iPhone 12 Pro Max Has Smaller 3,687 mAh Battery According to Regulatory Filing

Apple's new iPhone 12 Pro Max is equipped with a 3,687 mAh battery, which is around 7% less capacity than the 3,969 mAh battery in the iPhone 11 Pro Max, according to a regulatory filing published by TENAA, the Chinese equivalent of the FCC.

Apple iphone12pro pacific blue 10132020 Full Bleed
The regulatory filing, spotted by MacRumors, also lists the iPhone 12 Pro Max with 6GB of RAM as seen in benchmark results last week.

Apple has filed many products with TENAA over the years, and the listings have proven to be accurate on multiple occasions. Last year, for example, accurate battery capacities and RAM in the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max appeared in the database a few days prior to those devices launching. A rumor also suggested that the iPhone 12 Pro Max would have a 3,687 mAh battery earlier this year.

Despite having a smaller battery, Apple's tech specs indicate that the iPhone 12 Pro Max has the same battery life as the iPhone 11 Pro Max, with both devices providing up to 20 hours of video playback and up to 80 hours of audio playback.

Apple never discloses battery capacities or RAM on its iPhone tech spec pages, but teardowns of the new devices should confirm these details in the coming days.

Related Forum: iPhone

Popular Stories

iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
maxresdefault

Apple TV 4K Could Still Launch Before 2025 Ends: All the Rumored Features

Monday October 27, 2025 4:51 pm PDT by
Apple is designing an updated version of the Apple TV 4K, and rumors suggest that it could come out sometime in the next couple of months. We're not expecting a major overhaul with design changes, but even a simple chip upgrade will bring major improvements to Apple's set-top box. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up all the latest Apple TV rumors. ...
M6 MacBook Pro Feature 1

M6 MacBook Pro: Release Date, Pricing, and What to Expect

Monday October 27, 2025 9:15 am PDT by
Apple this month refreshed the 14-inch MacBook Pro base model with its new M5 chip, and higher-end 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips are expected to follow in early 2026. However, these machines will represent the final update to the current design, with Apple reportedly developing a completely new version of the MacBook Pro packed with next-generation hardware...
iOS 26

Apple Seeds iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1 Release Candidates

Tuesday October 28, 2025 1:07 pm PDT by
Apple today provided developers and public beta testers with the release candidate versions of upcoming iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, watchOS 26.1, and visionOS 26.1 updates for testing purposes. The RCs betas come a week after Apple released the fourth betas. The new betas can be downloaded from the Settings app on a compatible device by going to General > Software...
iOS 26 Battery Glass Feature

iOS 26.1 Beta Liquid Glass Battery Drain Test: Tinted vs Clear Mode

Friday October 24, 2025 2:30 pm PDT by
In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more opaque look. I saw some comments wondering whether the setting might preserve battery life, so I thought I'd do some testing. Test Settings I did four separate tests using the iPhone 17 Pro Max, and I kept the parameters as similar as possible. Here are the...
ios 26 digital id passport wallet

Apple Says U.S. Passport Feature on iPhone is Coming Soon

Monday October 27, 2025 7:41 am PDT by
You will "soon" be able to add a digital version of your U.S. passport to your iPhone, according to Jennifer Bailey, vice president of Apple Pay and Apple Wallet. Bailey reiterated that the feature is coming soon during her keynote at the Money20/20 USA conference in Las Vegas on Sunday. On its iOS 26 page, Apple says the delayed feature will be "coming later this year." Apple's...
macos tahoe

Here Are Apple's Release Notes for macOS Tahoe 26.1

Tuesday October 28, 2025 1:21 pm PDT by
Apple today provided developers and public beta testers with the release candidate version of macOS Tahoe 26.1, which means the update will likely see a public launch next week. The release candidate includes notes on what's in the update, so we have a full picture of the new features that Apple has included. macOS Tahoe 26.1 adds AutoMix support over AirPlay, improved FaceTime audio...
iPhone Car Key Kia

Another Vehicle Brand Gaining iPhone Car Keys Support

Tuesday October 28, 2025 5:27 am PDT by
Apple is preparing to bring support for its digital car key feature to Jetour vehicles, according to evidence uncovered on Apple's backend by MacRumors contributor Aaron Perris. Introduced in 2022, Car Keys allows an iPhone or Apple Watch to unlock a vehicle through the Wallet app. A digital version of a car key is stored in Wallet, and unlocking can be done by holding an Apple Watch or...

Top Rated Comments

yurc Avatar
66 months ago
I dunno why is hard for Apple, they successfully creating high efficiency chips but very hard to increasing battery capacity. Instead when Apple introduced more efficient AX chips, they also reducing mAH as possible.

Do the both should be win win for customer, especially with 5G tech which consumes more juices.
Score: 27 Votes (Like | Disagree)
myrtlebee Avatar
66 months ago
Does anybody really prefer a thinner phone over more battery?
Score: 26 Votes (Like | Disagree)
BenLeong Avatar
66 months ago
Bigger body than the 11 Pro Max, but 7% smaller battery? Aw.
Score: 23 Votes (Like | Disagree)
Mr. Dee Avatar
66 months ago
I’m telling you, it’s only a matter of time before Apple puts nothing in the box.
Score: 14 Votes (Like | Disagree)
JPack Avatar
66 months ago


Apple never discloses battery capacities or RAM in iPhones, but teardowns of the new devices should confirm these details in the coming days.
This is incorrect. Apple discloses battery capacities for all their products. They are legally obligated to do so.

The info is listed on the bottom of this page:

https://www.apple.com/legal/more-resources/gtc.html
Score: 13 Votes (Like | Disagree)
Renho Avatar
66 months ago
Just BS. Flagship going down in battery capacity as the form factor gets bigger and 5G gets added..??‍♂️ Damn them for this
Score: 11 Votes (Like | Disagree)