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iPhone 17 Pro Max Leak Points to Record 5,000mAh Battery

That boost could power Apple’s A19 Pro silicon through nearly 35 hours of runtime with iOS 26 efficiencies.

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Overview

  • A Weibo leak from Instant Digital suggests the iPhone 17 Pro Max will house about a 5,000 mAh cell, the largest ever in an iPhone.
  • That jump from the iPhone 16 Pro Max’s 4,676 mAh represents a roughly 7–10 percent capacity increase over its predecessor.
  • Industry schematics indicate Apple will thicken and slightly weighten the chassis to fit the larger battery pack.
  • Synergy between the new A19 Pro silicon and iOS 26 power-management features is expected to unlock up to 35 hours of runtime.
  • The leak underscores Apple’s steady, year-over-year strategy of boosting Pro Max battery life since the 2019 iPhone 11 Pro Max.