Overview
- Macworld, MacRumors and 9to5Mac reported on Monday that iOS 27 developer beta 4 contains new Battery Health strings that use the plural term “batteries” when describing an iPhone.
- The strings include service and verification text that mentions replacing “the batteries” and warns that one battery might not be verified as genuine, implying software can track cells individually.
- A separate regulatory filing, cited by multiple outlets, lists two battery cells of about 1,921 mAh and 2,962 mAh for a combined capacity near 4,883 mAh, a specification reporters have linked to the rumored foldable iPhone.
- Several outlets and analysts caution that the wording is not definitive proof of a foldable iPhone because it could also refer to external battery accessories or non‑shipping code labels.
- Foldable phones normally split capacity into two cells so each half of a hinged device can hold a battery, and if Apple ships a dual‑cell iPhone it could affect device weight, repair options and how Apple Authorised Service Providers handle replacements.