Hands-On With Apple's New Smart Battery Case for iPhone 11 Pro Max

Apple on Wednesday unveiled new Smart Battery Cases designed for the iPhone 11, ‌iPhone‌ 11 Pro, and iPhone 11 Pro Max, offering up extra battery life for its newest flagship smartphones.

The first Smart Battery Case orders are arriving to customers today and the cases are in stores, so we picked one up to give MacRumors readers a heads up on the features and the differences compared to last year's Smart Battery Cases.


Design wise, the Smart Battery Cases for the ‌iPhone‌ 11 and 11 Pro models look identical to the prior-generation battery cases, with the exception of the square-shaped camera cutout to accommodate the dual and triple-lens camera systems in the new iPhones.

This year's case has the same bump at the back, which houses the battery that charges the ‌iPhone‌, and it's about the same thickness as last year's model.

smarbatterycaseback
There are volume up buttons at the side, a power button, and, on the right side, a brand new button that's designed to be a camera control. You can press the button to automatically launch the camera app, regardless of whether the ‌iPhone‌ is locked or unlocked.

smartbatterycasebutton
Pressing the button the first time opens up the camera app, but when the app is opened, pressing again takes a photo. Pressing and holding captures a QuickTake video, and the single press also works with the selfie camera.

smartbatterycasebutton2
Apple is offering the ‌iPhone‌ 11 Pro and Pro Max Smart Battery Cases in black, white, and pink sand, while the ‌iPhone‌ 11 ‌Smart Battery Case‌ is limited to black and white. The black shade of the new cases has shifted. Last year, Apple used a black case with a charcoal logo, but this year, the entire case is the lighter charcoal color with a deeper black logo.

There are two 1,430mAh battery cells inside of the ‌iPhone 11 Pro Max‌ version of the ‌Smart Battery Case‌, up from the 1,369mAh battery cells used last year in the ‌iPhone‌ XS Max ‌Smart Battery Case‌. The two battery cells are wired together into one battery, allowing the cases to offer 10.9Wh of energy (vs. 10.1Wh in the prior XS Max model).

smartbatterycasefit
Apple says that all of the new battery cases will add up to 50 percent more battery life to the iPhones, which translates to 9 hours of additional video playback for the 11 Pro, 10 hours of additional video playback for the 11 PRo Max, and 8.5 hours of additional video playback for the ‌iPhone‌ 11.

With the ‌Smart Battery Case‌ attached to an ‌iPhone‌, the ‌iPhone‌ will drain the case first before using the built-in battery, and this is automatic and can't be shut off. Battery life of the case can be viewed on the Lock screen when placed on a charger or in the Today view of the Notification Center.

smartbatterycasecharging
Charging the case can be done using a Lightning cable or a Qi-based wireless charger. The ‌iPhone‌ will always charge before the case when charging the two together. For those with Lightning-based headphones and accessories, the Lightning port on the ‌Smart Battery Case‌ does have passthrough capabilities.

smartbatterycaseremoval
The Smart Battery Cases can be purchased from the Apple online store or from Apple retail stores, and all three new cases cost $129.

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 ...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
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....
iOS 26

Apple Seeds iOS 26.2 and iPadOS 26.2 Release Candidates to Developers and Public Beta Testers

Wednesday December 3, 2025 10:33 am PST by
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
Photos App Icon Liquid Glass

John Gruber Shares Scathing Commentary About Apple's Departing Software Design Chief

Thursday December 4, 2025 9:30 am PST by
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999. Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs. On his blog Daring Fireball,...
iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
ive and altman

Jony Ive's OpenAI Device Barred From Using 'io' Name

Friday December 5, 2025 6:22 am PST by
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports. iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...
iphone air camera

iPhone Air's Resale Value Has Dropped Dramatically, Data Shows

Thursday December 4, 2025 5:27 am PST by
The iPhone Air has recorded the steepest early resale value drop of any iPhone model in years, with new data showing that several configurations have lost almost 50% of their value within ten weeks of launch. According to a ten-week analysis published by SellCell, Apple's latest lineup is showing a pronounced split in resale performance between the iPhone 17 models and the iPhone Air....
iPhone 17 Pro Cosmic Orange

iPhone 17 Pro Lost a Camera Feature Pro Models Have Had Since 2020

Thursday December 4, 2025 5:18 am PST by
iPhone 17 Pro models, it turns out, can't take photos in Night mode when Portrait mode is selected in the Camera app – a capability that's been available on Apple's Pro devices since the iPhone 12 Pro in 2020. If you're an iPhone 17 Pro or iPhone 17 Pro Max owner, try it for yourself: Open the Camera app with Photo selected in the carousel, then cover the rear lenses with your hand to...

Top Rated Comments

kpeex Avatar
79 months ago
Next feature will be straps to carry it like a backpack.
Score: 22 Votes (Like | Disagree)
cmaier Avatar
79 months ago

So thicc!
Yes. It’s a battery.
Score: 16 Votes (Like | Disagree)
velcrovan Avatar
79 months ago
An underappreciated benefit of a battery case is that it reduces wear on the lightning port and the original battery, increasing the useable life of your phone.
Score: 16 Votes (Like | Disagree)
ruslan120 Avatar
79 months ago

Dan is somehow annoying. Not sure what it is.

These cases seem largely unnecessary with the insane battery life in iPhone 11.
For day-to-day usage for most people, I would agree.
For trips abroad (for me personally) or for long flights (for many people) or for any profession that requires extended travel, this would be terrific.
Score: 14 Votes (Like | Disagree)
Baymowe335 Avatar
79 months ago
Dan is somehow annoying. Not sure what it is.

These cases seem largely unnecessary with the insane battery life in iPhone 11.
Score: 13 Votes (Like | Disagree)
Aston441 Avatar
79 months ago
Jony's legacy. He will be most remembered for this.
Score: 13 Votes (Like | Disagree)