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04/09/2025
Nicole Newton

iPhone 17 battery and charging: all expected changes

The new iPhone 2025 is already generating huge buzz, and much of the excitement centres around its power source. Battery performance has always been one of the most important aspects of any smartphone, and Apple seems to be taking things up a notch with the iPhone 17 range. From the iPhone 17 Pro Max battery to the lightweight iPhone 17 Air battery, here’s everything we know about the upcoming devices and their battery power.

In this blog:

iPhone 17 Pro Max could sport Apple’s biggest battery yet

The iPhone 16 Pro Max currently holds the record for the largest Apple battery, at 4,685mAh. But according to the latest iPhone 17 battery rumours, the iPhone 17 Pro Max battery could be a massive 5,000mAh. That’s more than 300mAh larger than its predecessor, potentially making it the best new iPhone battery Apple has ever released.

With this kind of power, experts predict the iPhone 17 Pro Max battery life could last a staggering 35 hours or more, depending on your usage. That means more streaming, gaming and texting without constantly hunting for a charger. For heavy users, this could set a new benchmark for iPhone 17 battery life.

iPhone 17 Pro and base model improvements

It’s not just the Pro Max that’s getting a boost. The iPhone 17 Pro battery and the standard iPhone 17 battery are both expected to benefit from Apple’s latest tech, including the rumoured Adaptive Power system. This AI-powered battery management system could monitor usage patterns and adjust performance to maximise efficiency, ensuring a longer-lasting charge across the lineup. If these rumours are true, iPhone 17 battery life could see one of the biggest leaps in years.

A small but smart battery for the iPhone 17 Air

One of the most intriguing devices in the lineup is the rumoured slim and lightweight iPhone 17 Air. The iPhone 17 Air battery is expected to be just 2,800mAh due to its compact form. But thanks to Apple’s cutting-edge enhancements, the iPhone 17 Air battery life may outperform expectations.

Rumours suggest the Air could be fitted with a silicone-anode battery to improve performance despite its size. Paired with Adaptive Power, this should help extend usage times and make the Air a great choice for users who prioritise portability without sacrificing too much battery life.

Easier battery replacement

Another exciting change in the new iPhone battery design is the introduction of easier-to-remove, heat-dissipating metal battery covers. These will not only help with temperature regulation but also make replacing the battery much simpler than in past models. For users looking to extend their phone’s lifespan, this is a big win.

Should you buy a new iPhone in 2025?

If you’ve been waiting for a meaningful upgrade, the new iPhone 17 series might be the one to go for. With major improvements to iPhone 17 battery capacity, smarter power management and the potential for record-breaking longevity, it could be the most user-friendly iPhone yet.

Whether you’re considering the powerhouse iPhone 17 Pro Max battery, the balanced iPhone 17 Pro battery, or the lightweight iPhone 17 Air battery, Apple seems to be making big strides in ensuring their next-gen devices last longer and perform better. For many, the promise of better iPhone 17 battery life is reason enough to buy a new iPhone when the lineup launches!

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