New leak reveals the iPhone 17 Air may feature a 2.49mm battery that is half the thickness of the iPhone 17 Pro’s. Here’s what we know about battery life, performance, and design.
A New Era of Thin: iPhone 17 Air Battery Reveals One of Apple’s Most Radical Design Changes in Years
Posted by reliable Korean source yeux1122 on Naver, the leaked image shows the iPhone 17 Air battery side-by-side with the iPhone 17 Pro battery, emphasizing just how thin this new internal component really is. Previous reports peg the Air’s overall thickness at just 5.5mm, which would make it the thinnest iPhone ever produced.
iPhone 17 Air Battery Capacity: Under 3,000mAh?
According to early details, the battery capacity is estimated at 2800mAh, a figure confirmed by yeux1122 back in may and echoed by Instant Digital on Weibo as well. That puts it below the 3000mAh mark which is comparable to earlier models like the iPhone 13 mini and iPhone SE 2.
While these numbers sound low in an era of 5000mAh Android flagships, it’s worth noting that Apple typically uses high-efficiency chips and software optimizations to compensate.
Don’t miss this: iPhone 17 Air Hands-On Video Reveals Ultra-Thin Black Design and Camera Bar
Still, leaked internal testing suggests that only 60–70% of users may get a full day of use on a single charge with the iPhone 17 Air. In contrast, other iPhone models typically offer full-day performance to 80–90% of users.
Silicon-Anode Batteries and High-Density Power Tech
One bright spot? Apple could be taking a leap in battery innovation. Bloomberg reported that supply chain sources suggest that Apple supplier TDK is preparing to ship silicon-anode batteries by the end of June. This technology allows for more power in slimmer formats.
Apple May Offer Battery Case for iPhone 17 Air
To mitigate potential battery concerns, Apple is reportedly planning to offer a dedicated battery case as an optional accessory for iPhone 17 Air users. This echoes past strategies seen with the Smart Battery Case, especially for users with higher power demands.
Suggested: iPhone 17 Air Could Still Look Ultra-Slim Even in a Case [Video]
Hardware Optimizations: C1 Modem and Missing Ultra Wide Camera
There’s more happening under the hood to help with battery life:
- The iPhone 17 Air may debut with Apple’s new C1 modem, designed for greater power efficiency.
- It may also omit the Ultra Wide camera, a move that could help conserve battery and free up internal space.
All signs point to a delicate balance between thin design, battery innovation, and software-level power management such as iOS 26’s Adaptive Power mode.
iPhone 17 Air Launch Timeline
If Apple follows its usual schedule, the iPhone 17 Air will be announced in mid-September 2025. Whether the ultra-thin form factor comes at the cost of battery life remains to be seen.
For now, all eyes are on Apple’s upcoming keynote, where we’ll learn if these advanced battery technologies and form factor changes become official.
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