The iPhone 17 Pro Max is generating buzz, with a new leak suggesting a significant battery upgrade compared to previous models. If the rumors are true, this could be a game-changer for iPhone users prioritizing battery life.

Anticipated to launch in September, the iPhone 17 Pro Max is the subject of ongoing speculation. A rumor circulating on Weibo indicates that Apple’s next top-tier phone will feature a battery nearing 5 000 mAh, a first for the brand. This increase in battery size is expected to coincide with a slightly thicker design,a detail previously mentioned in other leaks.

A Battery of Around 5,000 mAh for the iPhone 17 Pro Max?

According to the leaker Instant Digital, who frequently shares accurate data about Apple’s plans on the Chinese social network Weibo, the iPhone 17 Pro Max will have a battery capacity of approximately 5,000 mAh. While this figure is highly likely rounded, it suggests a considerable betterment over previous generations.

For context,the iPhone 16 Pro Max features a 4,676 mAh battery,while the iPhone 15 Pro Max has a 4,422 mAh battery,and the iPhone 14 Pro Max has a 4,323 mAh battery. Over the course of three years, Apple could potentially increase the battery capacity of its Pro Max model by over 15 %.

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This increase in battery size is reportedly made possible by a slightly thicker chassis, accommodating the larger battery. This decision would deviate from the trend of increasingly slim phones (like the Galaxy S25 Edge),but it could appeal to users who prioritize longer battery life.

The iPhone 17 Pro Max could strengthen its position as champion of autonomy at Apple.

A Larger Battery Does Not Always Mean Better Autonomy

While a larger battery is a positive sign, it doesn’t automatically guarantee improved battery life. The phone’s endurance will also depend on software optimizations in iOS 26, as well as the efficiency of internal components, especially the new Apple chip.

Find out: smartphones with the best autonomy in July 2025

Nevertheless, with a battery capacity of this size, the iPhone 17 Pro Max is likely to solidify its position as the leader in battery performance among Apple devices. Those seeking a smartphone that can last more than a day with heavy use will likely find this to be an appealing option.

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Source :

9to5Mac