Tech Desk 
Jul 06, 2025
Apple is reportedly working on its iPhone 17 series, expected to launch this September. A new leak indicates that the iPhone 17 Pro Max could feature the largest battery ever in an iPhone.
On Weibo, a user named Instant Digital previously shared both accurate and inaccurate information but remains a notable source for Apple leaks.
According to the leak, the iPhone 17 Pro Max battery could reach approximately 5,000mAh, surpassing the 4,676mAh capacity of the current iPhone 16 Pro Max.
iPhone 17 Pro Max features (expected)
Earlier rumours suggested that the new model will be thicker — potentially 8.725mm compared to the iPhone 16 Pro Max’s 8.25mm — with expectations that the added space could support a larger battery.
9to5Mac noted that “if the final capacity is close to 5,000mAh, it could represent nearly a 10% increase, though the outlet cautions that battery capacity doesn't directly translate to battery life improvements.”
To note, the battery life has steadily improved in recent models, citing Apple’s official figures: the iPhone 16 Pro Max lasts 33 hours, up from 29 on the iPhone 14 Pro Max.
With the projected increase, the iPhone 17 Pro Max could offer up to 35 hours of battery life, or possibly more.
According to rumours, battery life also depends on the device's overall design. While new features like vapour chamber cooling may not directly affect battery consumption, others might, offsetting any gains from increased capacity.
Despite evolving features, extended battery life remains one of users' top demands, and the iPhone 17 Pro Max might finally deliver on that front.
