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iPhone 17 Pro to See Massive Jump in Battery Life with 18.7% Increase in Capacity
ByAinvest
Monday, Sep 8, 2025 4:56 am ET2min read
The iPhone 17 Pro will have an 18.7% increase in battery capacity, with a 4252 mAH battery compared to the 3582 mAH in the iPhone 16 Pro. This is expected to result in an additional 3 hours of quoted battery life, surpassing the iPhone 16 Pro Max's battery life. The iPhone 17 Pro Max will have a 5088 mAH battery, a 8.6% increase from the 4685 mAH in the iPhone 16 Pro Max.
Apple is set to unveil its iPhone 17 series on September 9, 2025, and preliminary reports suggest significant improvements in battery capacity and efficiency. Based on leaked information from Chinese regulatory databases and tech whispers, here’s a breakdown of the expected battery capacities and their implications for the new iPhone models.iPhone 17 Pro
The iPhone 17 Pro is expected to feature an 18.7% increase in battery capacity, with a 4252 mAh battery compared to the 3582 mAh in the iPhone 16 Pro. This substantial increase is likely to result in an additional 3 hours of quoted battery life, surpassing the iPhone 16 Pro Max's battery life. The improved battery capacity is attributed to Apple's focus on power efficiency and the use of more advanced components.
iPhone 17 Pro Max
The iPhone 17 Pro Max will feature a 5088 mAh battery, an 8.6% increase from the 4685 mAh in the iPhone 16 Pro Max. This upgrade is expected to bring the device closer to the top-tier battery life of high-end Android phones. Apple's efficiency in power management and the use of advanced chipsets are likely to ensure that the iPhone 17 Pro Max maintains its lead in battery longevity.
iPhone 17 Air
The iPhone 17 Air, a slim form factor smartphone, is expected to have a 3036 mAh battery and 3149 mAh battery capacity, depending on the model. This is a 17% reduction from the base model iPhone 17, indicating a trade-off between battery capacity and the device's thin design. However, Apple's power-efficient C1 modem for cellular connectivity and the planned release of an iPhone 17 Air battery case may help mitigate any potential battery life concerns.
eSIM vs. Physical SIM Card Slot
It is worth noting that eSIM-equipped iPhone 17 models are expected to have a slight edge in battery life compared to those with a physical SIM card slot. Apple is planning to launch eSIM-only iPhone 17s in the US, Europe, and other markets, while continuing to sell iPhone models featuring physical SIM trays in some regions, including China, to comply with local laws.
Power Efficiency and Chipsets
The new iPhone 17 series will likely feature the A19 and A19 Pro chipsets, fabricated on TSMC’s latest N3P 3-nanometer process. This process is expected to be more efficient than the N3E process used in the iPhone 16 series, further enhancing the overall power efficiency of the devices.
Conclusion
The iPhone 17 series is poised to offer significant improvements in battery capacity and efficiency, with the iPhone 17 Pro and iPhone 17 Pro Max models leading the way. These upgrades are expected to provide users with longer battery life and improved power management, making the new iPhone models more appealing to consumers and investors alike.
References
[1] https://www.macrumors.com/2025/09/08/iphone-17-battery-capacities-allegedly-leaked/
[2] https://www.thetechoutlook.com/tech-whispers/apple-iphone-17-series-actual-battery-capacities-revealed-via-chinese-regulatory-platform/
[3] https://9to5mac.com/2025/09/08/iphone-17-pro-battery-life-massive-increase/
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