Related
Hi there,
some might know it some might not..
the Datakacabels can only charge the HTC Desire with 500mA (this will result in a Navigation System that DRAIN the Accu DOWN while charging...)
therefor you need the Special Vehicel Cable+Caradapter from HTC the cabel has some settings changed so it can actualy work as a AC adapter with 1000mA
can someone explain how to build your own AC cable with a Usal cable?
sorry for my bad english thou...
found the answer myself http://www.abload.de/image.php?img=usb_male_plug_type_a42xe.jpg connect both together or use Isolating tape on both
It should be the charger NOT the cable that has the data pins shorted. If you use a modified cable on a computer it will draw more than the 500 mA and you risk causing damage as this is out of specification for a USB port.
daverave999 said:
It should be the charger NOT the cable that has the data pins shorted. If you use a modified cable on a computer it will draw more than the 500 mA and you risk causing damage as this is out of specification for a USB port.
Click to expand...
Click to collapse
If USB tries to draw more than 500 mA then the USB standard has an overload protect so the PC should shut the USB port down (and present a notification via Windows) so you should not be able to overload but trust me, having to reset the USB port is a pain so best avoided anyway.
I'm curious as to how a device can draw more current than is being supplied to it? This isn't how it worked last I looked.
alias_neo said:
I'm curious as to how a device can draw more current than is being supplied to it? This isn't how it worked last I looked.
Click to expand...
Click to collapse
Good point. Perhaps the port is capable of supplying more? Maybe the power is supplied across multiple ports so if only one port is in use, more can be drawn?
But non the less, overload protection is there and functions.
I'm curious as to how a device can draw more current than is being supplied to it? This isn't how it worked last I looked.
Click to expand...
Click to collapse
Good point. Perhaps the port is capable of supplying more? Maybe the power is supplied across multiple ports so if only one port is in use, more can be drawn?
But non the less, overload protection is there and functions.
Click to expand...
Click to collapse
Most hubs or headers should be capable of supplying more. The 500mA limit is a specification of the standard and that is only in desktops and like. Less is possible as most of us have experienced. It wouldn't be too difficult to make a usb charger capable of 1A.
Iv searched high and low however for a ready made one from a third party. Unless its made by one of the big phone makers or similar you'll probably not find one and I settled for a 700mA one.
That said, charging slower is of course better for your battery.
EDIT: also, as mentioned, you would modify the charger not the cable. If the charger has no data pins it can't cause a problem. For PC charging you could make a fork cable.
-------------------------------------
Alias::NeO on HTC Desire
I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Probably you need a modified Kernel like Nexus 7
avalpert said:
I recently got a Nexus 5 to replace my old Nexus S and really like it. I am having one challenge that I was hoping for help on:
I have got OTG working with stickmount fine, but I am trying to use this Y-cable to charge while using it and I can't get the phone to charge from the cable at all (with or without a USB drive connected). I have been able to get other, non-Nexus's to charge from the cable so it isn't the cable that is the problem.
I am rooted but running a stock kernel and rom - any ideas why it might not be working or if there is a custom kernel that has enabled the capability otherwise disabled in the phone?
Click to expand...
Click to collapse
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
I'm interested in this too
wicpp said:
You need a modified Kernel something like the following Kernel. But at the moment it is only available for Nexus 7.
http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
Click to expand...
Click to collapse
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Otg + Charging is also very useful when you are playing games using GamePad
t1.8matt said:
I had OTG charging on my Galaxy Nexus as well as the N7. I just tried it too on my N5 with Elemental X kernel, no go. That's odd no one has come out with this feature yet if that's the case as I'm sure it's very sought after especially with people who have the 16gb model like myself that hook up to external hard drives to save space on the phone but they need external power.
Click to expand...
Click to collapse
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
wicpp said:
If you are using a USB Connection Game Pad via OTG, graphics heavy games use too much battery and usually you can not play for long. This also increases the importance of such kernel for Nexus 5 as well. Nexus 5 have smaller battery but it can play decent Graphics.
I do not like Game Pads with Bluetooth connectivity as they have control latency or lag and your moves are not as quick as even the touch screen, where as you use Game Pads to improve your control moves and probably make them better than touch screen.
Click to expand...
Click to collapse
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
I think Nexus 5 USB Port is 5 Pin
t1.8matt said:
The PS sixaxis controller worked great on my N7 for a while, no lag in gameplay. Until Asus had to fix it then I could never get it to work properly again.
Click to expand...
Click to collapse
I think that Nexus 5 USB Port is 5 Pin and not 11 pin like Galaxy S4 or Galaxy S3. Can someone please confirm this?
If this is the case will be still be able to Charger Phone and do OTG concurrently or simultaneously ?
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Can we use QI Wireless Charging along OTG
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I am not sure but can we use QI Wireless charging along OTG. I have read somewhere that it charges but there is a bug in Kernel due to which it does not know that battery is being charged there is no animation or text to show that battery is being charged. Another concern is that if OS does not know about charging and battery is being charged is it not dangerous can it not overcharge and below the battery etc.?
Alex240188 said:
Battery goes up about 1% every 10-15 minutes.
Click to expand...
Click to collapse
I use exactly the same Y-cable from amazon as avalpert. I connect my USB 2.5" harddisk first at the Nexus charger and let it spin up. Then i connect the OTG cable to my Nexus 5 (rooted stock ROM & stock kernel). The battery icon in the status bar has no charging animation but in settings it says its charging. Around 1% in 5-10min. Even if the screen is on.
@ avalpert: U could check the current of your usb drive in the manufacturer's datasheet and subtract this from the current, your charger is able to provide. My Nexus 5 charger can output max. 1.2A at 5V. Maybe you're using another model and there is just little current left to charge as Alex remarked.
But the difference is I was only powering a flash drive which uses next to no power. And still only 1% every 10-15 minutes.
My best guess is that because otg is enabled. The kernel is not able to tell what type of charging type (ac or USB) is connected so it just enables trickle charge as not to cause any problems
Sent from my Nexus 5 using xda app-developers app
Alex240188 said:
Yes but I believe it's something that has to be addressed at the kernel level.
I use a powered USB hub and even though the phone doesn't show any charging animations, going into the battery info screen shows it is charging (though it doesn't say usb or ac, just charging)
from what I have seen it's even less than trickle charge.
USB flash drive mounted.
Screen off
Battery goes up about 1% every 10-15 minutes.
So clearly current is being passed from the hub to the phone. Just not a lot
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Used Voltage and Current Rating details of Power Supply?
dirkzelf said:
I can confirm this, I use a powered 7 port USB 2.0 hub, and with the original PS: no charging.
Now I took another PS that puts out 2.14-1.7A @ 6-7.5 VDC, and hey presto, charging the phone!
No indicator in the status bar (top screen), but when checking the battery status it clearly states "CHARGING" (see picture OPLADEN 95%)!!
And it charges pretty fast too.....
The mouse is working, as wel as the USB stick is recognized and working!!
The ONLY worry is about the charge....... is 6-7.5 V a battery killer? :fingers-crossed:
Anyone?
Click to expand...
Click to collapse
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
wicpp said:
Can you please show the power supply that you are using in the picture? What is the exact voltage you are using 6V or 75.V? And exact current 21.4A or 1.7A?
Click to expand...
Click to collapse
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Can you tell the result of using 5V 2A Power Supply.
dirkzelf said:
I found the rating strange myself as wel, but it is exactly as I mentioned, but since I didn't trust it up ahead, I just went to my basement to see if I had something better, and I found a 5V 2A.
That should be OK, right?
Click to expand...
Click to collapse
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
Click to expand...
Click to collapse
Here are the pictures of the PS specs. Hope it clears your question? Pls let me know.
it may be interesting to read this forum / info on 2A charging of the nexus 5...... :
http://forums.androidcentral.com/google-nexus-5/331746-2a-charger-nexus-5-a.html
wicpp said:
Yes 5V 2A seems write but I still can not give you any guarantee it might blow your device so do it at your own risk
If you can do this, then please tell how the charging speed is going along OTG use on 5V 2A?
Click to expand...
Click to collapse
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
May be we can use fix Voltage and AMP output adapter
dirkzelf said:
Alright, from 84% tot 97% in 90 minutes.....
That is connected with micro usb otg cable to powered (5vdc 2a) USB hub and with the screen on.
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
May be we can use fixed output voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins, at least we are guaranteed that, at least full power is coming out of the adapter at all times.
wicpp said:
May be we can use fixed voltage and amp adapter just like the following
http://www.amazon.co.uk/2000mah-Ada...ds=5V+2A+2000ma+AC+Power+Adapter+Wall+Charger
I know it is up to the device (Nexus 5) that how much load it will put on the adapter to consumer out of 2000ma or 2A. On the other hand I have read somewhere that even most 2000mA USB Chargers just give 500mA in the beginning and due to some data pins activity they start generating 2000mA. If this is the case then Nexus 5 will force only 500mA or so from the charger that it is not compatible with. If we use some adapter that generates constant 5V 2000mA irrelevant of communication on data pins like the ones with 3.5mm pin which does not have any data pins at least we are guaranteed that at least full power is coming out of the adapter at all times.
Click to expand...
Click to collapse
I am given to understand that it has nothing to do with the "intelligence" of the charger, but with basic electrical principles.
That would imlpicate that if a device requires 500 mA, the charger will supply 500 mA, if the device would require 3000mA, then it would supply 2000 mA, being it's maximum current (flow).
As far as I know, a powersource ONLY generates a flow (Amps) up to it's maximum limit, if it is connected to a consumer (device). No connected device / consumer leaves no flow to be generated.
Please correct me if I'm wrong.
Added to my little test earlier today: The phone didn't get hot, at most it would be slightly less cool..... for the PS the same.
Which one of these cables support fast charging for the 6P?
I do not want to get new adapters so hopefully one of these cables are good enough
Thanks
1 - http://www.amazon.com/Yoozon®-Hi-sp...45399787&sr=8-3&keywords=usb+type+c+to+type+a
2 - http://www.amazon.com/Multi-Colour-...45399787&sr=8-4&keywords=usb+type+c+to+type+a
3 - http://www.amazon.com/iOrange-E-Bra...45399787&sr=8-7&keywords=usb+type+c+to+type+a
This one mentions this, Support the Maximum 2.4A fast charging and the speed of data sync up to 480 Mbps however I thought it needs to be 3A to support fast charging, if someone could please clarify, thanks
4 - http://www.amazon.com/NewLobo-1-met...45399787&sr=8-6&keywords=usb+type+c+to+type+a
5 - http://www.amazon.com/Cable-Matters...45399787&sr=8-8&keywords=usb+type+c+to+type+a
6 - http://www.amazon.com/JOTO-Standard...5399787&sr=8-11&keywords=usb+type+c+to+type+a
None of them will. You might get close to 2 amps if you are lucky, but no Type-A port will support Type-C fast charging. While cable quality matters, its more dependant on the load the phone can draw from the charger.
See: http://forum.xda-developers.com/showpost.php?p=63220997&postcount=1
Continuing off what Elnrik said, you can still go ahead and buy yourself some generic quality USB A to USB C cables (see one plus cables for quality and value). You'll get pretty standard old charge rates through them but they are better than nothing in a pinch, for the time being, unless you want to replace all your old adapters.
I know you said Amazon, but Google sells an a to c cable capable of 5v/3a
https://store.google.com/product/usb_type_c_to_usb_standard_a_plug_cable
Currently out of stock though
Sent from my SM-G900V using Tapatalk
I am trying to find one as well that will do 3A/5W. So far I have found this one that according to the description will do it.
http://www.amazon.com/Rankie®-Hi-sp...29503&sr=1-1-spons&keywords=usb-c+cable&psc=1
heleos said:
I know you said Amazon, but Google sells an a to c cable capable of 5v/3a
https://store.google.com/product/usb_type_c_to_usb_standard_a_plug_cable
Click to expand...
Click to collapse
I really don't know what Google are playing at with the spec for that cable. There's no way in the world a USB Type-A 2.0 cable can deliver 3A. You absolutely need Type-C end to end to achieve that.
If I'm wrong, I'm gonna look like a right chump. But I haven't been ravenously soaking up info on this topic for nothing!
krazyq said:
Which one of these cables support fast charging for the 6P?
I do not want to get new adapters so hopefully one of these cables are good enough
Thanks
1 - http://www.amazon.com/Yoozon®-Hi-sp...45399787&sr=8-3&keywords=usb+type+c+to+type+a
2 - http://www.amazon.com/Multi-Colour-...45399787&sr=8-4&keywords=usb+type+c+to+type+a
3 - http://www.amazon.com/iOrange-E-Bra...45399787&sr=8-7&keywords=usb+type+c+to+type+a
This one mentions this, Support the Maximum 2.4A fast charging and the speed of data sync up to 480 Mbps however I thought it needs to be 3A to support fast charging, if someone could please clarify, thanks
4 - http://www.amazon.com/NewLobo-1-met...45399787&sr=8-6&keywords=usb+type+c+to+type+a
5 - http://www.amazon.com/Cable-Matters...45399787&sr=8-8&keywords=usb+type+c+to+type+a
6 - http://www.amazon.com/JOTO-Standard...5399787&sr=8-11&keywords=usb+type+c+to+type+a
Click to expand...
Click to collapse
With the Nexus 6P, none of them. It is not the cable, but the 6P that is the culprit. All those cables will actually support 5V/3A. For some bizarre reason, Google designed the charging system in the 6P around the Type C spec (the spec for a connector) and not around the USB Power Delivery Spec, but then used the configuration channel in USB Type C which eliminates the possibility of using Type A to Type C for putting 5V/3A into the 6P. Even Apple respects USB Power Delivery in the MacBook Pro.
I think Google's mistake (or at least foolish decision) will become apparent next year when the next Nexus phones (and a lot of other laptops, tablets and phones) have Type C, but not 5V/3A and instead support more standard power like 5V/2A and 12V/1.5A. There is a reason Qualcom chose those 2 combinations for Quick Charge 2.0. They didn't pull them out of their butt like Google.
To me, not having the device in my hands, is the biggest single disappointment with the phone. Don't get me wrong, even 5V/1.5A is decent power for charging a phone. Guess the other disappointment also centers around the implementation of Type C and not allowing HDMI via the Type C connector which it was expressly designed to do.
dwswager said:
With the Nexus 6P, none of them. It is not the cable, but the 6P that is the culprit. All those cables will actually support 5V/3A. For some bizarre reason, Google designed the charging system in the 6P around the Type C spec (the spec for a connector) and not around the USB Power Delivery Spec, but then used the configuration channel in USB Type C which eliminates the possibility of using Type A to Type C for putting 5V/3A into the 6P. Even Apple respects USB Power Delivery in the MacBook Pro.
I think Google's mistake (or at least foolish decision) will become apparent next year when the next Nexus phones (and a lot of other laptops, tablets and phones) have Type C, but not 5V/3A and instead support more standard power like 5V/2A and 12V/1.5A. There is a reason Qualcom chose those 2 combinations for Quick Charge 2.0. They didn't pull them out of their butt like Google.
To me, not having the device in my hands, is the biggest single disappointment with the phone. Don't get me wrong, even 5V/1.5A is decent power for charging a phone. Guess the other disappointment also centers around the implementation of Type C and not allowing HDMI via the Type C connector which it was expressly designed to do.
Click to expand...
Click to collapse
Wow super lame...
So I'm going to have to buy new type adapters
(wall and car charger) and new type c to c cables?
I have the Moto X Pure right and the only reason I'm getting the 6P is cos of the battery and camera which I'm hoping to be better.
Snarklife said:
I really don't know what Google are playing at with the spec for that cable. There's no way in the world a USB Type-A 2.0 cable can deliver 3A. You absolutely need Type-C end to end to achieve that.
If I'm wrong, I'm gonna look like a right chump. But I haven't been ravenously soaking up info on this topic for nothing!
Click to expand...
Click to collapse
I would tend to agree with you, and the other people that have researched the actual USB spec, but I feel like it's this was an error, they would realize it quickly and change it. The hire some smaht people at Google
Sent from my SM-G900V using Tapatalk
Snarklife said:
I really don't know what Google are playing at with the spec for that cable. There's no way in the world a USB Type-A 2.0 cable can deliver 3A. You absolutely need Type-C end to end to achieve that.
If I'm wrong, I'm gonna look like a right chump. But I haven't been ravenously soaking up info on this topic for nothing!
Click to expand...
Click to collapse
Don't confuse the cable's capability to handle 3A with what the SPEC allows. A Type A to Type C cable can actually handle 3A. Both connectors can do it. Even a Micro B can do 3A. The Spec does not support it. And here is the big issue. The spec, both original and the newer ones including USB-PD are set up for simultaneous power and data. For a charger, we are only worried with power and data speed/corruption is not an issue.
USB PD allows 60W (20V/3A) through micro B and100W (20V/5A) through standard A and B. It requires specially 'marked' cables which will be a little beefier than standard 2.0 cables. But the connectors can handle it.
So what is the solution?
Get new car and wall chargers only usb type c cables?
Okay, this is interesting. So, if the cable and both the A and C connectors can both handle 5/3, could you plug this cable into a block that pushes out 5/3 via a female A port and achieve maximum charge velocity?
That goes against what so many have said - that you need C to C - but I'd be delighted to hear it.
EDIT: Just saw @dwswager's post. What he said.
-------
TLDR:
USB TYPE-A has standards not specs, limitations are grounded in physics not words and it is possible for a USB type A to deliver 3A with lower Ohms at 5v with the right power adapter/hub.
USB 2.0 refers to Data rates not charge rates.
Bonus: 3A 5V is one of the Quick Charge Class A power standards for C to C even if 6P isnt yet certified for it. Could be Google pushing for an A to C 3A to 5V Quick Charge USB Class?
Snarklife said:
I really don't know what Google are playing at with the spec for that cable. There's no way in the world a USB Type-A 2.0 cable can deliver 3A. You absolutely need Type-C end to end to achieve that.
If I'm wrong, I'm gonna look like a right chump. But I haven't been ravenously soaking up info on this topic for nothing!
Click to expand...
Click to collapse
heleos said:
I would tend to agree with you, and the other people that have researched the actual USB spec, but I feel like it's this was an error, they would realize it quickly and change it. The hire some smaht people at Google
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
I think the conversation over USB "specs" has been misconstrued. What people are looking at are USB standards. Standards are not limits. They are heavily optimized guidelines for creating compatibility and uniformity with as many devices as possible and to protect as many devices as possible from accidental burnout.
USB 2.0 Data rate does not prevent a USB A port from having a 3.1 or similar charging configuration.
As is already clear, Google is not following USB charging standards of any kind with the 6P and noted by @dwswager.
It is entirely possibly to throw 3a INTO a USB A standard cable; ampere limitation isnt the problem USB 3.1 standards for USB A do it perfectly fine but at 3a 12v(4ohm), which is a higher ohm set up than with 3a 5v(1.67ohm). We also know that USB 3.1 standards allow for 2a 5v (2.5ohm), which is even closer to the 3a 5v set up. .The standards are set at those points because the lower the ohms the great the heat created, think of it like a welder, or a sub-ohm vaporizer.
Note that the size of the USB 3.1 pin size don't change due to the change in ohms. What is likely changing is the conducting material and size of the transmission wire.
Most 2a 5v cables run cool because the cable is a 2.5ohm resistance cable and its getting fed precisely 2a, as very carefully designed, which then makes that cable a "5v" (2.5ohm x 2a) cable. A 3a 5v cable would hence need to have a lower resistance of 1.67ohm, which is higher conduction, likely from a more optimized conduit throughout.
The cable can exist under Huawei/ Google's unique of standard setup.
Thing is, nobody as part of the USB standards have ever said you CANNOT put 3a through a USB Type A, but also nobody outside of chinese ebay sales sell anything with USB A that puts out 3a at 5v right now (Google for it, they exist. Wouldn't recommend buying one).
Bonus from Google CS (Source: http://www.droid-life.com/2015/10/19/nexus-6p-nexus-5x-quick-charge/#comment-2315607310):
"Currently, the Nexus 6P isn't listed on Qualcomm's list of devices
that have been tested and certified to be compatible with Qualcomm Quick Charge
2.0 chargers, so I can't say with 100% certainty yet. This is something that can
change the longer the Nexus 6P is out on the market and is tested for
compatibility and interoperability."
---------- Post added at 03:03 PM ---------- Previous post was at 02:42 PM ----------
Snarklife said:
Okay, this is interesting. So, if the cable and both the A and C connectors can both handle 5/3, could you plug this cable into a block that pushes out 5/3 via a female A port and achieve maximum charge velocity?
That goes against what so many have said - that you need C to C - but I'd be delighted to hear it.
Click to expand...
Click to collapse
Turns out electrical engineering and understanding takes more than misconstruing USB standards as specs.
theTqM said:
Turns out electrical engineering and understanding takes more than misconstruing USB standards as specs.
Click to expand...
Click to collapse
I have been fighting this corner since the day of the announcement, I am glad to hear someone else say it. There is absolutely nothing about USB Type-C that has any effect on wall chargers and the amount of current it can draw, and equally nothing stopping Type-A from providing aforementioned current / voltage. What it needs its a cable that can handle it (like the offical Google one), and a wall charger that will provide it, simple as that.
vido.ardes said:
I have been fighting this corner since the day of the announcement, I am glad to hear someone else say it. There is absolutely nothing about USB Type-C that has any effect on wall chargers and the amount of current it can draw, and equally nothing stopping Type-A from providing aforementioned current / voltage. What it needs its a cable that can handle it (like the offical Google one), and a wall charger that will provide it, simple as that.
Click to expand...
Click to collapse
Thank God! Realism
If under USB-PD Profile 5, Type A can handle 20V/5A, why people think it can't handle 5V/3A is a mystery. The question has been will the phone accept it with an undetectable (to the Type C device) Type A to Type C cable by the 6P. The answer appears to be yes it can.
dwswager said:
Thank God! Realism
If under USB-PD Profile 5, Type A can handle 20V/5A, why people think it can't handle 5V/3A is a mystery. The question has been will the phone accept it with an undetectable (to the Type C device) Type A to Type C cable by the 6P. The answer appears to be yes it can.
Click to expand...
Click to collapse
I've bought the cable I linked to from Google (it has already turned up) and I have bought a car charger that claims to output 3A/5V so I will be testing as soon as my device turns up. The car charger wasn't cheap, but it has been rebranded a lot so it's 50/50 as to whether or not it will hold up to it's claim. It has a type-C port as well so I can at least check they output the same.
@vido.ardes @dwswager. If what I quoted earlier from G CS is correct and the Nexus 6P hopefully-perhaps-maybe gets certified by Qualcomm for Quick Charge, and google updates the kernel to enable it then we'll have the entire world of Qualcomm certified 3A Quick Chargers at our disposal. Its a hope.
theTqM said:
@vido.ardes @dwswager. If what I quoted earlier from G CS is correct and the Nexus 6P hopefully-perhaps-maybe gets certified by Qualcomm for Quick Charge, and google updates the kernel to enable it then we'll have the entire world of Qualcomm certified 3A Quick Chargers at our disposal. Its a hope.
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Click to collapse
Not sure how it would get certified. QC 2.0 takes an extra chip in the device and the 810 SOC is not QC3.0 certified.
dwswager said:
Not sure how it would get certified. QC 2.0 takes an extra chip in the device and the 810 SOC is not QC3.0 certified.
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Click to collapse
You're right regarding QC 3.0.. however:
Check out the 5x teardown.. it has a QC 2.0 quick charge chip: http://9to5google.com/2015/10/22/nexus-5x-teardown-repairability/
Chances that the 6P has the same.. high...
theTqM said:
You're right regarding QC 3.0.. however:
Check out the 5x teardown.. it has a QC 2.0 quick charge chip: http://9to5google.com/2015/10/22/nexus-5x-teardown-repairability/
Chances that the 6P has the same.. high...
Click to expand...
Click to collapse
That's interesting!
All this charging crap could have been avoided if Google would have just spent 30 seconds explaining it. I suspect that they used Type C and designed the circuit to take 3A and wanted to call that fast charging without having to actually implement a fast charging solution.
If I had the 6P in my hands I would get a few chargers:
Google Captive (5V/3A)
A Type C 5V/3A
A Type A 5V/3A (or the ASUS Transformer charger with micro B and a micro B to C adapter.
A 5V/1A charger.
Then with phone less than 10% charged plug them in and check the current draw. All of them should be somewhere close to the Nominal rated current output.
Then with the phone above 90% charged, plug them up again and they all should be drawing about the same current because the current draw should be well below the rated current of all the chargers.
Benson Leung is doing a great service by identifying to users whether various Legacy to Type C adapters and cables use the appropriate pullup resistor. Unfortunately, most people have misread his statements and even worse, drawn erroneous conclusions. Benson Leung Amazon Profile (Reviews)
What the Leung Reviews Actually Tell Us:
Whether the reviewed product uses the correct pullup resistor base on Type C specifications or not.
For whatever reason, the Google Chromebook Pixel (2015) will not charge with a cable that has the wrong pullup resistor.
The Google Chromebook Pixel (2015) might attempt to draw 3A at startup and depending on the port it is drawing from, it might burn the attached port.
What They Tell Us w/ Respect to the Nexus 6p:
Absolutely nothing
While we can infer that the Nexus 6P will believe that the attached facing port can deliver up to 3A, the review gives us no indication about how the attached devices (6P on the C end or the port device on the legacy) will react. We know the 6P behaves better with these cables than the Pixel. Link for a post and video link for getting 3A from an Anker Type A charger.
How to use this information:
If you desire a cable or adapter that adheres to the Type c specification, buy the ones Mr. Leung reviews favorably and avoid the ones he reviews unfavorably.
If you desire the possibility of getting more than 2.4A from a legacy charger, buy the cables that Mr. Leung tells you have the wrong pullup resistor. This includes having a single charger to charge your Nexus 6P and other phones and devices that need less than 3A all with Type A cables. It has been confirmed that you can get 3A safely to the 6P using these cables with Type A chargers. We hope manufactures will provide 5V/3A capacity, if not rated, chargers.
Recommendations for using these “Out of Spec” devices:
Mark them. While it is ignorant to shun these cables because you don’t understand the potential benefits they can provide, it is also ignorant to use them unknowingly. Also, if you have an issue, it makes it easier to determine if the cable is the problem.
Test your specific devices with the cables before deploying them for use.
Is it Safe to use these Cables to get 3A from a Charger through a legacy port charger?
First, a charger has a rated capacity, say 2.4A and a higher actual capacity. What that means is that the manufacturer certifies the device to supply enough power for a device that needs no more than 2.4A Because of sample to sample variation, the device must be designed to supply more than 2.4A so that those at the bottom of the sample will still meet that 2.4A requirement. For example, my device might need to be designed to output 2.7A so that I have a 99% confidence that any single randomly selected charger will be able to produce 2.4A. Hence, a device rated at 2.4A, outputting more than that is not unsafe. It is normal and expected It is only unsafe when the device exceeds it actual capacity leading to thermal shutdown.
A USB charger does not blithely output full rated current continuously. It is also important to understand that the attached device (the sink) controls the draw. This is why you can safely use the same charger to charge a 900mA device, a 1.5A device and 3A device. Battery charger does not require a full power!! The 6P will draw up to 3A, but does not require 3A
We know that these cables advertise 3A to the Type C port. That is, the device believes can draw up to 3A. The Nexus 6P seems to behave well when 3A is unavailable. It appears to work as it is supposed to by monitoring vRd on the buss and moderates it’s current draw to maintain the reference voltage. This is how it precludes overdriving a charger without the charger having to trip it’s own over current protection.
I have little need to connect my 6P to my computer and so I don’t use these cables connected to computer USB ports. I have the cable in my car and the 2 adapters in our other vehicles where I know there is a Type A to Micro B cable always available. Since the only at risk component is the $10 charger, if I ever have an issue, I really don’t care. However, to date, these have worked fine everywhere I’ve tried them.
Thanks! Very informative. I was wondering how his reviews affect usage with the Nexus 6P, and was starting to sway towards waiting for a spec-compliant adapter to come out. But now I think I'll just go for it...
Hi there!
Thanks for making this thread! This has been a hotly debated topic in numerous other threads, and has probably deserved it's own for quite a while now. I don't think it is a secret that @dwswager and I have had a slight disagreement from time to time concerning this. I'm not here to flame or derail the post, but hopefully provide a different perspective in hopes of furthering the discussion and understanding.
dwswager said:
How to use this information:
If you desire a cable or adapter that adheres to the Type c specification, buy the ones Mr. Leung reviews favorably and avoid the ones he reviews unfavorably.
If you desire the possibility of getting more than 2.4A from a legacy charger, buy the cables that Mr. Leung tells you have the wrong pullup resistor. This includes having a single charger to charge your Nexus 6P and other phones and devices that need less than 3A all with Type A cables. It has been confirmed that you can get 3A safely to the 6P using these cables with Type A chargers. We hope manufactures will provide 5V/3A capacity, if not rated, chargers.
Click to expand...
Click to collapse
This is great advice. If you don't want to take the risk, please buy in-spec cables. Intentionally using the out of specification cables is akin to hacking and tweaking an OS. I'm not against doing so - we wouldn't have custom roms without it - but, you should know the risks and be willing to accept them. With that said, it is my belief that current non-compliant cables should be removed from the market altogether. Unless the product is correctly labeled as such and specifically sold and marketed as non-compliant hardware, consumers don't really know what they are buying. Allowing manufacturers to sell these USB cables, and having users believe they are within specifications when they aren't, shouldn't be allowed.
Regardless, I would consider intentionally using out of spec cables in an attempt to gain further charging benefits to be "charging hacking". The goal, as stated, is to push the hardware beyond it's rated capabilities and/or to exceed documented specifications. As long as you know that is what you are trying to do, go for it! It's like flashing a rom to your phone - If you brick your charger, void your warranty, or get your charger stuck in a boot loop, it's your own fault. hehehe.
dwswager said:
Is it Safe to use these Cables to get 3A from a Charger through a legacy port charger?
First, a charger has a rated capacity, say 2.4A and a higher actual capacity. What that means is that the manufacturer certifies the device to supply enough power for a device that needs no more than 2.4A Because of sample to sample variation, the device must be designed to supply more than 2.4A so that those at the bottom of the sample will still meet that 2.4A requirement. For example, my device might need to be designed to output 2.7A so that I have a 99% confidence that any single randomly selected charger will be able to produce 2.4A. Hence, a device rated at 2.4A, outputting more than that is not unsafe. It is normal and expected It is only unsafe when the device exceeds it actual capacity leading to thermal shutdown.
Click to expand...
Click to collapse
This is an area I would be concerned about. As there is no way to know how much over the charger's rating you can safely go, I would advise caution. Also, it is entirely possible that the "higher actual capacity" is a safety buffer the manufacturer didn't intend for daily use.
dwswager said:
A USB charger doesn't blithely output full rated current continuously. It is also important to understand that the attached device (the sink) controls the draw. This is why you can safely use the same charger to charge a 900mA device, a 1.5A device and 3A device. Battery charger does not require a full power!! The 6P will draw up to 3A, but does not require 3A
We know that these cables advertise 3A to the Type C port. That is, the device believes can draw up to 3A. The Nexus 6P seems to behave well when 3A is unavailable. It appears to work as it is supposed to by monitoring vRd on the buss and moderates it’s current draw to maintain the reference voltage. This is how it precludes overdriving a charger without the charger having to trip it’s own over current protection.
Click to expand...
Click to collapse
I'm not entirely sure how proven this is as there are some examples online demonstrating the 6P pulling about 50% more current from an Anker charger than it is rated to provide. Again, I would advise caution.
dwswager said:
I have little need to connect my 6P to my computer and so I don’t use these cables connected to computer USB ports. I have the cable in my car and the 2 adapters in our other vehicles where I know there is a Type A to Micro B cable always available. Since the only at risk component is the $10 charger, if I ever have an issue, I really don’t care. However, to date, these have worked fine everywhere I’ve tried them.
Click to expand...
Click to collapse
Yes, probably best not to do this on an expensive laptop or PC. :good:
quitlee said:
Thanks! Very informative. I was wondering how his reviews affect usage with the Nexus 6P, and was starting to sway towards waiting for a spec-compliant adapter to come out. But now I think I'll just go for it...
Click to expand...
Click to collapse
if it is just a cheap car adapter that is one thing, but i would not want any cables like that near a computer. even if i know better than to plug it in i still may or someone else may.
What They Tell Us w/ Respect to the Nexus 6p: Absolutely nothing
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Do NOT buy this #USB #TypeC to Type-A cable from +OnePlus.
It is not spec compliant (uses a 3A identifier resistor instead of the "Default USB Power" one), and may cause damage to your charger, hub, or PC USB port if you use it with #ChromebookPixel or #nexus6p #Nexus5x .
Click to expand...
Click to collapse
https://plus.google.com/+BensonLeung/posts/JmcU4rA1csh
zeitgeb3r said:
What They Tell Us w/ Respect to the Nexus 6p: Absolutely nothing
Do NOT buy this #USB #TypeC to Type-A cable from +OnePlus.
It is not spec compliant (uses a 3A identifier resistor instead of the "Default USB Power" one), and may cause damage to your charger, hub, or PC USB port if you use it with #ChromebookPixel or #nexus6p #Nexus5x .
https://plus.google.com/+BensonLeung/posts/JmcU4rA1csh
Click to expand...
Click to collapse
I've used one many times and it hasn't fried my charger or phone.
Regardless, I would consider intentionally using out of spec cables in an attempt to gain further charging benefits to be "charging hacking". The goal, as stated, is to push the hardware beyond it's rated capabilities and/or to exceed documented specifications. As long as you know that is what you are trying to do, go for it! It's like flashing a rom to your phone - If you brick your charger, void your warranty, or get your charger stuck in a boot loop, it's your own fault. hehehe.
Click to expand...
Click to collapse
While I agree with this, I'm a lot more worried about someone who unknowingly or unintentionally (or stupidly) starts using those cables all over the places because "Damn it, Martha, that there cable worked just fine in the past", and plugs into a variety of ports not designed for the current, such as, but not limited to: notebook USB ports, PC USB ports, portable lion battery ports, airport charger ports, airline seat ports, the USB port in your Mom's car, your buddy's $1 USB charger that he got at WalMart and what have you. Yeah, it'll mostly work, but when it doesn't.... You could also replace all the 20A fuses in your house with 40A fuses and that would mostly work. Until it doesn't.
I just don't see the point. Buying spec compliant cables is no big deal. Buying a C->C fast charger is no big deal. What's the upside here? Save a few bucks? If that?
DebauchedSloth said:
Regardless, I would consider intentionally using out of spec cables in an attempt to gain further charging benefits to be "charging hacking". The goal, as stated, is to push the hardware beyond it's rated capabilities and/or to exceed documented specifications. As long as you know that is what you are trying to do, go for it! It's like flashing a rom to your phone - If you brick your charger, void your warranty, or get your charger stuck in a boot loop, it's your own fault. hehehe.
While I agree with this, I'm a lot more worried about someone who unknowingly or unintentionally (or stupidly) starts using those cables all over the places because "Damn it, Martha, that there cable worked just fine in the past", and plugs into a variety of ports not designed for the current, such as, but not limited to: notebook USB ports, PC USB ports, portable lion battery ports, airport charger ports, airline seat ports, the USB port in your Mom's car, your buddy's $1 USB charger that he got at WalMart and what have you. Yeah, it'll mostly work, but when it doesn't.... You could also replace all the 20A fuses in your house with 40A fuses and that would mostly work. Until it doesn't.
I just don't see the point. Buying spec compliant cables is no big deal. Buying a C->C fast charger is no big deal. What's the upside here? Save a few bucks? If that?
Click to expand...
Click to collapse
No the upside is that inspec cables are harder to come by than out of spec ones. I bought the OP ones before we knew if they were in spec. I have the iorange one which is in spec as well but i don't want to waste the money i spent on the OP cables since i have 4 plus their adapter. I have Nexus Protect so i don't care if my phone magically dies since that's why i bought an extended warranty for it. I also own the Google 22.5W charger and i will gladly get more C-C cables but that doesn't help my charge my phone in the car
I have been using my old quick charge wall adapters with OnePlus cables for over a month now and I haven't had a single issue. They all charge at their rated rate, or under (my moto turbo charger tops out at 1300mah even though it can go much higher). Ive asked Benson already: what about the wall adapters? No reply. Oh, and USB Type C wall adapters are even harder to find then these cables, and who knows if those are "in spec." I already spent nearly $40 in OnePlus cables, im not about to buy $50 more in "in spec cables" to then find out that some google guy is now saying "dont use xxx wall adapters." I think if this really was a FIRE risk, google itself would be issuing a statement not just some guy who works there at some capacity. As far as i know, the device will be fine, and with my 1 year warranty i doubt anyone is going to run into a DEVICE issue. I think this is blowing up way out of proportion. My Samsung non fast charging wall adapter chargers at a max of 2.1a, and its rated for 2a. That 100 isnt going to do squat and i wouldnt be surprised if that was within the power rating anyway. My quick charge 2.0 aukey chargers also charge at that speed with the oneplus cables. Again, no issue. I think at this point ill risk the potential of damaging a $5 wall adapter due to a cable being "out of spec" than spending $12-19 a cable (times 5 as id want 2 in my cars and 3 at home) and then worrying about the wall adapters going with it possibly spending even more to replace those. Oh, and then you have to worry about the in car charging on top of those. I get what he's saying, and I don't disbelieve him, I just don't think its as big of an issue as people are making this out to be. Ill update my opinion if something happens, but im doubting it.
Don't buy these cables. Period.
See this report on Reddit: https://www.reddit.com/r/Nexus/comments/3rjiol/my_nexus_5x_fried_two_car_chargers_help_please/
Worst case: burn your house, die.
I have Nexus Protect so i don't care if my phone magically dies
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Click to collapse
FWIW, it won't be your phone that dies, as far as I know. Worse case, whatever you plug it it into will die, potentially in a very bad way.
Just doesn't seem worth it.
Pilz said:
I've used one many times and it hasn't fried my charger or phone.
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Click to collapse
Murphy's Law.
All high-quality, brand name chargers feature overcurrent protection of some sort. All of them. You can stick a paper clip in them and totally short them out with no ill effect. If a charger emitted magic smoke under load it was a defective unit. They are by design "constant voltage, constant current" chargers, meaning they endeavor to supply a constant voltage until they hit their current maximum, at which point they become constant current and allow the voltage to drop to maintain the current constant.
For those who are curious about the exact behavior of various chargers under load, read all about it here:
http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html
ackattacker said:
All high-quality, brand name chargers feature overcurrent protection of some sort. All of them. You can stick a paper clip in them and totally short them out with no ill effect. If a charger emitted magic smoke under load it was a defective unit. They are by design "constant voltage, constant current" chargers, meaning they endeavor to supply a constant voltage until they hit their current maximum, at which point they become constant current and allow the voltage to drop to maintain the current constant.
For those who are curious about the exact behavior of various chargers under load, read all about it here:
http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html
Click to expand...
Click to collapse
Well said, and great article!
ackattacker said:
All high-quality, brand name chargers feature overcurrent protection of some sort. All of them. You can stick a paper clip in them and totally short them out with no ill effect. If a charger emitted magic smoke under load it was a defective unit. They are by design "constant voltage, constant current" chargers, meaning they endeavor to supply a constant voltage until they hit their current maximum, at which point they become constant current and allow the voltage to drop to maintain the current constant.
For those who are curious about the exact behavior of various chargers under load, read all about it here:
http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html
Click to expand...
Click to collapse
I have been looking everywhere for information on this topic. Everyone seems to think using a non spec cable is the end of the world but it seems it is not.
Sent from my Nexus 5X using Tapatalk
so i'd be correct to say that if i used the One Plus type A to type C cable rated for 2.4A on my 12W iPad charger rated for 2.4A output, i'd be ok?
semajm85 said:
so i'd be correct to say that if i used the One Plus type A to type C cable rated for 2.4A on my 12W iPad charger rated for 2.4A output, i'd be ok?
Click to expand...
Click to collapse
Maybe. It's not entirely risk free, but - as that article notes - it's probably OK. It's a calculated risk. That about sums up the entire issue.
Has there been any A to C adapters that have been approved? I don't think I saw any in that spreadsheet going around.
NCguy said:
Has there been any A to C adapters that have been approved? I don't think I saw any in that spreadsheet going around.
Click to expand...
Click to collapse
http://www.amazon.com/iOrange-E-Bra...?ie=UTF8&qid=1447681815&sr=8-2&keywords=USB-C
DebauchedSloth said:
http://www.amazon.com/iOrange-E-Bra...?ie=UTF8&qid=1447681815&sr=8-2&keywords=USB-C
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Click to collapse
Thanks for that. Looks like that adapter is C to A. Is there a certified A to C that I've overlooked?
I was curious, since I have quite a few USB-A Quick Charge 2.0 chargers, if there is any advantage to using a USB-C charger and cable, over a USB-A Charger with an A to C Cable?
I have compared the factory charger with several of my aftermarket QC 2.0 chargers/Cables and I get pretty much the same rate with both. Using the Ampere app I was able to get 1030 mA on both the Factory Samsung Charger/Cable and the aftermarket QC 2.0 Chargers/Cables (Anker and Aukey Brands).
Has anyone invested in a USB-C Charger/Cable that they could see if the Note 7 takes advantage of the higher Voltage/Amp of the USB-C platform?
Just wondering if it is worth it to step up the the USB-C Charger/Cable combination, since I already have quite a few QC 2.0 (USB-A) Chargers...
Just for reference I was getting ~540 mA charging rate using a couple different Standard Qi Wireless chargers. I guess the same question could be asked about the Qi Rapid Chargers, has anybody measured the charging rate with Ampere for a comparison?
You don't get fast charging with usb c to usb c. Not sure why.
kench33 said:
You don't get fast charging with usb c to usb c. Not sure why.
Click to expand...
Click to collapse
I am guessing you are referring to the International version (Exynos 8890) vs. the US Version (Snapdragon 820)? I am specifically interested in the US version since the specs do say it supports the USB 3.1 Standard, vs. the International one that only supports usb 2.0 specs. Although it is nice to know about the Int'l version as well.
excalfirst said:
I am guessing you are referring to the International version (Exynos 8890) vs. the US Version (Snapdragon 820)? I am specifically interested in the US version since the specs do say it supports the USB 3.1 Standard, vs. the International one that only supports usb 2.0 specs. Although it is nice to know about the Int'l version as well.
Click to expand...
Click to collapse
Nope I own the sd820 version on Verizon. My charger that used to fast charge my 6p does not fast charge my note 7.
i could be wrong but it seems like the note 7 charges slower than my note 4 (edge)
superg05 said:
i could be wrong but it seems like the note 7 charges slower than my note 4 (edge)
Click to expand...
Click to collapse
Note 7 does have a larger mah battery than the Note 4 edge so I'm sure that plays a factor.
aznmode said:
Note 7 does have a larger mah battery than the Note 4 edge so I'm sure that plays a factor.
Click to expand...
Click to collapse
not by much yes but the note Edge (3220mAh) is charged in a hour to hour in a half the note 7 (3,500mAh) 2-3 hrs the note 7 battery life is good as hell though but takes longer to charge like a none fast charge rate but is fast charge but it never gets hot so maybe thermal controls?
kench33 said:
Nope I own the sd820 version on Verizon. My charger that used to fast charge my 6p does not fast charge my note 7.
Click to expand...
Click to collapse
Bummer, I was hoping it would take advantage of the USB 3.1 Standards.
Thanks for the reply.
I guess listing USB 3.1 in the specs doesn't really mean much...
kench33 said:
Nope I own the sd820 version on Verizon. My charger that used to fast charge my 6p does not fast charge my note 7.
Click to expand...
Click to collapse
Bummer, I was hoping it would take advantage of the USB 3.1 Standards.
Thanks for the reply.
I guess listing USB 3.1 in the specs doesn't really mean much...
excalfirst said:
Bummer, I was hoping it would take advantage of the USB 3.1 Standards.
Thanks for the reply.
I guess listing USB 3.1 in the specs doesn't really mean much...
Click to expand...
Click to collapse
Maybe it has something to do with the charger itself? Not sure, but if anyone is willing to give this combination a try. Curious myself.
https://www.amazon.com/dp/B01IBESEB8/
And one of these
https://www.amazon.com/gp/registry/w...ref=pdp_new_wl
excalfirst said:
Bummer, I was hoping it would take advantage of the USB 3.1 Standards.
Thanks for the reply.
I guess listing USB 3.1 in the specs doesn't really mean much...
Click to expand...
Click to collapse
Something you should keep in mind is that USB 3.0 is Type-C as well. 3.1 is just a update spec for it.
If you’ve been paying attention to the world of USB, you may have heard of the announcements of USB 3.1 and USB Type-C. But what’s the difference? Which one do you need? And how are they different from USB 3.0 or even 2.0? Let’s break it down.
What is USB Type-C?
Over the years, the USB connection has taken on many forms. The rectangular port you’re most familiar is called USB Type-A. The blocky, almost square port used in many large peripherals like printers is USB Type-B. Add micro and mini versions of each of these into the fold and suddenly you’ve got a half dozen connection type and a recipe for confusion.
One thing to note, because announcements of Type-C connections have come hand in hand with USB 3.1, many people assume they’re the same, or at the very least that all Type-C runs on the 3.1 spec. This is not the case. Remember, Type-C is the connection type and may actually run on a lesser spec – USB 2.0 even – so don’t assume you’ll be getting all that 3.1 goodness just because you see that tiny reversible port.
What is USB 3.1?
USB Type-A and a USB Type C side-by-side in harmony
USB 3.1 (aka USB 3.1/gen 2) is the successor to USB 3.0. Identifiable by its bright turquois port, USB 3.1 doubles the transfer speed of 3.0 to a whopping 10 Gbps. USB Power Delivery 2.0 makes a big step forward as well with up to 100W of power. And like previous versions of USB, it is fully backwards compatible with its predecessors.
Source: http://www.velocitymicro.com/blog/usb-3-1-vs-usb-type-c-vs-usb-3-0-whats-the-difference/
According to Phone Arena it's USB Type-C Spec 3.1 Gen 1
http://www.phonearena.com/phones/Samsung-Galaxy-Note-7_id10024
DeadPhoenix said:
Something you should keep in mind is that USB 3.0 is Type-C as well. 3.1 is just a update spec for it.
If you’ve been paying attention to the world of USB, you may have heard of the announcements of USB 3.1 and USB Type-C. But what’s the difference? Which one do you need? And how are they different from USB 3.0 or even 2.0? Let’s break it down.
What is USB Type-C?
Over the years, the USB connection has taken on many forms. The rectangular port you’re most familiar is called USB Type-A. The blocky, almost square port used in many large peripherals like printers is USB Type-B. Add micro and mini versions of each of these into the fold and suddenly you’ve got a half dozen connection type and a recipe for confusion.
One thing to note, because announcements of Type-C connections have come hand in hand with USB 3.1, many people assume they’re the same, or at the very least that all Type-C runs on the 3.1 spec. This is not the case. Remember, Type-C is the connection type and may actually run on a lesser spec – USB 2.0 even – so don’t assume you’ll be getting all that 3.1 goodness just because you see that tiny reversible port.
What is USB 3.1?
USB Type-A and a USB Type C side-by-side in harmony
USB 3.1 (aka USB 3.1/gen 2) is the successor to USB 3.0. Identifiable by its bright turquois port, USB 3.1 doubles the transfer speed of 3.0 to a whopping 10 Gbps. USB Power Delivery 2.0 makes a big step forward as well with up to 100W of power. And like previous versions of USB, it is fully backwards compatible with its predecessors.
Source: http://www.velocitymicro.com/blog/usb-3-1-vs-usb-type-c-vs-usb-3-0-whats-the-difference/
According to Phone Arena it's USB Type-C Spec 3.1 Gen 1
http://www.phonearena.com/phones/Samsung-Galaxy-Note-7_id10024
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I was familiar with the excellent recap of the USB standards you posted. Thanks for posting since others may not be familiar.
So, When a vendor lists a spec such as USB 3.1 it only means it supports that specific data rate and the voltage that it charges at, is up to the vendor? I have read that the USB 3.0 and 3.1 specs are identical in the supported voltages. But I would guess that as far as supported voltages go, in the USB specs, it is totally up to the vendor as to which rates they choose to use. It just seems odd to me that you can actually charge faster with USB-A 2.0 "Rapid Charge" than with USB-C straight up.
excalfirst said:
I was familiar with the excellent recap of the USB standards you posted. Thanks for posting since others may not be familiar.
So, When a vendor lists a spec such as USB 3.1 it only means it supports that specific data rate and the voltage that it charges at, is up to the vendor? I have read that the USB 3.0 and 3.1 specs are identical in the supported voltages. But I would guess that as far as supported voltages go, in the USB specs, it is totally up to the vendor as to which rates they choose to use. It just seems odd to me that you can actually charge faster with USB-A 2.0 "Rapid Charge" than with USB-C straight up.
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I have read of 5.0v and 2.3v versions of 3.0 and 3.1. This may be a manufacturer design option. Type, power and speed specification.