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The iPhone 17 Air could get a high-density battery

Milan Jovicic by Milan Jovicic
March 6, 2025 - 10:46 PM CET
in Apple Rumors
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iPhone 17 Air Apple

Image: Front Page Tech

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Apple is expected to unveil the iPhone 17 Air in September. Rumors suggest that the new model will be particularly thin and will use innovative battery technology. Analyst Ming-Chi Kuo revealed some interesting details in a blog post about Apple's future developments. According to the report, the iPhone 17 Air will be equipped with a so-called high-density battery, which should ensure good battery life despite the thin casing. Apple could also get even more out of the device through further optimizations.

Smartphones are becoming more and more powerful, but at the same time they are supposed to be lighter and thinner. Apple has made great progress in recent years, but battery life often remains a challenge. This is supposed to be different with the iPhone 17 Air. Despite an extremely slim design with a thickness of just 5.5 millimeters at the thinnest point, the device's battery is supposed to be powerful. This is made possible by a new battery technology and a number of other technical adjustments.

High-density battery cells for longer running time

According to Ming-Chi Kuo, the iPhone 17 Air will use a high-density battery. This Technology enables more energy to be stored in a smaller cell. Apple is using this development to keep the device particularly thin without sacrificing sufficient battery life. There are no exact details on the capacity yet, but the new battery could ensure that the iPhone 17 Air lasts longer than many expect. Concerns that the slim design automatically leads to a shorter battery life could therefore prove to be unfounded. The new technology could even ensure that the iPhone 17 Air performs better in terms of runtime than previous models with conventional battery cells.

Apple's C1 modem aims to reduce energy consumption

In addition to the new battery, another hardware element should help improve battery life. Apple is apparently planning to equip the iPhone 17 Air with a power-saving C1 modem. This modem is designed to reduce energy consumption when using cellular networks. This can be a decisive factor, especially for 5G connections, as current 5G modems often consume a lot of energy. A more efficient modem means that less battery is needed for network operation. In combination with the high-density battery cells, the iPhone 17 Air could therefore offer a better runtime than its low height suggests.

More space for the battery by omitting the ultra-wide-angle camera

Another detail that could speak for a longer battery life is the decision to do without the ultra-wide-angle camera on the iPhone 17 Air. iPhones usually have a main camera, an ultra-wide-angle camera and, in the Pro models, an additional telephoto camera. By eliminating the ultra-wide-angle camera, more space is created inside the case. Apple could use this extra space to install a larger battery. Even though the device is very thin overall, this measure may provide a better balance between design and battery performance.

The thinnest iPhone ever

Probably the most striking feature of the iPhone 17 Air will be its height. According to Ming-Chi Kuo, the smartphone will measure just 5.5 millimeters at its thinnest point. This would make it the slimmest iPhone to date and one of the thinnest smartphones ever. With this design, Apple is focusing on elegance and low weight. At the same time, it is a technical challenge to accommodate all the components in such a compact housing. The high-density battery, the efficient modem and the optimized camera arrangement show that Apple has specifically developed solutions to make the device as powerful as possible.

iPhone 17 Air: Thin design meets strong battery performance

The iPhone 17 Air could be an exciting new addition to Apple's portfolio. Despite the extremely slim design, the battery life should be impressive thanks to a combination of new battery technology, an efficient C1 modem and optimized hardware decisions. If Apple manages to confirm these rumors and present a powerful, durable and elegant device, the iPhone 17 Air could be one of the most interesting smartphones of the year. However, how well the concept works in practice will only become clear after the official launch. (Image: Front Page Tech)

  • Apple's improved C1 modem: More speed and efficiency
  • Foldable iPhone from Apple: Everything about price, specs and design
  • Apple plans to integrate its own modems into the main chipset
  • Apple is already testing the C2 modem for future iPhones
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Milan Jovicic

Milan Jovicic

Milan founded Apfelpatient in 2016 and has been responsible for all editorial content since 2018 – news, rumors, how-to guides and product reviews. Here, Apple devices aren't review units kept for two weeks, they're everyday tools: from iPhone to MacBook Pro, MacBook Air and iMac all the way to Apple Vision Pro, at least one device from every product category is in daily use, many of them replaced every year. Every menu path in a guide is checked on the device before it goes live.

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