A Weibo leaker claims Apple's upcoming iPhone Fold will feature a 5500+ mAh battery, making it the largest iPhone battery ever by a significant margin. This would give the foldable iPhone a 10% battery capacity advantage over even the iPhone 17 Pro Max.
A new leak from Weibo suggests Apple's upcoming iPhone Fold could feature a groundbreaking 5500+ mAh battery, making it the largest battery ever included in an iPhone by a significant margin. According to leaker Fixed Focus Digital, this would give the foldable device a substantial advantage in battery life compared to current iPhone models.

The battery capacity revelation comes as Apple prepares for what could be one of its most ambitious product launches in years. While the iPhone 18 Pro and Pro Max models are expected to be the most popular new iPhones this fall, the iPhone Fold appears positioned to win the battery life battle decisively.
How the iPhone Fold's Battery Compares
The current iPhone 17 lineup features these battery capacities for eSIM-only models:
- iPhone 17: 3692 mAh
- iPhone 17 Air: 3149 mAh
- iPhone 17 Pro: 4252 mAh
- iPhone 17 Pro Max: 5088 mAh
With the iPhone Fold reportedly packing 5500+ mAh, this represents roughly a 10% increase over even the top-tier iPhone 17 Pro Max. This is particularly noteworthy given that foldable devices typically face greater power demands due to their larger, more complex displays and additional hinge mechanisms.
The Evolution of iPhone Batteries
This leak corroborates earlier reports from last fall suggesting Apple was testing batteries larger than any previous iPhone offered. At that time, rumors indicated a starting range around 5400 mAh, so the current 5500+ mAh figure represents a slight upward revision.
Apple has historically been conservative with battery capacities compared to some Android competitors, often prioritizing device thickness and weight over maximum battery size. The decision to include such a large battery in the iPhone Fold suggests Apple recognizes the unique power challenges posed by foldable technology.
What This Means for Users
The larger battery could be crucial for the iPhone Fold's success. Foldable phones face several battery challenges:
- Larger overall display area when unfolded
- Additional power draw from the folding mechanism
- Potential for more background processes to support multitasking
- Higher brightness requirements for larger screens
A 5500+ mAh battery would help offset these demands, potentially allowing the iPhone Fold to match or exceed the battery life of standard iPhone models despite its more power-hungry design.
The Trade-offs
While a larger battery is generally positive, it's worth considering the potential trade-offs:
- Device weight: Larger batteries add weight, which could impact the Fold's portability
- Charging speed: Bigger batteries typically require longer charging times
- Heat management: More battery capacity can generate more heat during intensive use
Apple will need to balance these factors carefully to maintain the premium feel and user experience that iPhone users expect.
Looking Ahead
The iPhone Fold represents a significant departure from Apple's traditional smartphone design philosophy. By including what appears to be the largest battery in iPhone history, Apple seems committed to ensuring the device can deliver all-day battery life despite its innovative form factor.
As we approach the expected fall launch, more details about the iPhone Fold's specifications, pricing, and features will likely emerge. The battery capacity alone suggests Apple is taking a no-compromises approach to its first foldable device.
Are you planning to buy an iPhone Fold? The combination of cutting-edge foldable technology and industry-leading battery capacity makes it an intriguing option for power users and early adopters alike.

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