
iPhone 17 Pro Leak Reveals New L-Shaped Battery and Steel Casing Design Enhancements
A new iPhone 17 Pro leak has surfaced, offering a closer look at the upcoming flagship’s internal battery and casing design. Initially thought to belong to the iPhone 17 Air, the L-shaped battery in the images was later confirmed by trusted source Majin Bu to belong to the iPhone 17 Pro. Alongside the updated report, fresh images reveal critical design differences between regional models and potential improvements in performance and repairability.
Distinct L-Shaped Battery and Steel Casing Confirmed
The leaked images show that the iPhone 17 Pro battery adopts an L-shaped layout — a design already familiar to Apple fans from the iPhone 16 Pro. However, Apple is doubling down on efficiency this time with a steel battery casing, reportedly enhancing heat dissipation and possibly extending device longevity during intensive use.
Regional Differences: US vs China Models
Interestingly, the leak reveals physical differences between the iPhone 17 Pro US and China variants:
- US Version:
- Larger battery casing
- No physical SIM slot (eSIM only)
- Extra internal space for thermal improvements
- Chinese Version:
- Includes a physical SIM slot
- Slightly reduced battery casing size
- Space constraints due to added SIM tray
Despite the larger battery casing in the US model, insiders suggest that the battery capacity remains unchanged, with no significant boost in mAh expected.
Improved Battery Adhesive and Logic Board Placement
Apple is also reportedly experimenting with a new adhesive formula around the battery, aimed at making replacements faster and easier — a step toward better sustainability and repairability. Furthermore, the internal layout shows a reduced logic board area near the top, potentially freeing up more space for thermal management or additional components.
Expected Launch in September
As per earlier reports, the entire iPhone 17 series is set to launch in the second week of September 2025. This aligns with Apple’s traditional release window and gives weight to the credibility of the leak.
Final Thoughts
This latest iPhone 17 Pro leak offers an intriguing preview of Apple’s design priorities: better heat control, modularity, and region-specific optimizations. While the battery capacity may remain similar, the focus on build quality and user repairability could be the game-changer Apple fans and critics alike have been waiting for.
For more iPhone 17 updates, stay tuned to our latest tech news and leaks.