This is complete garbage. You don’t need a laptop charger for quick charging. All you need is a cheap iPad charger. Seriously, I can’t believe I’m even seeing this article.
Furthermore, with 10-15$ Qi pad at work and home in a few spots, you can very easily keep things topped off.
The quick charging feature advertised 50% in 30 minutes from depleted -- requires USB-PD which is integral to USB-C. That's not possible with the "cheap iPad charger" which likely isn't USB-A of which you speak.
I don't disagree with your second assertion, but this isn't about topping off.
The current iPhones will only pull up to the wattage that they are designed for which is 5 watts (5v - 1A) no matter what charger you are using. Inferior chargers may only be giving you 4 watts or so.
The new iPhones are designed to pull more amperage which I am guessing may be 2.4A, so maybe 12 watts at 5 volts.
So a 12W iPad charger should give you just as fast a charge as the 29W, 61W, and 87W USB-c chargers since they only provide 12W (2.4A) to a 5 volt iPhone or IPad or any other 5 volt device.
Apple has specifically noted USB-PD as being needed for the 50 percent charge in 30 minutes from depleted, requiring a USB-C charger.
My guess is that fast charging will require the 9 volts capabilities that are available on the Apple 29W, 61W, and 87W USB-C chargers. Each of these can provide up to 3A or 27W maximum at 9 volts. Each of these can provide up to 2.4A or 12W maximum at 5 volts. The 29/61/87 watt ratings are at 20.3 volts and at 1.5A/3A/4.3A respectively.
Wireless fast charging will most likely require a 9 volt charging pad. I don't know if these exist yet?
The above comment is incorrect. Apple did not mention the fast-charging on the higher wattage charger because then Apple would have had to explain that you are wasting your money getting the higher wattage chargers just to charge your new iPhones. People with Macs who already have any of the three chargers will be able to use them to fast-charge their new iPhones.
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
We will have to wait and see. I did some more checking and the 29W charger may only have 14.5 volt and 5 volt options, not 9 volt or 20.3 volt options.
Qualcomm chips in android phones allow them to use any voltage between 3.6 and 20 volts to optimize fast charging.
I’m going to email Apple as it would be nice to have some verification from them as to whether all their USB-C chargers will Work or just the 29 Watt one as with their other products that support fast charge... I will let you know if I hear back...
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
My 87W MacBook Pro fast-charges my iPad Pro fine, and negotiates the V/A difference perfectly. Apple has tested the fast charging with its entire line of USB-C chargers.
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
My 87W MacBook Pro fast-charges my iPad Pro fine, and negotiates the V/A difference perfectly. Apple has tested the fast charging with its entire line of USB-C chargers.
I’m sorry but that’s not correct. Your 87 Watt charger charges your iPad Pro but it is not fast charging it. The 61 Watt and 87 Watt USB -C chargers will only charge the iPad Pro at 12 Watts. (5 volts @ 2.4 amps). Details of this can be found via a quick a google all over the internet.
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
My 87W MacBook Pro fast-charges my iPad Pro fine, and negotiates the V/A difference perfectly. Apple has tested the fast charging with its entire line of USB-C chargers.
I’m sorry but that’s not correct. Your 87 Watt charger charges your iPad Pro but it is not fast charging it. The 61 Watt and 87 Watt USB -C chargers will only charge the iPad Pro at 12 Watts. (5 volts @ 2.4 amps). Details of this can be found via a quick a google all over the internet.
Did you read the second line in my post? The "Apple has tested..." part?
We're also talking about two different things. Faster charging in the iPad Pro with the USB-C to Lightning cable is not USB-PD. Quick charging from 0 to 50 percent in 30 minutes is USB-PD in the iPhone 8 and X. I understand what you're saying from a physics standpoint, but you're combining dissimilar things.
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
My 87W MacBook Pro fast-charges my iPad Pro fine, and negotiates the V/A difference perfectly. Apple has tested the fast charging with its entire line of USB-C chargers.
I’m sorry but that’s not correct. Your 87 Watt charger charges your iPad Pro but it is not fast charging it. The 61 Watt and 87 Watt USB -C chargers will only charge the iPad Pro at 12 Watts. (5 volts @ 2.4 amps). Details of this can be found via a quick a google all over the internet.
Did you read the second line in my post? The "Apple has tested..." part?
We're also talking about two different things. Faster charging in the iPad Pro with the USB-C to Lightning cable is not USB-PD. Quick charging from 0 to 50 percent in 30 minutes is USB-PD in the iPhone 8 and X. I understand what you're saying from a physics standpoint, but you're combining dissimilar things.
I had doubts as I could find no official documentation from Apple. I stated above in another post that I would contact Apple to confirm. I was disagreeing that the iPad Pro could be fast charged with anything other than a 29 watt charger.
The following has been confirmed by Apple regarding the new iPhones. Therefore Sir you were correct and I apologise... They do support USB-PD.
They pointed me to some small text on the bottom of the iPhone 8 specification page... “Testing conducted by Apple in August 2017 using preproduction iPhone 8 and iPhone 8 Plus units and software and accessory Apple USB-C Power Adapters (29W Model A1540, 61W Model A1718, 87W Model A1719). Fast-charge testing conducted with drained iPhone units. Charge time varies with environmental factors; actual results will vary.”
We will have to wait and see when the phones are released. But if this was the case then why does only the 29 Watt charger fast charge the new 10.5” iPad Pro? I have an 87 Watt charger from my MacBook Pro and this does not fast charge the new 10.5” iPad Pro.
Like I said above, the reason is explained in the article below;
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
My 87W MacBook Pro fast-charges my iPad Pro fine, and negotiates the V/A difference perfectly. Apple has tested the fast charging with its entire line of USB-C chargers.
I’m sorry but that’s not correct. Your 87 Watt charger charges your iPad Pro but it is not fast charging it. The 61 Watt and 87 Watt USB -C chargers will only charge the iPad Pro at 12 Watts. (5 volts @ 2.4 amps). Details of this can be found via a quick a google all over the internet.
Did you read the second line in my post? The "Apple has tested..." part?
We're also talking about two different things. Faster charging in the iPad Pro with the USB-C to Lightning cable is not USB-PD. Quick charging from 0 to 50 percent in 30 minutes is USB-PD in the iPhone 8 and X. I understand what you're saying from a physics standpoint, but you're combining dissimilar things.
I had doubts as I could find no official documentation from Apple. I stated above in another post that I would contact Apple to confirm. I was disagreeing that the iPad Pro could be fast charged with anything other than a 29 watt charger.
The following has been confirmed by Apple regarding the new iPhones. Therefore Sir you were correct and I apologise... They do support USB-PD.
They pointed me to some small text on the bottom of the iPhone 8 specification page... “Testing conducted by Apple in August 2017 using preproduction iPhone 8 and iPhone 8 Plus units and software and accessory Apple USB-C Power Adapters (29W Model A1540, 61W Model A1718, 87W Model A1719). Fast-charge testing conducted with drained iPhone units. Charge time varies with environmental factors; actual results will vary.”
I have a first gen IPAD Pro 12.9. I went around on a bunch of stuff, and here's what I found out:
1) I tried the Amazon basics and multiple cables. Only the Apple cable will work for high speed charging. I bought an open box off of ebay and it works perfectly. 2) I tried the Anker charger, with the USB-PD and 4 regular ports. On the Anker site, it says that you should use the regular ports to charge an IPAD. I put a USB-C power meter, and the Anker charges the IPAD at 5V 1A, so 5W, slower than molasses. Took hours to charge the device. I have not tried the Anker 30W USB-C charger, but suspect it works because it's likely 15V 2A which would be the fastest speed. 3) I tried the Apple 29W USB-C power adapter. It charges the IPAD at 14.5V, 2A, so 29W. This works great. 4) I tried the Apple 87W USB-C power adapter. It charges the IPAD at 9V, 2A, so 18W. That's only marginally faster than the included 12W power adapter. I think it's pretty disingenuous for Apple to claim that this adapter quick charges the IPAD when it's not the fastest charing solution.
So, my conclusions.
* I don't know what's special about the Apple cable, but I haven't found another one that works. * It looks like the IPAD gen1 accepts up to 2A (except 5V where it accepts 2.4A). It will use 5V, 9V, or 14.5V. The 87W Apple adapter supports 20V 4.3A, 9V 3A, and 5V 2.4A. The problem seems to be that it doesn't support 14.5V, so it charges slower.
I don't have an iPhone 8 yet, but it's on the way, and I'll test and post here what I find with that. I also don't have Gen2 IPAD Pro models to test either, with no plans to buy one.
Comments
The quick charging feature advertised 50% in 30 minutes from depleted -- requires USB-PD which is integral to USB-C. That's not possible with the "cheap iPad charger" which likely isn't USB-A of which you speak.
I don't disagree with your second assertion, but this isn't about topping off.
Wireless fast charging will most likely require a 9 volt charging pad. I don't know if these exist yet?
Like I said above, the reason is explained in the article below;
https://forums.macrumors.com/threads/87w-usb-c-charger-doesnt-charge-12-9-ipad-pro-29w.2015416/
I hope for everyone’s sake that you’re correct... But I have a feeling that Apple will be selling a lot more 29 Watt USB - C chargers as it’s the one that we all don’t have ... But as I found out... It’s the one we need for Apple fast charge
Qualcomm chips in android phones allow them to use any voltage between 3.6 and 20 volts to optimize fast charging.
I will let you know if I hear back...
https://gtrusted.com/apple-ipad-pro-enjoys-fast-charging-with-the-apple-87w-usb-c-power-adapter-over-usb-power-delivery
https://www.imore.com/best-way-fast-charge-your-ipad-pro?amp
Only the 29 Watt USB-C charger supports fast charging 14.5V / 2A needed to achieve 29W speeds on the 12.9" iPad Pro or 10.5” iPad Pro
https://forums.macrumors.com/threads/87w-usb-c-charger-doesnt-charge-12-9-ipad-pro-29w.2015416/
I was disagreeing that the iPad Pro could be fast charged with anything other than a 29 watt charger.
The following has been confirmed by Apple regarding the new iPhones. Therefore Sir you were correct and I apologise... They do support USB-PD.
They pointed me to some small text on the bottom of the iPhone 8 specification page...
“Testing conducted by Apple in August 2017 using preproduction iPhone 8 and iPhone 8 Plus units and software and accessory Apple USB-C Power Adapters (29W Model A1540, 61W Model A1718, 87W Model A1719). Fast-charge testing conducted with drained iPhone units. Charge time varies with environmental factors; actual results will vary.”
https://www.amazon.com/dp/B073J7MPBT?tag=cnet-vig-news-20
1) I tried the Amazon basics and multiple cables. Only the Apple cable will work for high speed charging. I bought an open box off of ebay and it works perfectly.
2) I tried the Anker charger, with the USB-PD and 4 regular ports. On the Anker site, it says that you should use the regular ports to charge an IPAD. I put a USB-C power meter, and the Anker charges the IPAD at 5V 1A, so 5W, slower than molasses. Took hours to charge the device. I have not tried the Anker 30W USB-C charger, but suspect it works because it's likely 15V 2A which would be the fastest speed.
3) I tried the Apple 29W USB-C power adapter. It charges the IPAD at 14.5V, 2A, so 29W. This works great.
4) I tried the Apple 87W USB-C power adapter. It charges the IPAD at 9V, 2A, so 18W. That's only marginally faster than the included 12W power adapter. I think it's pretty disingenuous for Apple to claim that this adapter quick charges the IPAD when it's not the fastest charing solution.
So, my conclusions.
* I don't know what's special about the Apple cable, but I haven't found another one that works.
* It looks like the IPAD gen1 accepts up to 2A (except 5V where it accepts 2.4A). It will use 5V, 9V, or 14.5V. The 87W Apple adapter supports 20V 4.3A, 9V 3A, and 5V 2.4A. The problem seems to be that it doesn't support 14.5V, so it charges slower.
I don't have an iPhone 8 yet, but it's on the way, and I'll test and post here what I find with that. I also don't have Gen2 IPAD Pro models to test either, with no plans to buy one.