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iPad Pro 29W Fast charging tests and 3rd party adapters
- Thread starter masotime
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That doesn't have to be the case. It's more about how PD is setup than how the ports are.
But to bring attention to my post from earlier, I think there is one that may actually be working, according to my tests. But it also seems to suggest the 2nd Gen Pros may support 15V unlike the first gen? Again. Would love to see if someone could confirm my findings.
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Yes. It needs to support USB-PD, which the USB A to lightning cable doesn't have the chip for.
My findings do confirm this? There's no other way it could have drawn 29W if it wasn't 14.5V. I actually have the USB-C power meter as well and I do see 14.5V / 1A when the 10.5" is close to 90% full.
I think we've confused each other here. I'm referring to a different adapter (linked in my post). And I mentioned it because it was not a charger mentioned in the thread so far, and it was reporting 15V, not 14.5V
Ah ok. I actually grabbed a similar charger,
Cable Matters 72W 4-Port USB-C Charger and will be testing it soon
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Yikes, that things blows away the Apple charger. Nice catch.
No reviews so it's new (and better be, as anything older is suspect). I'm going to grab one of these.
You need to be careful with this now. This particular one has that 'Power delivery' function, which apparently is what iPads need for this. I'm thinking it's rather likely this will work. note: Those regular USB ports are going to get some use.
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I wanted to get an adapter that had both USB-C and regular USB-A ports, which is a nicer all-in-one solution, and after looking around I found this which seemed reasonably priced and had the right specs:
Cable Matters 72W 4-Port USB-C Charger - https://www.amazon.com/dp/B01MS9CTB7/ - $27 at time of purchase
5V x 3A, 9V x 3A, 12V x 3A, 15V x 3A, 20V x 3A
It has a nice array of electrical outputs, and it looks like it could theoretically charge the 13" MacBook Pro at almost full speed. One thing to note is that it is less convenient that the other chargers I've tested, as it has a cable that connects to the adapter instead of having it built it. It's also generally much larger.
I also purchased a Plugable USB-C power meter for a better idea of the actual current and voltages. Here are the results:
tldr; They all support 29W fast charging, which is great! Interestingly as @Krevnik observed, the non-Apple chargers output 15V and are supported by both iPad Pros, whereas the Apple charger remains at 14.5V.
I've taken individual photos of each result for reference.
10.5" w/Apple
10.5" w/Anker
10.5" w/Cable Matters
12.9" w/Apple
12.9" w/Anker
12.9" w/Cable Matters
Cable Matters 72W 4-Port USB-C Charger - https://www.amazon.com/dp/B01MS9CTB7/ - $27 at time of purchase
5V x 3A, 9V x 3A, 12V x 3A, 15V x 3A, 20V x 3A
It has a nice array of electrical outputs, and it looks like it could theoretically charge the 13" MacBook Pro at almost full speed. One thing to note is that it is less convenient that the other chargers I've tested, as it has a cable that connects to the adapter instead of having it built it. It's also generally much larger.
I also purchased a Plugable USB-C power meter for a better idea of the actual current and voltages. Here are the results:
Code:
Anker Apple Cable Matters
+------+------------------+------------------+------------------+
|10.5" | 15.4V/1.83A | 14.6V/1.96A | 15.3V/1.80A |
| | 32.94W (total) | 32.58W (total) | 31.57W (total) |
| | 28.18W (to iPad) | 28.62W (to iPad) | 27.54W (to iPad) |
+------+------------------+------------------+------------------+
|12.9" | 15.4V/1.93A | 14.5V/1.93A | 15.1V/1.96A |
| | 34.13W (total) | 32.31W (total) | 32.93W (total) |
| | 29.72W (to iPad) | 27.99W (to iPad) | 29.60W (to IPad) |
+------+------------------+------------------+------------------+tldr; They all support 29W fast charging, which is great! Interestingly as @Krevnik observed, the non-Apple chargers output 15V and are supported by both iPad Pros, whereas the Apple charger remains at 14.5V.
I've taken individual photos of each result for reference.
10.5" w/Apple
10.5" w/Anker
10.5" w/Cable Matters
12.9" w/Apple
12.9" w/Anker
12.9" w/Cable Matters
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Great thread, thanks everybody.
So I'm trying to determine the rule of thumb for a potentially compatible charger. Can I conclude that it needs to be Type-C, have Power Delivery and the voltage*ampère should be around 30W in any combination? Would this powerbank work for example: https://www.ravpower.com/20100mah-external-battery-charger-QC2.0-type-c.html
I'm eager to get a solution that charges both my MacBook Pro and iPad Pro 10.5 at max speed and is reasonably portable. Perhaps it better to wait till the dust settles and the market for IPP2017 matures right?
So I'm trying to determine the rule of thumb for a potentially compatible charger. Can I conclude that it needs to be Type-C, have Power Delivery and the voltage*ampère should be around 30W in any combination? Would this powerbank work for example: https://www.ravpower.com/20100mah-external-battery-charger-QC2.0-type-c.html
I'm eager to get a solution that charges both my MacBook Pro and iPad Pro 10.5 at max speed and is reasonably portable. Perhaps it better to wait till the dust settles and the market for IPP2017 matures right?
Yeah the key indicators would be "Power Delivery", "USB-C", and you'd be looking for 9V/2-3A and ~15V/2-3A outputs.
@shyam09 something like this might possibly work - https://www.amazon.com/GearMo-Delivery-Output-Charger-Laptops/dp/B07115BLPP, although it's not really an established brand. It fulfills all the "key words" and outputs required, but I would tread cautiously - I'm not sure if it's safe for a car port to output so much power in the first place.
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The only 3rd party cables I have seen so far are non-MFI. I would not touch them with a 10 foot pole. My 10.5 is too precious.
The CableMatters adpater.. better than the Anker one we just talked about; for the 10.5 to be exact. How does the charging go once at 80%, 90% compared to the Anker one.
IMO this is the best battery pack out right now.
https://www.amazon.com/gp/aw/d/B01M...r+usb-c+pd&dpPl=1&dpID=41Pi-jS9IOL&ref=plSrch
You'd have to do some research on charging the iPad Pro though.
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I wanted to get this one, but I've already got TWO RavPower (26800/20100). Ugh. I swear, I have to stop buying stuff. lol
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I believe this is a function of the iPad Pro's power regulation circuitry more than anything - but for the record I am quite sure that above 90%, the charging switches from 14.5V / 15V to 5.2V, with current no greater than 2.4A. Basically it drops down to "trickle charging" and never exceeds 12W - this would apply to all chargers as the iPad itself is regulating the power flow to prevent damage.
The power supplied to the iPad after 90% can never exceed 12W, but unfortunately this also means that your iPad could possibly discharge after 90% even when connected to a full power 29W adapter.
Ok, thanks. I'm trying to decide if I send the Anker back to Amazon and grab the CM one.
Note that the CM one only outputs 12W total on the USB-A ports, so if you connect two devices it is limited to e.g. 6W on each.
It's still cheaper though, with potentially higher output on the USB-C port.
Heads up! The Anker 30W charger I tested is now available for $19 with the code ANKR7214
Think I'm going to grab another one. Here's the link again: https://www.amazon.com/gp/product/B06Y427WT7
Think I'm going to grab another one. Here's the link again: https://www.amazon.com/gp/product/B06Y427WT7
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Awesome. I've also hooked up to the MacBook charger for comparisons and my results agree: 15V, up to 2A on the third party chargers that support it, 14.5V, up to 2A on the MacBook charger. Glad to know I'm not seeing things.
Interesting that the Anker reading is that high on the voltage though. Even accounting for error from the meter, that's a bit high.
The main reason I got the RND is for travel. The separate cable is actually a benefit there, because you don't always get room for a wall wart in hotels and airports. Even a small one. And with the RND, I can charge the iPad, a phone, and a Kindle at the same time if I need to, or use it as a single charger for two people on a trip.
If you usually only have one item plugged in at a time, it is a bit big, yes.
EDIT: Also, this means there is something weird going on though. Since gtrusted noted that the iVoler 75W didn't charge the 1st Gen iPad Pro above 5V/2.4A. That also supports 15V @3A. If a PD chip is in the cable, then that may mean Apple did a silent update. If the iPad itself handles PD, then something is different in the 2nd Gen iPad Pro. That or the iVoler is not very compatible. It's this bit of contradiction that made me second-guess the 15V readings I was seeing with the RND.
I assume you mean this article. The problem I have with gTrusted is that they never explain how much charge the iPad Pro had when they were doing this test. It's possible they tested it when it was 90%+, which would make the iPad Pro down regulate the allowed voltage to ~5.4V.
That's also a real possibility, yes.
It's just that I hadn't seen confirmation that the iPad Pro even supported 15V on any 3rd party charger. So that threw me for a bit of a loop. I was expecting that the chargers that were working were either doing a sort of back-door 14.5V support but not listing it, or officially supported 14.5V in some way. Actually glad I'm wrong on that one.
The Anker 30w USB-c charger has a promo code for $18.99 today
https://9to5toys.com/2017/06/26/amazon-anker-sale/
Edit - didn't see OP beat me to this
https://9to5toys.com/2017/06/26/amazon-anker-sale/
Edit - didn't see OP beat me to this
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I'm not sure. Someone would need to test to verify.
The power adapter that it comes with will fast charge an iPad Pro though. The adapter is $20-$30 by itself.