Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max may finally address one of the most persistent criticisms of the company's flagship lineup, with a growing body of leaks pointing to significantly larger batteries, a more efficient processor and a redesigned, slightly thicker chassis ahead of the devices' expected launch in September.

According to a tipster on the Chinese social media platform Weibo, both upcoming Pro models could be marginally thicker than their predecessors, a design change believed to be aimed at creating additional internal space for larger battery cells as increasingly power-hungry on-device artificial intelligence features become more common across the iPhone lineup. Separate reporting citing regulatory documents filed in China points in a similar direction, suggesting both Pro models may ship with larger batteries across different regional variants, even though Apple has not officially confirmed any specifications.

Battery capacity estimates for the devices have varied somewhat across different leaks, though most point toward a meaningful increase over the current iPhone 17 Pro lineup. Some reports suggest the iPhone 18 Pro Max could carry a battery exceeding 5,500 mAh in its U.S. eSIM-only configuration, while other leaks have placed the figure closer to a 5,200 to 5,425 mAh range depending on whether the device includes a physical nano-SIM tray. By comparison, the iPhone 17 Pro Max is reported to carry roughly 4,823 mAh in its nano-SIM version and about 5,088 mAh in its........

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