iPhone Ultra Battery Details Allegedly Revealed in New Leak

Photo Credit: Apple Inc.

As the anticipated announcement of Apple’s iPhone Ultra approaches this September, fresh battery-related details have emerged regarding the device's hardware. Recent reports suggest that Apple could adopt a dual-cell battery architecture for its foldable flagship, aligning it with industry standards seen in similar devices from competitors like Samsung and Google.

Battery Architecture and Capacity

According to a leaker known as Digital Chat Station on Weibo, Apple’s battery suppliers recently submitted regulatory filings for two battery components with capacities of 1,921mAh and 2,962mAh. This configuration results in a total battery capacity of approximately 4,883mAh.

Dual-cell battery designs are commonly used in foldable smartphones to accommodate the physical layout of the device while enabling balanced power management. For comparison, the Samsung Galaxy Z Fold7 features a total battery capacity of 4,400mAh, while the Google Pixel 10 Pro Fold utilizes a 5,015mAh battery. The previous-generation Pixel 9 Pro Fold was equipped with a 4,650mAh capacity.

Comparative Battery Estimates for the iPhone 18 Series

The leaked details for the iPhone Ultra provide context for the expected battery configurations across Apple's upcoming smartphone lineup:

• iPhone 18 Pro: Estimated at 4,288mAh (eSIM model) or 4,056mAh (physical SIM model), representing an increase of up to 68mAh over the iPhone 17 Pro.

• iPhone 18 Pro Max: Estimated at 5,567mAh (eSIM model) or 5,391mAh (physical SIM model), reflecting a significant increase of up to 568mAh over the iPhone 17 Pro Max.

• iPhone Ultra: Estimated at a total capacity of 4,883mAh.

While these capacity figures provide insight into the hardware specifications, industry analysts note that actual battery life depends on various optimization factors, particularly for a device with a foldable form factor. If announced as expected, Apple is anticipated to provide full details on the device's power efficiency and real-world battery performance during its September launch event.

Source: 9to5Mac - "iPhone Ultra battery details allegedly revealed in new leak" by Chance Miller (July 10, 2026)

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