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iPhone 18 Pro Max Test Shows Much Faster Charging From 0% to 100%

Apple said the new iPhone 18 Pro models are capable of faster USB-C charging compared to the iPhone 17 Pro models, and a new video shared by the YouTube channel Xiaobai's Tech Reviews offers a closer look at the year-over-year improvement.

Black iPhone 18 Pro
As spotted by the account Ice Universe, the video reveals that the iPhone 18 Pro Max can go from 0% to 100% battery life in as little as 55 minutes with a capable charger, compared to 81 minutes for the iPhone 17 Pro Max. In other words, the iPhone 18 Pro Max can be "fully" charged 26 minutes faster compared to the previous generation (iPhones continue to receive a slow trickle of power even after they show 100% battery life).

In line with Apple's advertised claim, the video showed that the iPhone 18 Pro Max can reach 50% battery life in just 15 minutes, down from 20 minutes for the iPhone 17 Pro models.

The smaller iPhone 18 Pro should have similar charging speeds.

During the video's test, the iPhone 18 Pro Max reached a peak charging speed of 52W for the first 12 minutes of the charging session. Last year, the iPhone 17 Pro Max achieved a peak charging speed of 36W in a separate test conducted by ChargerLAB. As always, charging slows down later in a session to prevent overheating.

Exactly how useful these improvements are to you will depend on your charging habits. If you mostly charge your iPhone overnight, then faster charging is obviously not very beneficial. But if you find yourself topping up your iPhone throughout the day, then saving nearly a half hour on a 0% to 100% charge may be meaningful to you.

Apple's tech specs state that to achieve the fastest charging speeds on the iPhone 18 Pro models, you need to use a power adapter capable of 60W or higher with Adjustable Voltage Supply (AVS). Apple sells a charger that meets this description: its 40W Dynamic Power Adapter with 60W Max, which is priced at $39 on its U.S. online store.

The video referenced is in Chinese.

Related Roundup: iPhone 18 Pro
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Top Rated Comments

Englishmike2 Avatar
3 hours ago at 09:13 am
Just don’t get this need for charging quick. We needed this 10 years ago when the battery didn’t last half a day, now you can get 1 day plus I don’t see the obsession!
Score: 5 Votes (Like | Disagree)
3 hours ago at 09:19 am

Just charge it at night bruh
lol yea, this is great and not downlplaying it, but I got a 17 Pro 2 months ago and I usually end the day with like 60% battery. It's 12:19 right now and I'm sitting at 90%.
Score: 2 Votes (Like | Disagree)
Astuces iOS Avatar
3 hours ago at 09:14 am
Just charge it at night bruh
Score: 2 Votes (Like | Disagree)
MrTemple Avatar
3 hours ago at 09:13 am
A surprise, to be sure, but a welcome one.
Score: 2 Votes (Like | Disagree)
47 minutes ago at 11:43 am
Are you all getting the Apple charger with AVS? I thought my 65W Anker Nano II would do the same, but apparently this ultra fast charging requires AVS.

Update: I ordered the Apple one. Here are the technical details I found (I'm very ignorant to charging specs and how it works):
The Anker 65W Nano II advertises fixed USB-PD outputs of 5V/3A, 9V/3A, 15V/3A, and 20V/3.25A. Anker documents PPS support, but PPS and AVS are different programmable-voltage mechanisms. AVS allows the iPhone to negotiate a more precisely controlled voltage rather than forcing the phone to choose among those fixed voltage rails. Apple's adapter supports AVS ranges including 15-20V at 2A and 9-15V at 2.67A. One test reports the iPhone 18 Pro maintaining roughly 18V through much of the high-speed portion of the charge. That's a voltage that the Nano II cannot supply as a fixed PD profile.

Again, I know nothing about this, but based on that alone, I went with the Apple charger to be safe.
Score: 1 Votes (Like | Disagree)
SactoGuy18 Avatar
52 minutes ago at 11:38 am
In short, you want a USB-C charger capable of 65 watts from a single USB Type C port. Most modern chargers that support the Power Delivery 3.0 standard with 65 watt capability should get the faster charging speed with no problems.
Score: 1 Votes (Like | Disagree)