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 Lower Logo Feature 1

iPhone 17 Pro Coming Soon With These 14 New Features

Monday June 30, 2025 1:08 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are less than three months away, and there are plenty of rumors about the devices. Apple is expected to launch the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max in September this year. Below, we recap key changes rumored for the iPhone 17 Pro models:Aluminum frame: iPhone 17 Pro models are rumored to have an...
Apple Watch Ultra Night Mode Screen

Apple Watch Ultra 3 Launching Later This Year With Two Key Upgrades

Wednesday July 2, 2025 1:13 pm PDT by
The long wait for an Apple Watch Ultra 3 appears to be nearly over, and it is rumored to feature both satellite connectivity and 5G support. Apple Watch Ultra's existing Night Mode In his latest Power On newsletter, Bloomberg's Mark Gurman said that the Apple Watch Ultra 3 is on track to launch this year with "significant" new features, including satellite connectivity, which would let you...
iPhone 17 Pro Lower Logo Magsafe

iPhone 17 Pro's New MagSafe Design Revealed in Leaked Photo

Wednesday July 2, 2025 8:37 am PDT by
The upcoming iPhone 17 Pro and iPhone 17 Pro Max are rumored to have a slightly different MagSafe magnet layout compared to existing iPhone models, and a leaked photo has offered a closer look at the supposed new design. The leaker Majin Bu today shared a photo of alleged MagSafe magnet arrays for third-party iPhone 17 Pro cases. On existing iPhone models with MagSafe, the magnets form a...
Wi Fi WiFi General Feature

iOS 26 Adds a Useful New Wi-Fi Feature to Your iPhone

Wednesday July 2, 2025 6:36 am PDT by
iOS 26 and iPadOS 26 add a smaller yet useful Wi-Fi feature to iPhones and iPads. As spotted by Creative Strategies analyst Max Weinbach, sign-in details for captive Wi-Fi networks are now synced across iPhones and iPads running iOS 26 and iPadOS 26. For example, while Weinbach was staying at a Hilton hotel, his iPhone prompted him to fill in Wi-Fi details from his iPad that was already...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Max Battery Capacity Leaked

Thursday July 3, 2025 5:40 am PDT by
The iPhone 17 Pro Max will feature the biggest ever battery in an iPhone, according to the Weibo leaker known as "Instant Digital." In a new post, the leaker listed the battery capacities of the iPhone 11 Pro Max through to the iPhone 16 Pro Max, and added that the iPhone 17 Pro Max will feature a battery capacity of 5,000mAh: iPhone 11 Pro Max: 3,969mAh iPhone 12 Pro Max: 3,687mAh...
iOS 18

Apple Releases Second iOS 18.6 Public Beta

Tuesday July 1, 2025 10:19 am PDT by
Apple today seeded the second betas of upcoming iOS 18.6 and iPadOS 18.6 updates to public beta testers, with the betas coming just a day after Apple provided the betas to developers. Apple has also released a second beta of macOS Sequoia 15.6. Testers who have signed up for beta updates through Apple's beta site can download iOS 18.6 and iPadOS 18.6 from the Settings app on a compatible...
maxresdefault

New MacBook With A18 Pro Chip Spotted in Apple Code

Monday June 30, 2025 8:05 am PDT by
Apple is developing a MacBook with the A18 Pro chip, according to findings in backend code uncovered by MacRumors. Subscribe to the MacRumors YouTube channel for more videos. Earlier today, Apple analyst Ming-Chi Kuo reported that Apple is planning to launch a low-cost MacBook powered by an iPhone chip. The machine is expected to feature a 13-inch display, the A18 Pro chip, and color options...