Apple’s highly anticipated iPhone Ultra — the company’s first foldable smartphone — is generating significant buzz as its expected September launch approaches. A fresh leak shared today provides new details on the device’s battery specifications, offering a clearer picture of how Apple plans to power its ambitious foldable design. According to a Weibo post from well-known leaker Digital Chat Station, Apple’s battery supplier has submitted regulatory filings for two battery cells rated at 1,921mAh and 2,962mAh. Combined, these cells deliver a total capacity of 4,883mAh. This dual-cell configuration aligns with common designs in existing foldable phones, where separate batteries are typically placed in the two halves of the device to optimize weight distribution and space. For context, this capacity positions the iPhone Ultra competitively against current foldables: • Samsung Galaxy Z Fold7: 4,400mAh total • Google Pixel 10 Pro Fold: 5,015mAh • Previous-generation Pixel 9 Pro Fold: 4,650mAh While the iPhone Ultra’s total capacity falls between the Galaxy Z Fold7 and the latest Pixel Fold, real-world battery life will depend on numerous factors beyond raw mAh ratings. These include the efficiency of Apple’s custom silicon, the power demands of the foldable display (both when folded and unfolded), software optimizations in iOS, and overall device thickness and weight. How It Compares to the Rest of the iPhone 18 Lineup The same leak ecosystem has also revealed projected battery sizes for the standard iPhone 18 models, giving a broader view of Apple’s 2026 iPhone strategy: • iPhone 18 Pro: ~4,288mAh (eSIM) or 4,056mAh (physical SIM) — modest gains over the iPhone 17 Pro • iPhone 18 Pro Max: ~5,567mAh (eSIM) or 5,391mAh (physical SIM) — significantly larger than previous Pro Max models • iPhone Ultra: 4,883mAh The iPhone Ultra’s battery is notably smaller than the Pro Max’s, which makes sense given the engineering constraints of a foldable chassis. Apple is expected to prioritize thinness, durability of the hinge, and balanced weight over maximizing capacity. Battery capacity represents just one piece of the puzzle. The iPhone Ultra’s unique form factor — featuring a large unfolded display — could introduce new power-management challenges and opportunities. Apple has a strong track record of delivering excellent battery life through tight hardware-software integration, so the final endurance figures may outperform what the raw numbers suggest. MacDailyNews Take: The iPhone Ultra is rumored to launch alongside the iPhone 18 series in September 2026. While leaks continue to provide tantalizing details, official confirmation of specs, pricing, and real-world performance will only come from Apple itself at the launch event. Until then, the iPhone Ultra remains one of the most exciting product developments in Apple’s recent history! Support MacDailyNews at no extra cost to you by using this link to shop at Amazon. The post Apple iPhone Ultra foldable to feature 4,883mAh dual-cell battery, new leak claims appeared first on MacDailyNews. You're currently a free subscriber to MacDailyNews. For the full experience, upgrade your subscription.
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