's manufacture date and the date of its first use, is also included – these details were previously buried in the About page within Settings.

Apple has also further tested the iPhone 15 series and now claims that their batteries should retain 80% of their maximum capacity (or higher) after 1,000 charge cycles, as opposed to 500, as was quoted at launch. Older iPhones are still quoted as holding around 80% charge after 500 cycles. 

iPhone 15 showing new battery settings from iOS 17.4

Charge cycles now feature on the Battery Health screen in iOS 17.4 (Image credit: Apple)

As mentioned, the new feature will only roll out to the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max for now; however, Apple is also testing select older models, so there’s potential for the quoted charge cycle figure to increase on other iPhones in future.

The iPhone 15 existing charging optimization settings appear the same and should still help maintain the battery's health over time, by learning user usage habits and capping charging past 80% (if enabled), thus reducing the time the battery spends at a higher charge.

This welcome update is currently in beta, and while the exact full release date for iOS 17.4 is yet to be confirmed according to Apple it’ll be March this year to comply as part of a large update and a host of changes required for new European Union regulations as part of the Digital Markets Act (DMA). 

iOS 17.4 is expected to include a host of other new features, including improvements to Stolen Device Protection and new emojis, that will impact a wider range of iPhones.

While the chipsets used in phones are becoming more energy efficient, there’s still only so much that Apple or any phone maker can do to improve battery life and performance, as all batteries degrade over time and use.

The lifespan of a phone’s battery depends on many factors, including which settings are enabled or disabled (features like always-on display and app updates over cellular, for example). Optimised Battery Charging can help prolong the lifespan of the battery, but if it does stop functioning properly it may need to be replaced by Apple or an Apple Authorized Service Provider.

You may also like

Staff Writer, Mobile Computing

James Ide was a writer for TechRadar specializing in phones and tablets, having previously worked at The Daily Mirror since 2016, covering news and reviews.  

James loves messing with the latest tech, especially phones due to their incredibly rapid pace of development.

When not surrounded by various devices and/or tinkering with gadgets while putting them through their paces, James has a love of handheld consoles.

He is almost the textbook definition of a geek, who loves sci-fi, comics, games and of course, all things tech. If you think you have a story for him or just want to challenge him at Smash Bros, get in touch. 

With contributions from
Read more
Apple iPhone 16 Plus Review
iPhone 17 Air leaks suggest it'll get next-gen battery – and offset the 17 Pro Max's weight gains
An iPhone 15 Pro Max held in the hand
iPhone 17 Air – 5 key rumored features, from an ultra-thin frame to so-so battery life
Apple iPhone 16 Pro REVIEW
Apple could give the iPhone 17 Pro a super-useful reverse wireless charging feature
Apple iPhone 16 Pro Max REVIEW
The iPhone 17 Air and Samsung Galaxy S25 Slim could both come with one main drawback
Apple iPhone 16 Review
I’ve got two fresh iPhone 17 rumors for you, but one of them stinks
iPhone 12
The iPhone 17 Air could come with a key charging benefit, new leak claims
Latest in iPhone
Apple iPhone 16 Review
New iPhone 17 report lends weight to rumors of major display and camera upgrades, and a pricey Apple foldable
Apple iPhone 16 Review
The latest iPhone 18 leak hints at a major chipset upgrade for all four models
Google Pixel 9 Pro Fold main display opened
Apple is rumored to be prioritizing battery life on the foldable iPhone – which could also feature a liquid metal hinge for added durability
The home screen on an iPhone 16e smartphone
I think the iPhone 16e is too expensive – and as it turns out, so does nearly everybody else
Apple iPhone 16 on orange background with big savings text overlay
You can get a free iPhone 16 Pro Max without a trade at Verizon right now - with one minor catch
Apple CEO Tim Cook
Forget Siri, Apple needs to launch a folding iPhone and get back on track
Latest in News
Samsung HW-Q990D soundbar with Halloween theme over the top
Samsung promises to repair soundbars bricked by its disastrous software update for free – but it'll probably involve shipping
Google Gemini AI
Gmail is adding a new Gemini AI tool to help smarten up your work emails
DJI Mavic 3 Pro
More DJI Mavic 4 Pro leaks seemingly reveal launch date, price and key features of the triple camera drone – here's what to expect
Android 16 logo on a phone
Here's how Android 16 will upgrade the screen unlocking process on your Pixel
Man sitting on sofa, drinking coffee, looking at phone in surprise
Thousands of coffee lovers warned to stop using their espresso machines immediately after reports of burns and lacerations
Visual Intelligence identifying a dog
AirPods with cameras for Visual Intelligence could be one of the best personal safety features Apple has ever planned – here's why