Rumors suggest the iPhone 17 will have battery and charging upgrades.

The iPhone 17 series has been released, featuring bigger batteries, quicker charging, Qi2 compatibility, and AI-driven battery enhancements via iOS 26. Here is a summary of battery and charging features for the iPhone 17, iPhone Air, iPhone 17 Pro, and iPhone 17 Pro Max.

Apple claims the longest iPhone battery life to date, with significant improvements across the range:

Model Video playback Video playback (streamed)

iPhone 17 Up to 30 hrs Up to 27 hrs

iPhone Air Up to 27 hrs (40 hrs with MagSafe Battery) Up to 22 hrs (35 hrs with MagSafe Battery)

iPhone 17 Pro Up to 33 hrs Up to 30 hrs

iPhone 17 Pro Max Up to 39 hrs Up to 35 hrs

The iPhone 17 Pro Max can play video for up to 39 hours, which is the most ever. Despite having a smaller 3,149 mAh battery, the thinner iPhone Air should last a full day. Apple has also created a new low-profile MagSafe Battery Pack for the Air, which increases playback time to roughly 40 hours.

To achieve greater energy density and a longer lifespan, all models now employ stacked battery technology. The Pro and Pro Max versions have a vapor chamber cooling system incorporated into their aluminum frames, which helps to maintain performance and boost efficiency when under intense use.

Adaptive Power Mode is included in iOS 26. It learns from user habits and only restricts background activity when absolutely necessary, making it a more intelligent and less intrusive upgrade to the previous Low Power Mode.

What is the battery capacity of the iPhone 17 models?

Apple does not publish battery capacities on its website, however, the approximate numbers are:

Model Expected Battery Capacity

iPhone 17 ~3,692 mAh

iPhone 17 Air ~3,149 mAh

iPhone 17 Pro ~3,988 mAh

iPhone 17 Pro Max ~4,832 mAh

How quickly will the iPhone 17 series charge?

Apple didn't go into great detail about charging improvements, but there appear to be some.

Wired charging (USB-C with Power Delivery 2.0):

iPhone 17 & Pro: 50% in about 20 minutes using a 40W adapter

iPhone 17 Air: 50% in about 30 minutes using a 20W adapter, or quicker with a 30W adapter

iPhone 17 Pro Max: 50% in about 20 minutes using a 40W adapter

Is wireless charging available on the iPhone 17 series?

Yes, wireless charging is supported on all iPhone 17 variants, including the new iPhone Air.

Wireless charging (MagSafe & Qi2):

iPhone 17, 17 Pro, 17 Pro Max: up to 25W

iPhone Air: up to 20W

Qi2 compatibility enables you to receive complete speeds with compatible third-party chargers, not just Apple's MagSafe accessories.

Is reverse wireless charging supported by the iPhone 17 series?

No. Although reverse wired charging is supported by all 2025 iPhone models, Apple has not officially verified reverse wireless charging.

Which charger is used by the iPhone 17 series?

The iPhone 17 series (as well as the iPhone Air) uses USB-C with USB Power Delivery (PD). This means you may still obtain near-maximum speeds by using third-party PD/PPS chargers from companies such as Anker, Ugreen, and Baseus. Apple does not restrict fast charging to proprietary protocols such as Xiaomi or OnePlus.

Apple is offering a new 40W Dynamic Power Adapter with 60W Max for $39 in the United States for optimal performance. When used with this charger, the iPhone 17 Pro and Pro Max can achieve 50% in just 20 minutes. It is also available for purchase in Canada, China, Japan, Mexico, Taiwan, and the Philippines.

Apple is also offering a new Qi2-certified MagSafe Charger with a maximum output of 25W, available in 1-meter ($39) and 2-meter ($49) lengths. These chargers enable the 2025 iPhones' maximum wireless charging rates.

As anticipated, none of the boxes include a charger; only a USB-C cable. A high-quality 30W–45W PD charger will still offer speeds that are almost at their peak if you don't buy Apple's new adapter.