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Teardown of Apple 40W dynamic power adapter with 60W max

chargerlab.com

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Re: Teardown of Apple 40W dynamic power adapter with 60W max

#131

Post by xandrius »

Spooky23 wrote: post #77
ryukoposting wrote: post #34

This is very cool, I might actually get one to charge my laptop. That being said... I can't be the only person who consciously avoids fast-charging my phone. My whole apartment is full of wireless charging pads intentionally plugged into weak chargers (wireless charging avoids putting wear on the USB port). 60 watts can't possibly be healthy for a battery small enough to fit into a phone.

You aren’t, but that concern is mostly superstition. I work at a place with a huge phone fleet. We have interns study our telemetry and records because I kids like phones and they find ways to save us money. We allow for low friction replacements of phones at 12 months — the average replacement is ~27. The most common issues are cracked screens and excessive scratching on iPhone 16 and a Samsung I cannot recall. Batt…

What's wrong with expecting 5 years? Am I insane to expect an electronic device to last as much as possible? And if I had to come up with s number, I'd say 10 years at least.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#132

Post by xandrius »

LeoPanthera wrote: post #37
jnieminen wrote: post #9

How does one distinguish between all the tiny devils in the details between all possible chargers to have the maximum efficiency in ones iPhone charging?

I write on mine with a marker. Ugly, but useful.

Or put some colored tape.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#134

Post by tyleo »

__float wrote: post #75
dicknuckle wrote: post #71

Earlier quoted context omitted.

The issue seems to be with Chrome based browsers.

The website explicitly disables it; they have a viewport meta tag with: initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no I think it's more likely Safari these days just ignores this, because of the very problem OP complained about.

Yeah, I actually think Safari has the right behavior here. I use zoom features all the time on all my devices.

I actually prefer pinch zoom than developers implementing accessibility features which often don’t test all hardware and get glitchy at certain zoom levels.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#135

Post by madaxe_again »

lxgr wrote: post #113
Reason077 wrote: post #13

Hopefully Apple releases a UK version of this adapter soon. The design looks very similar to my beloved Apple UK 20W charger [1]. I’d buy a 40-60W version in a heartbeat! [1] https://www.amazon.co.uk/Apple-20W-USB-C-Power-Adapter/dp/B0...

Wow, that does look very neat for an Apple charger. The prongs are individually foldable, right? I wish there was something like this for Europlug chargers. Ironically, the most compact USB adapter for me so far is one with a US plug, combined with an US-to-Europlug adapter, which can be made very compact, but seem a bit risky at 220V, given that US plugs expose the prongs while connected.

On the U.K. plug, the pins are linked by a mechanism to the earth pin, to prevent the user from plugging it in without the earth pin too - so foldable en masse, rather than individually.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#136

Post by coder543 »

lxgr wrote: post #112
coder543 wrote: post #74

Earlier quoted context omitted.

This post[0] seemed to be the main source of confusion, but it has since been updated at the bottom to apologize and say it wasn’t true. You don’t need some kind of special charger. [0]: https://9to5mac.com/2025/09/13/iphone-17-pro-fast-charging-p...

That said, the Apple 40W charger does support AVS according to the fine print on its exterior: https://photos5.appleinsider.com/gallery/65105-135925-Dynami... I could definitely see maximum sustained charging speeds only being sustained with optimal supply voltages, which minimizes converter loss (and thereby heat, which is the actual limiting factor for fast charging these days) in the phone.

I didn’t say the charger doesn’t support AVS. AVS is fine, but the practical impact on charging time is going to be difficult to notice in this specific case, if it exists at all. Apple does not even hint that AVS is needed to meet their charging time claim in their official documentation: https://support.apple.com/en-us/102574

Apple simply says “For iPhone 17 models, you can charge up to 50% battery in around 20 minutes with a 40W adapter or higher.”

Sure, it would be fun to see someone do a thorough test on this. No, I don’t agree with all the posts that are fear mongering people into believing they need some super fancy charger to reach the charging speeds Apple claimed, when Apple themselves doesn’t claim that, and the original 9to5Mac article no longer claims this true. There is simply no reason to believe that AVS is required, and anyone saying that has the burden of proof here.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#139

Post by lloydatkinson »

tyleo wrote: post #133

If anyone is in the market for power adapters I find SlimQ to be top tier. https://slimq.life/

I was mildly impressed until it got to the wall of slack-jawed selfies featuring titles like “gen-streamer” and my scam alarm bell started ringing.

Re: Teardown of Apple 40W dynamic power adapter with 60W max

#140

Post by [deleted] »

happyopossum wrote: post #84
jorvi wrote: post #59

Earlier quoted context omitted.

You're completely ignoring that Apple is purposely choosing not to also add support PPS and instead use AVS so they can push people from generic Anker / Belkin / Baseus PPS chargers to their own Apple chargers. For a while anyway. It would make more sense if they used it for their MacBook chargers, but AFAIK the sole charger they having going beyond 100W is the 16" Pro charger at 140W. Every other Macbook charger is…

This is coming across as more than a bit delusional. Adding a new standard to a charger is not “forcing” anyone to avoid other chargers in any sense. AVS adds functionality to this charger, it doesn’t take it away from other ones.

[deleted]
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