iOS 27 Code References iPhone With Two Batteries - MacRumors
Skip to Content

iOS 27 Code References iPhone With Two Batteries

by

The fourth developer beta of iOS 27 has references to an iPhone with two batteries, according to Macworld. New Battery Health strings include mentions of multiple internal batteries, instead of a single battery. MacRumors confirmed the mentions are in the beta.

Foldable iPhone 2023 Feature 1

  • "The batteries in this iPhone are performing as expected."
  • "The health of the batteries in this iPhone has significantly degraded. An Apple Authorized Service Provider can replace the batteries to restore full performance and capacity."
  • "The health of the batteries in this iPhone has significantly degraded, and one of the batteries could not be verified as a genuine Apple battery. An Apple Authorized Service Provider can replace the batteries to restore full performance and capacity."

All of the wording in the Settings app on current iPhone models references a single battery, so the plural phrasing is curious.

Macworld speculates the wording references the foldable "iPhone Ultra" Apple is working on. Prior rumors suggest the ‌iPhone Ultra‌ will use two battery cells with 1,921mAh and 2,962mAh capacities for a total of 4,883mAh. Foldable smartphones typically have two batteries, with one located in each half of the device. Apple is likely to use the same design.

The ‌iOS 27‌ strings suggest the batteries in the ‌iPhone Ultra‌ could be serviceable separately, so a single failing cell could be swapped on its own. An option to replace a single degraded cell could lower repair costs.

Apple's ‌iPhone Ultra‌ is expected to debut this September alongside the iPhone 18 Pro models.

Related Roundups: iOS 27, iPadOS 27, iPhone Fold

Popular Stories

Everything New Your iPhone Can Do on iOS 27 Feature 1

20 New Things Your iPhone Can Do in iOS 27

Monday July 20, 2026 7:03 am PDT by
Apple will release iOS 27 in September, and despite the company's focus this year on refining its flagship operating system and nixing bugs, there are still many additional features on the way, not least of which is Apple's new context-aware Siri, re-tooled for the generative AI era. This year's major iPhone software update isn't all about AI, though, as the following feature list...
Read Full Article • 19 comments
iCloud iPhone 17 Pro

iPhone Users Who Pay for iCloud Storage Get Two New Perks on iOS 27

Thursday July 2, 2026 6:10 am PDT by
If you pay for certain iCloud+ storage plans beyond the 5GB that Apple offers for free, you will receive two more perks on iOS 27 at no additional cost. A summary of the two new iCloud+ perks on iOS 27:Increased daily usage limits for some new Apple Intelligence features, including image generation in the revamped Image Playground app. HomeKit Secure Video cameras receive generated video...
Read Full Article • 51 comments
iOS 27 Feature Dark

Apple Seeds iOS 27 and iPadOS 27 Second Betas to Developers

Monday June 22, 2026 10:08 am PDT by
Apple today seeded the second betas of iOS 27 and iPadOS 27 to developers for testing purposes, with the update coming two weeks after Apple released the first betas following the WWDC 2026 keynote. Registered developers can download the betas from the Settings app on the iPhone or iPad by going to the General section and selecting Software Update. iOS 27 introduces Apple's smarter...
Read Full Article • 113 comments

Top Rated Comments

rchaser Avatar
rchaser
16 hours ago at 01:02 pm
Foldable iPhone will be the best selling, most successful product launch of all time. Game changer. $2500 is a steal for what is going to be released.

Take my money!
Score: 8 Votes (Like | Disagree)
PBG4 Dude Avatar
PBG4 Dude
16 hours ago at 12:50 pm
Sometimes I wonder if Apple purposely puts these strings into the beta to drive rumor-mongers nuts.
Score: 7 Votes (Like | Disagree)
johnsawyercjs Avatar
johnsawyercjs
15 hours ago at 01:56 pm

Will it have a visible crease though?
If the batteries have a crease, it won't matter since we won't be able to see them
Score: 4 Votes (Like | Disagree)
jz0309 Avatar
jz0309
16 hours ago at 12:16 pm
oh the mystery, the suspense ... it's killing me :eek: :p
Score: 3 Votes (Like | Disagree)
L
Lounge vibes 05
12 hours ago at 04:19 pm

No, 10 million represents only 2H26 shipments.

10 million units spread across 12 months? That would be less than 1 million units sold per month. That doesn't pass the sanity check. For perspective, Apple sells about 220 million iPhones per year.
You are joking, right?
Yes, Apple sells 220 million iPhones every year. That means iPhones going all the way from the cheapest, to the most expensive.
The most popular model is the base, $800 regular iPhone.
This also includes previous generations as well.

Apple apparently produced about 85 million iPhones for the fourth quarter of 2025. Assuming similar numbers this year, at 10 million units, this would mean that the folding iPhone would represent around 12 to 15% of all iPhone shipments, or in other words, almost three times the share of iPhones that the iPhone Air represented last year.
The iPhone Air was less than $1000, the folding iPhone will be anywhere from $2000 to $3000. It is not going to become 10 to 15% of all iPhone shipments within its first three months. That’s just not going to happen.
You say that 1 to 2 million units per quarter sounds insane, but if you compare it to Samsung’, their flagship $2000 galaxy Z fold sells about 2.5 million units each year, or about 600,000 units per quarter.



The 10 million unit figure is for the entire year, going from the fall of 2026 to the fall of 2027. And despite what you think, this is a massive success for the foldable market, which at the current moment struggles to sell in the hundreds of thousands each quarter.
Score: 1 Votes (Like | Disagree)
S
svish
14 hours ago at 02:19 pm
Dual battery for a foldable is not surprising. However it remains to be seen whether the battery health % reported by the software will be a single figure or not.
Score: 1 Votes (Like | Disagree)
Read All Comments