iOS 27 Code References iPhone With Two Batteries

Monday July 20, 2026 12:10 pm PDT by Juli Clover

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.

• "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.

Popular Stories

20 New Things Your iPhone Can Do in iOS 27

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...

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

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...

Apple Seeds iOS 27 and iPadOS 27 Second Betas to Developers

Monday June 22, 2026 10:08 am PDT by Juli Clover

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...