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I’m amazed this thread had so much discussion over what was very properly described as “trivial noise” a page or two ago in the thread. The complaints are definitely not very understanding of the capabilities of cables at hand. It’s quite simple really: Apple gives you a charging cable in the box, whether you buy a non-Pro or Pro iPhone 15 model. They do this because charging cables are flexible and they are adequate for 99.999% of the population buying phones (including people who buy Pro phones, who are NOT Pro users (transferring videos/photos or other substantial data).

Charging cables come in 2 lengths from Apple, 1m and 2m. A few years ago, they sold the normal looking rubbery nylon (or whatever it is) cable that was USB-C to USB-C and 1m, and it was tested somewhere around 100W. Fine. They also sold a 2m cable that performed around the same specs (possibly more for maintaining the MBP 140W), but was twice as long. Also fine. 2-3 years ago, Apple updated the 1m to be braided, and folks tested that one to be capable of around 60W. I am not 100% sure when but I believe they did this when they started shipping laptops with MagSafe again, as they then maintained the higher wattage ratings via MagSafe and lowered the wattage rating the 1m USB-C charge cables were capable of by keeping them thin, but now a nice braided/woven design. So braided 1m = ~60W. The 2m continued to be the rubbery nylon cable that everybody knew and hated, and it still maintained the 100ish watt rating. Probably higher for the 140W Macs, I don’t know the specifics of that cable.

Recently (as of the announcement of the iPhone 15 lineup), they added a 2m braided USB-C to USB-C charge cable and discontinued the old rubber/nylon one. They branded it as 240W. No devices support that, but that’s what they’re calling it. It’s thick, probably to support that high wattage. No devices support that charge capacity, but that doesn’t mean something won’t in the future. Anyways, that’s what they did.

Thunderbolt cables (or any USB 3 cable really) are needed in order to support faster data transfer. This is something that really only a true Pro user (someone doing video transfers or similar) needs. Your average joe iPhone 15 pro user will never need one of these cables. As stated by others, they are considerably thicker (due to needing more wires internally for the USB 3 requirements), less flexible, cost more money to make, and just generally would be a headache to use day-in and day-out for the vast majority of users. The cost of the phone would be higher to reflect the inclusion of one of those cables as well. It just plain wouldn’t make sense.

The best way to go about all of this is that unless you truly need to be transferring videos to a computer or external storage, just use the cable that came with the phone. If you need more length, buy the 2m 240W chunky boy they just released, or buy something aftermarket. If you need more data transfer speed, then you are a Pro user and you need to pony up the big bucks for the heckin’ chonker of a TB4 cable that Apple sells for $69 @ 1m.

TL;DR - if you aren’t moving a ton of data to a computer or storage, your supplied cable is perfectly adequate unless you need more length. You still have the option to buy whatever you want but it is suggested that you learn the capabilities of what you want to buy before doing so, otherwise you might just buy yourself another USB 2 cable, as most charging cables are USB 2. Apple’s cables are not really overpriced.
Really nice history and summary!

The only bummer to me is the 1m cable now being 60W, so they can't be used to charge "just whatever is around, iPad or MacBook".
Thank you for typing all this down, must have taken a while!
 
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The older 1m cables that charged ~100W max still didn’t charge a 140W MBP at full speed either. Not too big a deal, which is why Apple always included a 2m in the box until they started using MagSafe again.
 
This is the annoyance with USB-C.

Imagine I need to go to some overnight trip and want to grab one cable. I can charge MBP during the day and iPhone when I sleep. But I grab the wrong one and it takes longer to charge.

I wish they could add a color band or something to show it either powers above a certain wattage or has USB 3.0+. I don't need all the different varieties. Just if it's modern or not.
If you only use what you know are 5A cables you should not have this problem. My Anker PowerCore 24K works perfectly with almost all devices I have plugged into it, though I have unfortunately encountered a couple of anomalies, even with this power bank that I bought specifically because it had the full USB PD power range plus full 5A PPS. I bought it last year when it first came out and of course now this year they have a new model with even more features. Anyway, an ASUS ROG Strix G15 I tried once would start taking power, then stop taking power and just keep repeating that cycle, a headlight I have does not charge at all on the power bank's USB-C ports (although the headlight's USB-C port probably does not comply with all the rules considering it is a no-name brand) and like I mentioned earlier it does not charge from most General Motors USB-C ports. I have no idea if they fixed these on the new model as I do not plan on getting it since I already have this one.
 
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They CAN charge whatever’s around, though. The iPad will get around 30 W and the MacBook will get 60W.
I have the 13" MacBook Pro (2020) with the Core i7 and it pulls over 70W from my Anker PowerCore 24K. I have yet to have an iPad pull more than 30W from it, though I have not tried a 12.9" model.
 
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The older 1m cables that charged ~100W max still didn’t charge a 140W MBP at full speed either. Not too big a deal, which is why Apple always included a 2m in the box until they started using MagSafe again.
The USB-C ports on these machines do not have 28V input. Only the MagSafe port has 28V input, and unlike the USB-C ports, the PD trigger chip is built into the MagSafe cable itself, hence the long USB-C connector end. I believe the MagSafe port tells the PD trigger chip if the computer supports 28V input. So far, only 28V USB PD power banks like my Anker have had 28V input on USB-C ports.
 
I meant GM. Like, they can support a VERY simple charging profile and still say they’re USB-C compliant. GM may even think what Anker is trying to pull is “invalid” and just stops. :) Does your unit have a screen that shows the charging metrics? You could at least tell at what level it’s resetting.
It first says "0.1W" which happens for a few seconds on all power sources before charging begins but on the GM ports, as soon as the wattage starts climbing it goes back to only showing the battery percentage (i.e. nothing is connected.) Then it will just keep repeating the cycle over and over again until unplugged. Pretty much every other power source works fine including in other automaker's USB-C ports, some of which I only get 7.5W from.
 
No of course it won't. USB-C is "intelligent", the cable negotiates what it can handle. It's not under specing basic electrical cable in your home. You can plug a 15w cable into a 100w charger and it'll just charge at 15w (or less) and ditto the other way around.

Isn't the negotiation between the sink and source? That would leave the cable out of the picture with the assumption the user has used a properly spec'd cable; or do all greater than 5W cables negotiate current delivery capabilities? If the cable does not have a chip does the device fall back to 5Ws?

The cables are intelligent. They have emarker chips which communicate to the devices the speed of the data connection and the wattage of the power connection. Once that’s communicated, THEN the devices at either end communicate what they need from each other.

If a 100W charger is connected to a 140W laptop via a 30W/USB2 speed cable, once the connection is completed, the emarker will let both know “I do 30W and USB2 speeds”. They’ll both disregard the data speed (as this charger doesn’t send data) and negotiate how much of the 30W to provide. Which, in this case, is all of it.

So if a cable doesn't have an eMarker chip it the devices default to 3A max?

Correct - all cables tell the charger what they can do it and if it's passive it'll just pass the lowest (and it'd go against spec anyway)

a 20w cable in a 100w charger will negotiate 20w, a 100w cable in a 20w charger will negotiate 20w.
All USB-C cables are required to carry at least 20V⎓3A (60W). From there it goes to 20V⎓5A (100W) and now we have 48V⎓5A (240W). There is nothing in between these three. There are also some proprietary versions that can go above 5A but only with sources and devices that support their protocols. When not using supported sources and devices they function as regular 5A cables. If an eMarker chip is not present the source will limit itself to 3A. If one is present and it is coded for 5A it will allow use of the full 5A.
 
I have the 13" MacBook Pro (2020) with the Core i7 and it pulls over 70W from my Anker PowerCore 24K. I have yet to have an iPad pull more than 30W from it, though I have not tried a 12.9" model.
I’ve got the 12.9” and it pulls up to 35.6 (from battery pack with a screen telling how much each port is supplying).
 
I’ve got the 12.9” and it pulls up to 35.6 (from battery pack with a screen telling how much each port is supplying).
I frequently get my 12.9" close to dead, like 1-2%. When plugged into a 60W+ charger, I have occasionally seen higher than 40W, but it slows down once it reaches 40% or so. I believe the upper limit in the circuitry is 15V3A, but leaving some 0.5V and almost 1A headroom, so a typical wattage is more like 30W on average.
 
I frequently get my 12.9" close to dead, like 1-2%. When plugged into a 60W+ charger, I have occasionally seen higher than 40W, but it slows down once it reaches 40% or so. I believe the upper limit in the circuitry is 15V3A, but leaving some 0.5V and almost 1A headroom, so a typical wattage is more like 30W on average.
Are you measuring at the USB-C port or at the AC outlet? Measuring at the AC outlet is not accurate because additional power is needed to convert the AC power into the DC power that comes out of the USB-C port.
 
Are you measuring at the USB-C port or at the AC outlet? Measuring at the AC outlet is not accurate because additional power is needed to convert the AC power into the DC power that comes out of the USB-C port.
It's measured from the port, I got an ego 240W 6-port charger, each port has its own metering. I must say the conditions for >40W to happen is not often reached, so it is somewhat true to say iPad Pros are typically only doing 30ish W charging.

And back to the topic, I passed by Apple Store and ended up getting one 240W cable. This thing is REALLY well built, and doesn't seem to easily heated up.
 
It would definitely make sense for them to add 1m and 2m A to C cables to their lineup. Plenty of cars not using USB-C yet and Apple knows that.
There’s a wide variety of USB cable options that Apple doesn’t make. I mean, if there weren’t already thousands of options in the world, maybe? At this point the only thing an Apple cable would bring is a higher priced option of the same old thing.
 
There’s a wide variety of USB cable options that Apple doesn’t make. I mean, if there weren’t already thousands of options in the world, maybe? At this point the only thing an Apple cable would bring is a higher priced option of the same old thing.
I mostly agree, I just like Apple because I know what I’m getting. Crappy vinyl sheathing aside, I like their cables. The new woven options are nice. I don’t like the bulky ends on most of the A to C cables I’ve seen. The Best Buy Insignia brand cable I tried also didn’t have the nice snap into the port that the Apple cable has. Obviously there are others I can try that I’m sure would be better, but it would be nice if Apple had an option (I think).

Because of that I’m just using an Apple C to C cable and an A to C adapter in my truck’s port.
 
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