iPhone 15 Battery Capacities Revealed in Regulatory Database

Friday September 15, 2023 4:31 am PDT by Tim Hardwick

Apple does not advertise battery capacities for its new iPhone 15 lineup, but MySmartPrice has obtained this information from a Chinese regulatory database.

iphone 15 lineup store
The Chinese regulatory listing reveals that the iPhone 15 has a 3,349mAh battery (rated capacity) and a wattage of 12.981Wh, while the iPhone 15 Pro has a 3,274mAh battery and a wattage of 12.70Wh.

Battery capacities for the full iPhone 15 lineup:

iPhone 15: 3,349mAh
iPhone 15 Plus: 4,383mAh
iPhone 15 Pro: 3,274mAh
iPhone 15 Pro Max: 4,422mAh

Battery capacities for the 2022 iPhone 14 lineup:

iPhone 14: 3,279 mAh
iPhone 14 Plus: 4,325 mAh
iPhone 14 Pro: 3,200 mAh
iPhone 14 Pro Max: 4,323 mAh

The same database accurately revealed battery capacities for all four iPhone 14 models ahead of those devices launching last year.

Despite the incremental increases shown above, Apple did not highlight any battery life improvements for its new iPhone 15 models compared to their direct predecessors, presumably because any difference is negligible in real-world usage. This comes contrary to a multitude of rumors prior to Apple's event, which suggested that the major efficiency improvements of the A17 Pro chip would bring battery life improvements.

According to Apple, the approximate battery life of each of iPhone 15 model is as follows:

iPhone 15: 20 hours
iPhone 15 Plus: 26 hours
iPhone 15 Pro: 23 hours
iPhone 15 Pro Max: 29 hours

This is exactly the same as the iPhone 14, iPhone 14 Plus, iPhone 14 Pro Max, and iPhone 14 Pro Max. Of course, it's possible that efficiency improvements may still result in slightly better real-world performance in Apple's latest models, but we won't know until third-party tests are available.

All four iPhone 15 models were announced by Apple earlier this week and will be available to pre-order on Friday. The devices are set to launch on September 22.

Related Forum: iPhone

Popular Stories

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by Joe Rossignol

Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...

• 90 comments

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by Juli Clover

Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...

• 30 comments

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by Juli Clover

Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...

• 76 comments

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by Hartley Charlton

The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....

• 152 comments

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by Juli Clover

Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...

• 33 comments

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by Juli Clover

Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...

• 111 comments

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by Joe Rossignol

Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...

• 82 comments

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by Joe Rossignol

Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...

• 34 comments

Top Rated Comments

Demovx

30 months ago

I hope there were new batteries, not the same ones they used in 14 Pro, which lost 10% of its health after a year...

Score: 28 Votes (Like | Disagree)

Red Oak

30 months ago

What happened to the massive benefits the move to 3 nm was suppose to give? No battery life changes, +10% CPU, +20% GPU. I was expecting a bigger impact

Makes me wonder about the M3

Score: 14 Votes (Like | Disagree)