Apple iPhone Ultra foldable 4,883mAh dual-cell battery

New details have emerged about the battery powering Apple's first foldable smartphone, expected to be called the iPhone Ultra, as its anticipated September launch draws near. According to regulatory filings reportedly submitted by an Apple battery supplier, the device will feature a dual-cell battery with a combined capacity of 4,883mAh. The leak, shared by a source known as Digital Chat Station on the Chinese social media platform Weibo, specifies individual cell capacities of 1,921mAh and 2,962mAh.

This dual-battery configuration is standard for book-style foldable phones, allowing for optimized weight distribution between the device's two halves. The reported total capacity positions the iPhone Ultra between its main competitors in the current market. It would exceed the 4,400mAh battery in Samsung's Galaxy Z Fold 7 but fall short of the 5,015mAh capacity found in Google's Pixel 10 Pro Fold. The same source indicates the wider supply chain predicts a final capacity ranging between 4,800mAh and 5,000mAh, suggesting the exact figure may not yet be finalized.

The leak also provides context within Apple's own upcoming lineup. The standard iPhone 18 Pro is rumored to have a...