iPhone 16 Pro Max 16PM - wired charging speed?

[thecautioners]

My apologies as I can’t find the answer on my own, only answers regarding MagSafe. What is the max wired charging speed for the 16PM?

Next to my recliner in the living room I currently use my daughter’s 65W Chromebook charger and it’s pretty fast for my 15PM. Will this allow me to reach max speeds on my 16PM? Would I need a specific usbc cable? The living room is where I want the fastest charging, otherwise I use the updated Belkin MagSafe 3 in 1 to charge overnight and obviously speeds don’t matter when I’m sleeping thanks!

 

[The Doctor11]

I believe 16PM bumps up to 45W charging speeds so you should be set with that 65W. I worry about battery longevity if using fast charge too frequently. What’s your battery % after a year with the 15PM?

 

[thecautioners]

I believe 16PM bumps up to 45W charging speeds so you should be set with that 65W. I worry about battery longevity if using fast charge too frequently. What’s your battery % after a year with the 15PM?

91% with 290 cycles and mostly MagSafe charging

 

[fezzzer]

Bumping this up as I was about to put up a similar post.

I've seen a lot of 'confirmation' that the phone supports 45w of charging, but has this really been confirmed by anyone?

I wonder if it's a peak 45w at the lower end of the charge (ie between 10-20%) but then it tapers down?

Tomsguide says "Despite reports that the iPhone 16 Pro supports 45W charging, we did not see a difference in our testing. The good news is that MagSafe wireless charging sees a jump from 15W to 25W, if you’re using a 30W adapter." YET they show a 30 min charge percentage of 55% for the 16 Pro Max compared to 41% for the 15 Pro Max.

I will be setting mine up soon and will be able to test it out tomorrow on my Anker powerbank assuming that displays the correct output wattage.

 

[ikjadoon]

I believe the fastest tested for charging alone was 33W and charging + usage was 39W.

//

The 45W is likely the profile's limit (15V3A = 45W) versus older iPhone's profile (9V3A = 27W). Older iPhones maxed out their previous profile, but I think the 16s are only somewhat occupying the newer profile.

Explained in more detail below:

PetaPixel's review noted that the charging upgrade only kicks in for heavy usage + charging at the same time.

Then, this Medium post (paywall removed)

>The charging power of the iPhone 16 series is far from the hype. Under extreme conditions, the iPhone 16 Pro Max sustained 33W of charging power, with momentary peak power reaching 38W-39W. ... In typical usage scenarios, the maximum charging power of the iPhone 16 Pro Max was 27W, almost identical to the previous generation.

That's my understanding.

The "45W" is more of a limit, as I understand it. Previously, iPhones used the 9V x 3A USB-IF profile (which allows a maximum of 27W), where 3A is the maximum for normal USB-C cables.

USB-IF only has 5V*3A, 9V*3A, 15V*3A, and 20V*3A for most chargers (using the traditional fixed-voltage system). 12V is optional & thus rarely used.

5V*3A profile: 0 to 15W (3A) charging
9V*3A profile: >15W to 27W (3A) charging
15V*3A profile: >27W to 45W (3A) charging
20V*3A profile: >45W to 60W (3A) charging

So for Apple to even want 28W charging, Apple had to move to 15V and that profile allows up to 45W.

28W = 9V*3.1A = this violates USB-IF spec; you cannot exceed 3A
28W = 15V*1.9V = this is within USB-IF spec; it is below 3A

https://regulatoryinfo.apple.com/elabels/A3292 (can't find an active one for the 15 Pro, but I imagine it is 5V-9V⎓3A max).

View attachment 2421862

 

[fezzzer]

Nicely written posts, thanks!

All makes sense. I guess there’s some space for Apple to increase charging speeds with a software update in the future if they are conducting internal tests to make sure the batteries don’t degrade prematurely at higher charging speeds. Or, more likely it’ll just come with the 17 or 18