New iPhone Battery Should Be Up to 10% Denser for Longer Life - MacRumors
Skip to Content

New iPhone Battery Should Be Up to 10% Denser for Longer Life

A new iPhone battery with a metal casing should allow for higher energy density to deliver longer battery life, Apple analyst Ming-Chi Kuo claims.

iphone 16 pro battery kosutamiAlleged iPhone 16 Pro battery with new metal casing.

In a post on X (formerly Twitter), Kuo said that Apple's adoption of a stainless steel casing for the iPhone's battery will allow for five to 10 percent higher cell density while remaining within safety limits, as well as meeting the requirements of new EU regulations. Alleged images of an iPhone 16 Pro battery with a metal casing leaked in late 2023 and The Information has since detailed Apple's work to simplify iPhone battery replacement starting with the iPhone 16.

New EU law requires smartphone manufacturers to ensure batteries can be replaced by owners using easily accessible tools by 2025. Apple plans to achieve this with the use of electrically induced adhesive debonding technology, allowing users to apply a low voltage of electricity to quickly dislodge the battery instead of finicky adhesive strips. This new battery replacement method is anticipated to debut in at least one ‌iPhone 16‌ model later this year and could extend to all versions of the iPhone 17 next year.

Related Forum: iPhone

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...

Top Rated Comments

dredlew Avatar
23 months ago

Can we please stop reminding people the X was formerly Twitter. Anyone who cares already knows
Just call it Twitter, because everyone already knows what it is. X as name is ridiculous anyway.
Score: 9 Votes (Like | Disagree)
azentropy Avatar
23 months ago
Good, then make a smaller iPhone again.
Score: 7 Votes (Like | Disagree)
23 months ago

Isn’t it more likely Apple will do this just to maintain the current battery life expectations even with such a change? Especially with Apple Intelligence looming?
The extra RAM and AI processing they're going to put in the phone is going to eat up the extra capacity for sure. That's why they're making the screens bigger - bigger screen means bigger phone means more room for battery.
Score: 7 Votes (Like | Disagree)
23 months ago
Stainless steel casing means more weight.
Score: 5 Votes (Like | Disagree)
coffeemilktea Avatar
23 months ago
Does this mean the rumored iPhone 17 Slim ('https://www.geekwebguides.com/2024/05/17/slimmer-iphone-17-major-redesign-rumor/') won't have hilariously bad battery life? We can only hope so. 😩
Score: 4 Votes (Like | Disagree)
23 months ago

New EU law requires smartphone manufacturers to ensure batteries can be replaced by owners using easily accessible tools by 2025. Apple plans to achieve this with the use of electrically induced adhesive debonding technology, allowing users to apply a low voltage of electricity to quickly dislodge the battery instead of finicky adhesive strips. This new battery replacement method is anticipated to debut in at least one iPhone 16 model later this year and could extend to all versions of the iPhone 17 next year.
At least the EU doing something useful for the Rest of the World again...
Score: 2 Votes (Like | Disagree)