Technologies

Which 2025 iPhone Has the Best Battery? I’ve Crowned a New Power Winner

I looked at three years of exclusive CNET data of iPhone performance to find out which models hold their charges best.

Key takeaways:

The iPhone 17 Pro Max has outstanding battery life that easily lasts all day with charge to spare.
Our exclusive lab data shows you don’t need to pay over a grand for excellent battery life. The $829 iPhone 17’s battery lasts just as long as the $1,099 iPhone 17 Pro.
The ultrathin iPhone Air, with a modest battery capacity, outlasted Samsung’s premium Galaxy S25 phones.

You might say that battery life is just a small consideration when buying a new iPhone or Android phone now, but that stance gets shaky when you’re staring down a sliver of red in the battery gauge and have nowhere to plug in. After reviewing smartphones for over a decade, I’ve learned that longer battery life is the one feature people consistently want from their phones.

When Apple launched the new iPhone 17 series and iPhone Air, it spent considerable time touting the longer battery life of the iPhone 17, 17 Pro, and 17 Pro Max, as compared to their predecessors.

My fellow CNET reviewers and I have now had the chance to test those claims.

When introducing the iPhone Air and its super slim design, Apple showed a slide during its keynote stating that it has all-day battery life. However, the company undercut its claim on the next slide when it announced a new MagSafe battery pack designed for the Air, which fed into fears that a thinner design might indicate a significant sacrifice to battery life.

Your phone’s battery life is affected by multiple variables, like how bright you keep your display or if your phone has a weak signal from your carrier. How you use your phone has a big impact, too. Someone who is obsessively online will have a much different experience with their battery life than someone who has their phone in their bag at work and checks it on breaks.

So, how do you know whether the battery life is good on the iPhone Air and iPhone 17 series?

CNET tested the new Apple phones’ battery life three ways: through an anecdotal stress test, a video streaming test and observing battery life after everyday use. We also tested wired and wireless charging. Our lab data showed strong battery life for the iPhone 17, 17 Pro, 17 Pro Max and even the Air, especially compared to older iPhone models.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

The iPhone 17 Pro Max has excellent battery life

Bigger batteries don’t always mean superior battery life. There’s more to battery life than the physical size or capacity. Besides Huawei, Apple is the only major smartphone maker that builds its own hardware and software and can tune its phones to work off smaller batteries than most Android phones have.

The iPhone 17 Pro and 17 Pro Max have larger batteries than last year’s 16 Pro and 16 Pro Max. If you’re using an eSIM-only version of either phone, like the iPhone models sold in the US, your battery is even bigger because it takes up the space where the SIM card tray would be.

Frustratingly, Apple doesn’t share the capacity of the iPhone’s batteries, and part of the reason is that its batteries are often smaller than those in Android phones. Fortunately, the EU requires that Apple publish energy labels that include the capacity of its batteries on its site. Macrumors found the capacities for eSIM-only models. You can see how the new phones’ batteries compare to the ones in the iPhone 16 series:

iPhone Air: 3,149 mAh
iPhone 17: 3,692 mAh
iPhone 17 Pro: 4,252 mAh
iPhone 17 Pro Max: 5,088 mAh
iPhone 16: 3,561 mAh
iPhone 16 Plus: 4,674 mAh
iPhone 16 Pro: 3,582 mAh
iPhone 16 Pro Max: 4,685 mAh

CNET has two benchmark tests (video streaming and stress tests) that allow us to compare the battery performance of one phone against another. And because we’ve been using these tests for years, we can also compare a new phone against older models.

For example, if you have an iPhone 15 and are considering upgrading to an iPhone 17, we can tell you that the new iPhone will have a longer battery life out of the box than your old one.

In CNET’s 3-hour video battery test, where we streamed a video over Wi-Fi with the screen at full brightness, the iPhone 17 series did terrific, even if the results were not dramatically better than the iPhone 16 series.

Without a Plus model this year, the iPhone 17 Pro Max is the only model with a big battery (the biggest one ever in an iPhone), and it only lost 9% in the test. The lower the percentage lost, the better. This is the first time an iPhone stayed in single digits, and I should note that the 17 Pro Max tied the Motorola Razr (2024) for the best score since we’ve been running the test. The Razr has a less powerful processor and a smaller main screen with a lower resolution and less brightness.

The iPhone Air and 17 Pro dropped 15% in the test, the same as the iPhone 15. And the iPhone 17 lost only 11%, better than the iPhone 15 and 16.

Something to keep in mind is that the iPhone 17 has a 6.3-inch screen that supports a 1-120Hz variable refresh rate and a max brightness of 3,000 nits, compared to the iPhone 15 and 16, which have a 6.1-inch display with a 60Hz refresh rate and a max brightness of 2,000 nits.

The new Apple phones did well in CNET’s 45-minute endurance test, during which I played games, streamed videos, scrolled social media and took a video call. The 17 Pro Max only dropped a single percent, the best result this year, but behind the iPhone 16 Plus, which stayed at 100% (the best result for any phone).

The iPhone 17 and 17 Pro had the same result, dropping 2%, making the standard iPhone 17 look even more like an incredible value. The iPhone Air dropped 5%, which matches the iPhone 15 in the same test. For perspective, the Air did better in this test than the Samsung Galaxy S25 series and tied with the Motorola Razr Ultra.

The iPhone Air gets through a day

When we review phones, we set them up as our daily driver to use and test them like our personal phones. Real-world testing is often the best indicator of what a reader can expect to get from a phone.

I started each day with a full battery for the iPhone 17 Pro and 17 Pro Max and tracked how much battery I had throughout the day. I ended each day with plenty of battery left — even after shooting photos and videos or keeping the screen at full brightness while filming the review video. Below is a chart that shows how the iPhone 17 Pro Max’s battery performed for the first five days I had it.

Similarly, CNET senior technology reporter Abrar Al-Heeti highlights that the iPhone Air she reviewed regularly ends the day with about 20% to spare (after starting with a full battery). She said it would drop below 20% on heavier-use days by the time she was ready for bed.

«Impressively, the iPhone Air has consistently lasted all day over the last several weeks I’ve been using it,» Al-Heeti said. «But I’ve hardly had to touch that MagSafe battery pack to extend battery life during the day, which is reassuring.»

In our testing, a fully-charged MagSafe battery added 69% to the iPhone Air’s battery. When I asked her whether she’d recommend people buy the $99 MagSafe Battery for the Air, Al-Heeti said that she recommends it for someone who uses their phone often and doesn’t want to hunt for an outlet.

«I don’t like the idea of having to lug around an extra battery, no matter how thin or sleek it is, so I don’t tend to carry it with me unless I know I’m going to have a long day away from home,» Al-Heeti said.

She also reviewed the standard iPhone 17 and said it can easily last a little over a day, even after snapping photos, scrolling through social media, listening to audiobooks and music, texting and watching videos.

Al-Heeti’s review notes that over several days, she’d start with a full battery, between 8:30 and 9:30 a.m., and have 44% to 47% of a charge 12 hours later. If she didn’t recharge the iPhone 17 overnight, she’d still have about 30% to spare the next morning.

The iPhone 17 series charges fast

There are two ways to charge an iPhone: with a cable or with MagSafe (unless it’s the iPhone 16E, which doesn’t have MagSafe, just Qi charging). For wired charging, Apple recommends using a 40W charger with the iPhone 17, 17 Pro and 17 Pro Max and a 20W charger for the iPhone Air. However, Apple doesn’t include a charger in the box, just a USB-C cable, but the company does sell a 40W charger for $39 and a 20W charger for $19.

In our 30-minute wired charging test, the new phones, including the Air, did well. The iPhone 17, 17 Pro and 17 Pro Max added 10% or more than the iPhone 16, 16 Pro and 16 Pro Max in the same test. Apple says the 17 Pro and 17 Pro Max can recharge to 50% in 20 minutes. In our tests, the iPhone 17 Pro hit 53% and the iPhone 17 Pro Max hit 49% after 20 minutes.

The iPhone Air reached 49% in our 30-minute charging test with a 20W adapter, the same as the iPhone 16 and iPhone 15 Pro, beating the iPhone 15 Plus.

In wireless charging or MagSafe charging, we ran a 30-minute test with the latest MagSafe charger and a 30W power adapter. The iPhone 17 series and Air beat every iPhone we’ve ever tested except the iPhone 16 Pro, which did better than the Air and standard iPhone 17. I should note that iPhones don’t come with a MagSafe charger or 30W adapter in the box.

Which iPhone should you buy based on CNET Labs data?

Get the iPhone 17 Pro Max if you want the best battery life. The standard iPhone 17 has great battery life and inches out the more expensive iPhone 17 Pro. And if you’re on Team Air, know that the battery life isn’t great, but depending on how hard you use it, you should get through a day on a single charge.

I should also note that iOS 26 has a new Adaptive Power mode. This feature learns your phone’s use patterns and «adapts» how much power the processor uses for specific tasks, so it draws less from the battery. The new feature takes a week to start working. I turned it on after running CNET’s battery tests and will update this story with any changes or improvements that come from it.

Last, if you have an iPhone and the only issue is that its battery doesn’t charge as much as it used to, think about replacing it with a new one. Doing so will not only be hundreds of dollars cheaper than a new iPhone, but it can extend your phone’s life another couple of years.

Technologies

AI Brings Val Kilmer Back to the Big Screen a Year After His Death

Kilmer’s estate approves plans to use generative AI to resurrect the late actor for a role in the historical drama As Deep As the Grave.

Actor Val Kilmer died in 2025, but he’ll be seen in an upcoming movie he didn’t live to film. The historical archaeologist drama As Deep As the Grave will include an AI version of the actor who died at age 65 after a battle with throat cancer. It’s not the first time we’ve seen studios use AI this way, but it could be the most successful.

Director and writer Coerte Voorhees revealed to Variety on Wednesday that he would use AI to bring Kilmer’s likeness back to play Father Fintan, a Native American priest.

As Deep As the Grave tells the true story of an archaeologist couple who worked with the Navajo people in the 1920s to learn about America’s very first civilizations. Voorhees says that Kilmer agreed to play the role five years ago, but the actor’s struggles with throat cancer made him unable to complete work on it. There’s no date yet for the film’s release.

Hollywood actors have increasingly found themselves at odds with generative AI, a technology that has rapidly begun to infiltrate nearly every aspect of the entertainment industry. From writing scripts to generating digital likenesses of actors’ faces and voices, AI now has the ability to replicate performances with striking realism. In some instances, studios have gone even further, creating entirely new AI «actors» who can perform without ever stepping onto a set. This has raised complex questions about consent, compensation, and creative ownership, as performers grapple with the reality that their identities and craft can now be reproduced, modified, or even replaced by algorithms.

These attempts have been strongly opposed by the SAG-AFTRA labor union representing entertainers, which has been engaged in strikes against video game companies and is currently in precarious negotiations with film and TV studios. The labor guild has certain protections against generative AI following a strike that lasted more than 100 days, including requirements for clear consent and fair compensation. The current negotiations would expand these protections.

A SAG-AFTRA representative didn’t immediately respond to a request for comment.

Voorhees says that Kilmer’s children approve of this AI resurrection.

«[Kilmer] always looked at emerging technologies with optimism as a tool to expand the possibilities of storytelling,» his daughter, Mercedes Kilmer, said in a statement, according to Variety. «This spirit is something that we are all honoring within this specific film, of which he was an integral part.»

Technologies

Today’s NYT Mini Crossword Answers for Thursday, March 19

Here are the answers for The New York Times Mini Crossword for March 19.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.

Need some help with today’s Mini Crossword? It’s a pretty easy one today, but we’ve got all the answers in case you’re stumped. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Ghost’s word
Answer: BOO

4A clue: Magician’s «And just like that, it’s gone!»
Answer: POOF

5A clue: With 7-Across, it’s full of stars
Answer: NIGHT

6A clue: White bills in Monopoly
Answer: ONES

7A clue: See 5-Across
Answer: SKY

Mini down clues and answers

1D clue: Score of 4 on a par 3
Answer: BOGEY

2D clue: ___ and aahs
Answer: OOHS

3D clue: Frequently, in poetry
Answer: OFT

4D clue: Like the sands of Harbour Island, Bahamas
Answer: PINK

5D clue: Dissenting votes
Answer: NOS

Technologies

Customers Prefer Apps Over Websites for Wireless and Home Internet Service

Easier logins are a key reason customers are happier with apps, according to the J.D. Power study.

When you last checked your mobile or home internet bill, did you reach for your phone or sit down with your laptop or desktop computer? According to a new J.D. Power study, people would rather access their accounts via apps than websites. And that preference is especially strong when it comes to telecom companies such as mobile carriers and home internet providers (which increasingly overlap).

According to the 2026 US Telecom Digital Experience Study, surveyed customers gave app login an average satisfaction score of 681 for wireless carriers and 689 for internet service providers (out of 1,000 points). Website login trailed those by 38 points and 42 points, respectively. J.D. Power gathered evaluations from 12,082 customers of eight internet providers and 14 wireless carriers.

Biometric logins were a major factor in the decision. When accessing an account, there are always one or more layers of authentication just to get in. An app tends to speed you through the door using face or finger recognition to sign in or load a passkey.

Built-in services like Apple’s Passwords app can also use biometrics to unlock and fill in saved credentials in websites, but the experience isn’t as smooth. J.D. Power noted that maintenance issues and slow responsiveness also derail the website login experience across both segments.

This helps explain why carriers have invested heavily in improving their apps. For one, T-Mobile’s T-Life app is increasingly the central point of customer interaction. And AT&T just this week rolled out a new app — named simply AT&T — that is a single resource for its mobile and broadband customers.

AT&T’s Jeff Dixon, assistant vice president of Digital Product Management and Development, emphasized the importance of speed in the company’s app overhaul.

«We did focus on performance to make it snappy throughout,» he said, noting extensive architectural work on back-end services to cache and pre-fetch data.

The J.D. Power study also found that the gap between satisfaction with telecom companies’ apps and websites was wider than in other industries, suggesting that wireless and internet providers need to shore up their web experiences. There was a 25-point gap between apps and websites for wireless carriers, and an 11-point gap for internet service providers.

Overall, customer satisfaction was 654 out of 1,000 for wireless carriers and 659 for internet providers. Scores were based on four factors in order of importance: design, system performance, tools and capabilities, and information.

Ranking among the wireless carriers, Mint Mobile got the highest score (704), with Spectrum Mobile coming next (678) and followed by a tie between Metro by T-Mobile and T-Mobile itself (672). It’s worth noting that, of those, Spectrum is the only one not owned by T-Mobile.

For internet service providers, T-Mobile ranked the highest in the survey with a score of 695, followed by AT&T at 675 and Verizon at 669.