iPhone 17 Pro Max Battery Upgrade Rumors Hint at Longer Power and Slightly Thicker Design

Apple may have just unveiled its iPhone 16 lineup, but the tech world’s attention has already shifted to the next big thing — the iPhone 17 Pro Max. Fresh leaks from reliable Chinese tech tipster Ice Universe suggest that Apple is preparing notable changes in the Pro Max model’s battery and design, aimed at delivering better endurance for users.

Will the iPhone 17 Pro Max Have a Bigger Battery?

According to the leaked details, the iPhone 17 Pro Max could be slightly thicker than its predecessor, the iPhone 16 Pro Max, to accommodate a larger battery. The 16 Pro Max is 8.25mm thick, but the upcoming 17 Pro Max may measure 8.725mm.
This small yet significant increase in thickness is believed to be part of Apple’s strategy to boost battery capacity, potentially extending daily usage time without sacrificing performance.

For reference, the iPhone 16 Pro Max carries a 4,685mAh battery, already a 240mAh increase over the iPhone 15 Pro Max. If Apple follows this upward trend, the 17 Pro Max could deliver even better longevity — though the company has yet to officially confirm any specifications.

The iPhone 17 Pro Max is expected to maintain the same overall size as the 16 Pro Max, with minimal external changes. Leaks indicate that the camera position and bump will remain identical, preserving the familiar look for existing users.
However, Apple may shift from its current titanium frame to aluminum, combining an aluminum and glass rear panel for a fresh but understated design evolution.

Apple’s switch to aluminum could be due to several factors, including weight balance, cost optimization, and improved thermal performance. Aluminum frames are typically lighter than titanium, and when paired with glass, can create a premium feel while still being more cost-efficient for mass production.

Other Models in the iPhone 17 Lineup

Alongside the Pro Max, rumors also hint at a new variant — the iPhone 17 Air. While official details are nonexistent, Ice Universe claims the Air model may share the same dimensions as the Pro Max, potentially offering similar display size and ergonomics but with different internal configurations.

Why These Changes Matter for Users

A larger battery and a slightly thicker chassis could translate into longer screen-on time, improved gaming sessions, and better 5G endurance. For power users and travelers, this upgrade could be a game-changer, reducing the need for frequent charging throughout the day.
Additionally, a sturdier aluminum frame might make the device more resistant to bending and everyday wear while keeping it lighter in hand.

Since Apple traditionally reveals its new iPhones in September, official confirmation on the iPhone 17 Pro Max battery size and other specifications may not arrive until late 2025. Until then, all leaked details should be taken with caution — but if the rumors hold true, the 17 Pro Max could mark one of the most meaningful battery upgrades in years.

The iPhone 17 Pro Max is shaping up to be a performance and endurance powerhouse, blending subtle design adjustments with practical improvements to meet user needs.

You Must Know

Q1: How much thicker will the iPhone 17 Pro Max be compared to the iPhone 16 Pro Max?
It is rumored to be about 0.475mm thicker, increasing from 8.25mm to 8.725mm, likely to fit a larger battery.

Q2: What is the expected battery capacity of the iPhone 17 Pro Max?
While no official figures are confirmed, leaks suggest it will be larger than the 4,685mAh battery in the iPhone 16 Pro Max, offering better usage time.

Q3: Will the iPhone 17 Pro Max change its design significantly?
No major changes are expected; it will keep a similar camera layout and dimensions but may feature an aluminum and glass back instead of titanium.

Q4: Why would Apple use aluminum instead of titanium for the iPhone 17 Pro Max?
Aluminum is lighter, more cost-efficient, and can improve heat dissipation, making it a practical choice for high-performance devices.

Q5: When will the iPhone 17 Pro Max be released?
Apple is expected to unveil it in September 2025, following the company’s traditional launch schedule.