Apple’s Foldable iPhone: New Battery Details Emerge
Exciting developments are in the air for Apple enthusiasts as recent leaks shed light on the company’s purported venture into the foldable smartphone market. According to a well-known leaker on the Chinese platform Weibo, Apple’s battery supplier has registered two new battery cells, which are speculated to be intended for the rumored foldable iPhone.
Battery Specifications and Industry Comparisons
Digital Chat Station, the leaker, has revealed that the two battery cells have rated capacities of 1,921mAh and 2,962mAh, resulting in a combined minimum rated capacity of 4,883mAh. The supply chain anticipates a total battery capacity between 4,800mAh and 5,000mAh, although this requires further verification.
This dual-cell design aligns with the typical structure of book-style foldable smartphones, where the battery is divided across the device’s two halves. When compared to competitors, the Google Pixel 10 Pro Fold boasts a battery capacity of 5,015mAh, while the Samsung Galaxy Z Fold 7 holds a 4,400mAh capacity. For context, the iPhone 18 Pro and iPhone 18 Pro Max are expected to feature batteries of 4,288mAh and 5,567mAh, respectively.
Conflicting Rumors and Design Revisions
The latest leak contrasts with earlier rumors that claimed Apple was testing significantly larger batteries, ranging from 5,400mAh to 5,800mAh, for its initial foldable iPhone prototype. These earlier reports were believed to be from engineering test configurations. It is plausible that Apple has since adjusted its design, or the initial rumors may have been inaccurate.
Focus on Power Efficiency and Device Specifications
In March 2025, another rumor suggested that Apple is placing a strong emphasis on enhancing power efficiency and minimizing the size of critical components in its foldable iPhone. Battery life is reportedly a top priority for the company. Notable Apple analyst Ming-Chi Kuo has also reported that the device will incorporate high-density battery cells.
The foldable iPhone is rumored to include a 7.8-inch inner display and a 5.5-inch cover display, with Touch ID replacing Face ID. It is expected to house an A20 chip and Apple’s C2 modem in select countries. The device is anticipated to debut alongside the iPhone 18 Pro models in September, potentially branded as the “iPhone Ultra.” Industry analysts, such as IDC, predict the foldable iPhone will have an average selling price of $2,500, with premium storage options reaching up to $3,000.
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