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Despite not being advertised by Apple, the iPhone 13 Pro Max is capable of faster charging at up to 27W speeds when connected to a 30W or higher USB-C power adapter, according to testing conducted by ChargerLAB. For comparison, the iPhone 12 Pro Max is capable of charging at up to around 21W to 22W speeds with an equivalent power adapter.

iphone-13-pro-max-display.jpeg

It's worth noting that the iPhone 13 Pro Max does not sustain peak 27W power for the entire charging cycle due to heat considerations, but the device should still charge slightly faster than the iPhone 12 Pro Max overall.


It's unclear if the smaller iPhone 13 Pro is also capable of charging at up to 27W speeds — we've asked ChargerLAB and we'll update this story if we hear back. The standard iPhone 13 and iPhone 13 mini are limited to roughly the same charging speeds as the equivalent iPhone 12 models, according to a user on Chinese social media platform Weibo.

Apple no longer includes a charger in the box with new iPhones, but it does sell a 30W USB-C power adapter for $49 for users who want to charge their iPhone 13 Pro Max as quickly as possible in light of this discovery.

Update: ChargerLAB has informed MacRumors that the smaller iPhone 13 Pro achieved max charging speeds of 23W in its testing.

Article Link: iPhone 13 Pro Max Capable of Faster Charging at Up to 27W Speeds
 
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alternamelka

macrumors member
Nov 26, 2020
51
78
uk
When I was using my MBP brick to charge my iPhone 13 Pro Max during the set up it kept saying the restore process stopped due to device temperature so I had to rub an ice cube on the back of the phone so it would continue restoring my iCloud backup.
 
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CIA

macrumors 6502a
Jun 17, 2003
612
310
Nice to know it's there in a pinch, but I still use an old 5W iPod charger and just plug in overnight. Sure it's slow, but I'm sleeping.

Heck I charge my 12.9 M1 iPad Pro overnight on a 5W brick as well. (USB A to USB C cable)
 

kalafalas

macrumors 6502
Aug 26, 2008
420
1,212
California
What are the impacts to battery longevity?
Quick charging does not make your battery wear out quicker - heat does. 27w charging is probably no worse, if not even better, for longevity than wireless charging. Unless you are charging in extreme conditions (direct sunlight, 100° heat with no AC), none of the charging options will degrade your battery any faster or slower, especially considering the phone will slow charging down when it’s too hot anyway.
 

NinjaHERO

macrumors 6502a
Aug 29, 2008
945
1,142
U S of A
If that's the only difference I can live with the 13 Pro instead of the Pro Max. Upgraded to the 12 Pro Max last year because the camera was better. I definitely prefer the smaller size though. Excited for my 13 pro
 

kalafalas

macrumors 6502
Aug 26, 2008
420
1,212
California
If that's the only difference I can live with the 13 Pro instead of the Pro Max. Upgraded to the 12 Pro Max last year because the camera was better. I definitely prefer the smaller size though. Excited for my 13 pro
They haven’t tested the regular pro yet, it most likely uses the same tristar
 
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nutmac

macrumors 603
Mar 30, 2004
5,389
5,200
What are the impacts to battery longevity?
Apple should refine "Optimized Battery Charging" setting (on Battery Health Settings page) to reduce the heat. That is, learn my daily charging routine and charge at slower speed when appropriate (e.g., charging overnight) whether it is over Lightning or MagSafe.
 
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Prof.

macrumors 603
Aug 17, 2007
5,132
1,294
Chicagoland
Quick charging does not make your battery wear out quicker - heat does. 27w charging is probably no worse, if not even better, for longevity than wireless charging. Unless you are charging in extreme conditions (direct sunlight, 100° heat with no AC), none of the charging options will degrade your battery any faster or slower, especially considering the phone will slow charging down when it’s too hot anyway.
Thoughts on leaving your iPhone in its case? Heard mixed reviews.

Personally, I leave my iPhone in the Apple leather case when charging with MagSafe.
 
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Ion-X

macrumors regular
Oct 23, 2017
180
596
NYC
I plug my iPhone into a 100W Anker multi-charger via USB-C. I wonder if the Anker will deliver the full 27W at any point or if it will fall back to 18-20W?

I do have an extra 30W charger I could use since that should definitely work.
 

aesc80

macrumors 68000
Mar 24, 2015
1,983
6,154
Surprised people care about battery health. I don’t care I rather have my phone charge faster.
One part is environmental, another part is "score keeping". Some people would rather tout 98% battery life after 1 whole year doing trickle charging versus 89% and constantly wired. It doesn't particularly save anything though, if it means updating the phone every 1 to 2 years. (here comes the downvotes!)
 

Lounge vibes 05

macrumors 65816
May 30, 2016
1,419
4,926
Quick charging does not make your battery wear out quicker - heat does. 27w charging is probably no worse, if not even better, for longevity than wireless charging. Unless you are charging in extreme conditions (direct sunlight, 100° heat with no AC), none of the charging options will degrade your battery any faster or slower, especially considering the phone will slow charging down when it’s too hot anyway.
Not necessarily true, extreme fast charging does create more heat.
In the long run, using a 5W charger is still better for the batteries health than using a 30W charger.
But as for actual real world differences, it’s probably extremely minimal.
As long as the battery isn’t getting constant 0 to 100 cycles, and is usually somewhere between 20 and 80%, it should be fine.
Especially for a phone like the 13 promax, where battery degradation most likely will not be noticeable for quite a while, because the battery is already so good
 

KurtWilde

macrumors member
May 12, 2008
46
52
When I was using my MBP brick to charge my iPhone 13 Pro Max during the set up it kept saying the restore process stopped due to device temperature so I had to rub an ice cube on the back of the phone so it would continue restoring my iCloud backup.

Same. USB-C into Windows work laptop. Wasn’t overly hot or even warm to the touch but restore kept pausing. Ice pack ftw.
 

macar00n

macrumors regular
Aug 6, 2021
228
643
I plug my iPhone into a 100W Anker multi-charger via USB-C. I wonder if the Anker will deliver the full 27W at any point or if it will fall back to 18-20W?

I do have an extra 30W charger I could use since that should definitely work.
Only 100W? I plug mine into a 3KW gas powered generator. It charges fast and the fumes help me sleep. I just need to remember to not set the timer too long.
 
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