Earlier this year, Apple retested the batteries of its iPhone 15 models and updated its battery life claims for the entire series, suggesting that they offer better longevity than previously thought. Curious about the battery health of your iPhone 15? Here's how to check it.

iPhone 15 USB C Port Event Still
Apple in February 2024 updated the technical specifications for the batteries in the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max. According to its latest tests, Apple says that the devices' batteries are designed to retain 80% of their original capacity at 1,000 complete charge cycles under ideal conditions.

It's a significant improvement over the 500 charge cycles that the company advertises for all older iPhone models over the same cycle count.

iPhone 15 models also include a Battery Charging Optimization feature, so if you regularly charge your ‌iPhone‌ up at night while you're asleep, the device can limit its charging to 80%, and then wait for an hour or so before you wake up to charge the remaining 20%. This keeps the ‌iPhone‌ at an optimal capacity for battery health by reducing the amount of time that it's sat on your charger at 100% charged, which can reduce its life over time.

If you have an iPhone 15 with iOS 17.4 or later installed, you can get more specific information on the battery health of your device in the following way:

  1. Open the Settings app.
  2. Scroll down and tap Battery.
  3. Check the readout next to "Battery Health." For more details including your device's battery cycle count, manufacture date, and first use date, simply tap the readout. (In earlier versions of iOS 17, this information was hidden in the General ➝ About section of the Settings app).

settings

Apple says that the battery lifespan of any iPhone model ultimately depends on how the device is regularly used and charged. While the "Maximum Capacity" readout will give you a good indication of your iPhone's battery health, it's worth tapping on the blue text that says "About Battery & Warranty," which will give you more information on the likely battery lifespan of your device based on how it's used.

Battery life depends on a number of variables, but if you think you have an issue, it's worth remembering that the standard one-year AppleCare+ warranty on an iPhone includes service for defective batteries. Depending on where you are, local consumer laws might even give you cover beyond the standard 12 months, so don't be shy to ask at an Apple Store if you think there's a problem.

Top Rated Comments

sw1tcher Avatar
15 months ago

Here's How to Check Your iPhone's Battery Health
Step 1: Buy an iPhone 15

:rolleyes:

That's where you lost me.
Score: 14 Votes (Like | Disagree)
falkon-engine Avatar
15 months ago
I've been using the charge to 80% feature and it would appear that my battery has been liking it. Occasionally the phone charges to 100% probably like 1x or 2x a month. Battery life still at 100% after approx 192 cycles.
Score: 3 Votes (Like | Disagree)
Xavier Avatar
15 months ago
70% on my iPhone 12 Pro. Holding out until the new phones this fall!
Score: 3 Votes (Like | Disagree)
iToph Avatar
15 months ago
Launch day 15 pro Max 225 cycles still at 100% with daily charge 100%

Attachment Image
Score: 2 Votes (Like | Disagree)
Egnat69 Avatar
15 months ago

I've been using the charge to 80% feature and it would appear that my battery has been liking it. Occasionally the phone charges to 100% probably like 1x or 2x a month. Battery life still at 100% after approx 192 cycles.
It does make a ton of difference. I‘ve wanted that feature forever. Been manually limiting my Pro 13 to about 80% every time I charge it (except for the occasional falling asleep while charging accident) and it sits at 94% battery health after over 2 1/2 years of daily usage.
Score: 2 Votes (Like | Disagree)
Zyhon Avatar
15 months ago
100% on 14Pro Max. (since September 2022)
Score: 1 Votes (Like | Disagree)

Popular Stories

iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro to Reverse iPhone X Design Decision

Monday July 7, 2025 9:46 am PDT by
Since the iPhone X in 2017, all of Apple's highest-end iPhone models have featured either stainless steel or titanium frames, but it has now been rumored that this design decision will be coming to an end with the iPhone 17 Pro models later this year. In a post on Chinese social media platform Weibo today, the account Instant Digital said that the iPhone 17 Pro models will have an aluminum...
iphone 16 pro models 1

Here's How the iPhone 17 Pro Max Will Compare to the iPhone 17 Pro

Saturday July 5, 2025 1:00 pm PDT by
Apple should unveil the iPhone 17 series in September, and there might be one bigger difference between the Pro and Pro Max models this year. As always, the Pro Max model will be larger than the Pro model:iPhone 17 Pro: 6.3-inch display iPhone 17 Pro Max: 6.9-inch displayGiven the Pro Max is physically larger than the Pro, it has more internal space, allowing for a larger battery and...
iOS 26 Feature

Everything New in iOS 26 Beta 3

Monday July 7, 2025 1:20 pm PDT by
Apple is continuing to refine and update iOS 26, and beta three features smaller changes than we saw in beta 2, plus further tweaks to the Liquid Glass design. Apple is gearing up for the next phase of beta testing, and the company has promised that a public beta is set to come out in July. Transparency In some apps like Apple Music, Podcasts, and the App Store, Apple has toned down the...
imac video apple feature

Apple Launching These 15+ Products Later This Year

Sunday July 6, 2025 8:05 am PDT by
The calendar has turned to July, meaning that 2025 is now more than half over. And while the summer months are often quiet for Apple, the company still has more than a dozen products coming later this year, according to rumors. Below, we have outlined at least 15 new Apple products that are expected to launch later this year, along with key rumored features for each. iPhone 17 Series iPho...
iPhone Car Key Kia

Here's Which Vehicles Offer iPhone Car Keys

Sunday July 6, 2025 3:03 pm PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. Apple has a web page with a list of vehicle models that ...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Coming Soon With These 14 New Features

Friday July 4, 2025 1:05 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are just over two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models. Latest Rumors These rumors surfaced in June and July:Apple logo repositioned: Apple's logo may have a lower position on the back of the iPhone 17 Pro models, compared to previous...
iphone 17 pro render majin bu

New iPhone 17 Pro Renders Highlight Apple Logo and MagSafe Design Changes

Sunday July 6, 2025 8:43 pm PDT by
New renders today provide the best look yet relocated Apple logo and redesigned MagSafe magnet array of the iPhone 17 Pro and iPhone 17 Pro Max. Image via Majin Bu. Several of the design changes coming to the iPhone 17 Pro model have been rumored for some time, such as the elongated camera bump that spans the full width of the device, with the LiDAR Scanner and flash moving to the right side. ...
iPhone 14 Pro Dynamic Island

iPhone 17 Models Rumored to Feature Redesigned Dynamic Island

Monday July 7, 2025 7:38 am PDT by
iPhone 17 models will feature a redesigned Dynamic Island user interface, according to a post today from Digital Chat Station, an account with more than three million followers on Chinese social media platform Weibo. The account has accurately leaked some information regarding future Apple products in the past. The account did not share any specific details about the alleged changes that are ...