iPhone 17 Pro Max (Ultra?) Rumored to Get 5000mAh Battery—Biggest Ever in an iPhone

iPhone 17 Pro Max (Ultra?) Rumored to Get 5000mAh Battery—Biggest Ever in an iPhone

Apple may be preparing its biggest iPhone battery upgrade yet, with leaker Instant Digital claiming the iPhone 17 Pro Max could pack a massive 5000mAh battery—a first for the iPhone lineup. If true, this would eclipse the 4,676mAh battery found in the current iPhone 16 Pro Max and reflect a major leap in power capacity.

Why 5000mAh Matters

A 5000mAh battery would bring Apple’s Pro Max model closer to flagship Android phones, many of which already boast similar or larger batteries. This move could deliver:

  • Longer screen-on time for content creation, gaming, or video playback

  • Better support for high-performance chips like the rumored A19 Pro

  • More headroom for AI processing, camera tasks, and vapor chamber cooling systems

Thicker Design, Bigger Power

To accommodate the larger battery, Apple is reportedly making the iPhone 17 Pro Max thicker—up to 8.75mm, based on recent dummy unit leaks. For comparison:

  • iPhone 15 Pro Max: 8.25mm

  • iPhone 16 Pro Max: ~8.26mm

  • iPhone 17 Pro Max (rumored): 8.75mm

While still slim by flagship standards, this slight increase may allow for a larger battery, improved cooling, and less thermal throttling under intense workloads.

Other iPhone 17 Pro Max (Ultra?) Rumors

  • A19 Pro chip: Built for high performance and Apple Intelligence tasks

  • Triple 48MP camera system: Upgraded sensors across all lenses

  • Smaller Dynamic Island: Further reducing on-screen visual interruptions

  • Vapor chamber cooling: To sustain performance under extended loads

  • Possible rebrand to “iPhone 17 Ultra” to better reflect its top-tier status

When to Expect It

Apple is expected to unveil the iPhone 17 lineup in fall 2025, aligning with its usual September launch cycle. If development stays on schedule, the 17 Pro Max / Ultra could become Apple’s most powerful—and longest-lasting—iPhone ever.

Bottom Line

A jump to a 5000mAh battery in the iPhone 17 Pro Max wouldn’t just be about matching Android rivals—it would be about powering a next-gen iPhone experience filled with AI, advanced cameras, and high-performance silicon. Combined with a slightly thicker body, smarter thermal management, and design refinements, this could be the most complete Pro Max package yet.

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