iPhone 15 Battery Capacities Revealed in Regulatory Database

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

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
top stories 2025 12 04a

Top Stories: iOS 26.2 Coming Soon, Apple Execs Depart, and More

Saturday December 6, 2025 6:00 am PST by
You'd expect things to be starting to wind down for the holidays by now, but that doesn't seem to be the case yet in the world of Apple news, with Apple just about ready to release iOS 26.2 and other operating system updates to the public. There was also a flurry of news this week about Apple executive departures, some expected and some not so expected, while we also learned that Apple and...
Apple Fitness Plus expansion hero

Apple Fitness+ Coming to 28 New Regions With Digital Voice Dubbing

Monday December 8, 2025 6:19 am PST by
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre. Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...

Top Rated Comments

Demovx Avatar
29 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 Avatar
29 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)
jonnysods Avatar
29 months ago
Wow that's a huge increase comperatively.
Score: 12 Votes (Like | Disagree)
soloohara Avatar
29 months ago

excellent: less weight but larger battery.
its 74 mAh, calm down Apple Fanboy!!
Score: 12 Votes (Like | Disagree)
andreagrandi Avatar
29 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...
And it will never go below 81% before your Apple Care+ expires, so you can’t replace it for free ?
Score: 11 Votes (Like | Disagree)
Mark.g4 Avatar
29 months ago
excellent: less weight but larger battery.
Score: 10 Votes (Like | Disagree)