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
11 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
11 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
11 months ago
70% on my iPhone 12 Pro. Holding out until the new phones this fall!
Score: 3 Votes (Like | Disagree)
iToph Avatar
11 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
11 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
11 months ago
100% on 14Pro Max. (since September 2022)
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 18

Apple Says iOS 18.4 Will Be Released in April With These New Features

Wednesday February 26, 2025 7:15 am PST by
In a recent press release, Apple confirmed that iOS 18.4 will be released in April. From the Apple News+ Food announcement:Coming with iOS 18.4 and iPadOS 18.4 in April, Apple News+ subscribers will have access to Apple News+ Food, a new section that will feature tens of thousands of recipes — as well as stories about restaurants, healthy eating, kitchen essentials, and more — from the...
Generic iPhone 17 Feature With Full Width Dynamic Island

Latest iPhone 17 Series CAD Images in Line With Redesign Rumors

Friday February 28, 2025 2:51 am PST by
Apple is expected to embrace a new camera system design for some models in its upcoming iPhone 17 series, and the latest purported CAD images don't deviate from what we have been hearing lately about Apple's new lineup. If you do not like the sound of an iPhone with a Google Pixel-style camera bar, look away now. Seasoned leaker Sonny Dickson shared the following images in a post on X...
iphone 16e usb c feature

Apple Provides Reason for iPhone 16e's Lack of MagSafe

Friday February 28, 2025 4:39 am PST by
Apple has offered a reason why the iPhone 16e doesn't include MagSafe, one of the more notable omissions from its latest entry-level smartphone. According to Apple representatives who spoke to Daring Fireball's John Gruber, MagSafe is not included in the iPhone 16e because "most people in the iPhone 16e's target audience exclusively charge their phones by plugging them into a charging...
apple intelligence black

These New Apple Intelligence Features Are Coming in iOS 18.4

Friday February 28, 2025 3:17 pm PST by
iOS 18.4 was supposed to bring new Apple Intelligence Siri features, but Apple ended up needing to pull those capabilities from the update to continue testing. There are fewer new Apple Intelligence additions now, but there are still some new features that will make the update worth installing when it comes out in April. Priority Notifications Apple introduced Priority Notifications back at ...
Generic iOS 19 Feature Mock Light

iOS 19 Rumored to Include These New Features for Your iPhone

Saturday March 1, 2025 11:00 am PST by
iOS 19 is still around three months away from being unveiled, but there are plenty of rumors about the upcoming update. Below, we recap iOS 19 rumors so far. Redesigned Camera App A leak earlier this year allegedly revealed a redesigned Camera app coming with iOS 19. On his YouTube channel Front Page Tech in January, Jon Prosser shared a video showing what the new Camera app will...
cook trump

Trump Responds to Apple Keeping Diversity Policies

Wednesday February 26, 2025 6:32 am PST by
In an all-caps post on Truth Social today, U.S. President Donald Trump said Apple should fully end its diversity, equity, and inclusion (DEI) policies. Tim Cook meeting with President Trump in 2017 "APPLE SHOULD GET RID OF DEI RULES, NOT JUST MAKE ADJUSTMENTS TO THEM," he wrote. Trump's post comes one day after Apple held its annual shareholders meeting, during which a majority of...
apple watch ultra snow

6 Features Coming to the Apple Watch Ultra 3

Tuesday February 25, 2025 9:00 am PST by
The Apple Watch Ultra 3 is expected to launch later this year, arriving two years after the previous model with a series of improvements. While no noticeable design changes are expected for the third generation since the company tends to stick with the same Apple Watch design through three generations before changing it, there are a series of internal upgrades on the way. By the time the ...
airpods pro purple

Here's When AirPods Pro 3 Are Rumored to Launch

Monday February 24, 2025 9:14 am PST by
According to a post on X today from a leaker known as Kosutami, Apple plans to launch AirPods Pro 3 in May or June this year. The leaker also claimed that an AirTag 2 will launch around the same time. Kosutami is best known as a collector of prototype Apple hardware, but they have occasionally shared accurate information about Apple's future product plans. For example, they accurately...
apple c1

How Fast is Apple's First-Ever 5G Modem? The Results Are Surprising

Friday February 28, 2025 10:08 am PST by
iPhone 16e reviews are now out, and Apple's custom-designed C1 modem has been put to the test. The results so far are quite surprising, as the C1's speeds are not as slow compared to Qualcomm modems as originally expected. While the C1 does not support ultra-fast mmWave 5G in the U.S., it appears to offer comparable 5G performance to Qualcomm's Snapdragon X71 modem found in the iPhone 16,...