Shared publicly  - 
 
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 .
345
57
Cecil Mathew's profile photoLee Herron's profile photoJason Reipold's profile photopatel lav's profile photo
173 comments
 
Thanks for research is the cable suitable for the one plus 2?
 
The one plus 2 doesn't do fast charging so there is less risk, but you should still not have these cables around in case you get a newer fast charge capable tablet phone or laptop.
 
so i have a Nexus 6P and a moto quick charger. The 6P displays "charging rapidly" under that setup. I'm gonna stop using them and use the others I've bought that are compliant. Shame, it's a slick cable, I've contacted one plus to ask about options... haven't heard back yet. 
 
+Garrett Keating you definitely don't want to put your Moto Turbo Charger at risk, since that's an expensive charger. 
 
I'm using the same cable with my 6P and there's nothing wrong with it.
 
Oh, and thanks for calling this out! hopefully they replace em or something. 
 
The title is misleading. These cables are perfectly fine unless you use them with a 5X or 6P...
 
+Benson Leung​​ has the type c spec actually been finalized yet? do we have these types of issues because manufacturers don't yet know what's right?
 
Baaaah this sucks, I already bought one and have been using it.
 
+Estuardo Zenteno Any USB Type-A car charger you may have from your old phone will work, as long as you use a safe compliant USB A-C cable.
 
So are you saying that I shouldn't use the Oneplus 2 cable on my Oneplus 2 phone? (sorry just need a clarification)
 
+giL jones gamis ii The OnePlus 2 phone doesn't fast charge anyway, so it's not likely going to cause damage like if you had a Pixel or Nexus device.

However, it's still not cool to keep that cable around because the next phone or tablet or laptop computer you buy might support 3A fast charging, and if you forget that cable is bad, you may damage a charger sometime in the future.

If you want to keep the cable, mark it with a tag so you don't forget it's special.
Varo
 
F%#$@... I bought 2 like 3 weeks ago. Oh well I guess we're out to buy new ones again.
#Belkin and #iOrange it is then
Varo
 
+Benson Leung
Which wall charger adapter would you recommend? And sorry if this was mentioned or asked!
 
I hate that I've read everything you've reviewed +Benson Leung​ ... Means I've spent £15 on a Belkin USB cable 😂 ;)
I just wanted to thank you though, I was using a cablematters cable before! :O
 
It looks like it may also physically destroy the USB A port by breaking the pin inside. Usually, USB A plugs have a frame around it which stabilizes them inside the port, with this cable I think there's a lot of stress applied on the pin inside the port.
 
+Dinyar Rabady Yes, definitely. But this also means, that it is safe to use the OnePlus2 cable with the OnePlus2 with every charger... I think.
 
+Piszok Alfréd​ yes, but uf i unterstand +Benson Leung ​correctly the danger is that you could use the same cable in the future with a phone that does quick charging and a laptop and would then possibly damage the laptop..
 
Much appreciated for the information. OPO owner here. Thx Benson..
 
+Benson Leung​ will I get quick charging if I use an Orange brand type A to type C cable with a Samsung quick charger?
 
Anyone with a one plus want my cable?
 
+Łukasz Byjoś Without even buying it I'm sure they have the resistors set wrong.  They are advertising the cable as 3A which should never be the case for a USB A-C cable.  Just flat out never.
 
+Łukasz Byjoś So far, that's been the case.  As far as I can tell iOrange, Belkin, Anker, Google and Apple are the main sources of good cables.  I just tested VCE, F-Color and one other generic company and they all have turned out bad.  VCE was incorrect resistors and the other two were no pull up resistors.

As for the app, I can't say.  I don't regularly install very many 3rd party apps onto my devices so I'm not about to try.  The only really reliable way I can say to checking is using an ohmmeter and some very tiny probes (what I do to verify the findings from the phone with ADB.)
 
Is it only the ONEPLUS cables and adapters
 
Dang. All the cables I have that didn't come with my 6P are either OnePlus or Orzly. How likely and severe is the damage that these would cause? Is it only that in will damage the charging block, or will it possibly damage the phone? 
 
+Benson Leung How can a simple adapter like this be "out of spec" ? does it have a resistor?
 
I just got 7 of these in the mail :( ... What about type c to type c cables are those all good?
 
+Flow 239 Legary Type-A to Type-C adapters or cables must identify itself to the Type-C device as a legacy charging path using a 56kOhm pull-up resistor on the CC line. When the Type-C device (phone, tablet, or laptop) sees that resistor, it tells it to use pre-Type-C current limits in order to safely charge from any Type-A port.

However, these bad cables use the resistor pullup that is only appropriate when you have a pure 3A Type-C fast charging path, for example, a C-to-C cable to a 3A fast charger like the one that comes with Nexus 6P.

By changing one little resistor, the cable manufacturer tricks the phone into thinking it's plugged into the OEM fast charger while it's really plugged into any USB Type-A port that may have been made since 1997.
 
+Benson Leung, according to the explanation I got from +Garrett Keating, it seems the device on the non-phone side of the cable, that is, either the wall charger or the PC USB port will be damaged, but not the phone, right? I'm asking coz I bought a Oneplus cable with powerbank. I wouldn't mind too much if the powerbank should get damaged. The powerbank comes with a USB type A cable and I'm going to use a USB type A to C adapter (also Oneplus's) to use it with my 6p. Will this damage my phone? I'm not worried about damaging the powerbank, just the phone. What should I do?
 
We ordered these and One+ won't take them back now that we've seen this review.
Tony Ho
 
+Fida Mehran​, +Benson Leung​ Hi. I second his question. What is the worst that can happen if I use this cable to charge my 6P using a powerbank? 
 
+Tony Ho The worst is the device can burst into flames in your pocket.  You will overcurrent the power pack, which can do a few things.  If the device is a higher-end one and has overcurrent protection, it'll probably cut off in some way.  If it's a cheap one it may just not work by dropping out of regulation when the current draw is too high or it may draw too much current from the device.  If it draws too much current you have the possibility of damaging the power pack or fire depending on how the device is constructed.
Tony Ho
 
+Mike Crawford​​ wow! Thanks a lot for the very detailed explanation. Mine is a XiaoMi power bank that comes with a Texas Instruments chip. I guess to be on the safe side I should not use it. A pity I paid a pretty penny for it thinking it's good stuff. 
 
+Tony Ho Hi, looks like we're on the same boat, brother. Feeling sorry for my Oneplus powerbank purchase. Now it will not do much other than just powering my other regular micro-USB devices. Any additional thoughts on this, +Benson Leung brother?
 
+Taylor Ducote It can range and it's hard to say, but with how many poorly constructed USB power devices are out there, starting a fire from drawing too much current is not out of the question.  

The real effect of what'll happen from drawing too much current from one of these chargers varies from charger to charger, all depending on topology, build quality, protection circuits (if any, most USB chargers, especially cheap ones won't have any protection at all).

One very likely thing that can happen is oscillation.  This will happen when the current is increased to 3A the charger then falls out of regulation and the voltage drops to almost zero.  After it goes down in voltage the current then goes down as well since the phone isn't seeing it as a charger.  The voltage then can go back up to the full 5V and the phone will start charging again, which starts everything over again.  Sometimes this will be visible to the user, you'll see the phone just start and stop charging repeatedly, sometimes it'll happen so fast you can't see it.  If it's happening that fast, damage somewhere along the way is sure to occur.  

Another very likely thing is some sort of damage to the switching FET or output coil on the charger.  If the charger is able to hold regulation through too much current, it'll then be running things at more than their rated current, which means more heat and a significantly shorter lifespan.  Eventually something will break when under the stresses of overrating; there's a very good chance that if it seems to work, you'll be in this category.  Something will eventually fail from being pushed beyond its rating.

Then there's catastrophic failure, and this is a real possibility with some chargers.  There's enough absolute garbage out there that can burst into flames if you look at it wrong, and this does not help that situation.  Any $1 special charger that you get from Alibaba or Amazon is pretty much guaranteed to be something that's of such low quality that I as an EE wouldn't want it within 100 meters of my devices, or me when it's plugged in.  Ken Shirriff has done some analysis a few years back on a $1 special, http://www.righto.com/2012/03/inside-cheap-phone-charger-and-why-you.html , and that's one of the better ones I've seen.  Drawing too much current from one of those, if it's able to put it out, will start a fire.

Anyway, it's  just not a good idea to draw too much current from these devices.  It's bad news bears and you can be in for either shorter lifespans or worse.
 
+Tony Ho Having a name-brand power pack is in the right direction, they probably have output protection, but I can't say for certain without really picking apart the insides.
 
Hi +Mike Crawford and +Benson Leung , one other question popped in my mind. Say, I have this Oneplus powerbank. And I use the cable provided in the Nexus 6p box and connect the phone to the Oneplus powerbank. Do you think that's okay? As long as I avoid the 'Oneplus USB to Micro USB' cable or 'Oneplus USB A to C adapter'? This should help +Tony Ho as well, and also not make our spent money a total waste, by being able to use the OnePlus powerbank at least, if not the cables/adapters.
 
+Fida Mehran It's probably okay.  I don't think it'll be unsafe if you use a known-good cable at the very least.  Also, the Oneplus USB-A to micro USB cable may be okay (unless you meant the USB-C to micro USB adapter, avoid all those like the plague for now).  The reason I say may is I've found so many cables to use thin 28 AWG wire, which for a 2m cable will have a voltage drop of 2 volts when run at 1 Amp.

Besides that, I worry that they may not set the voltages for the current ability of the pack right; but that would be a gross misstep on their part making it incompatible with literally everything else.
 
Cool then. So basically I should just not use the adapter (C to micro). And I'll have to use the A to micro USB cable for non-6p devices.... :)
 
Saw this too late. Bought four of these cables... 😭
 
Shame, I've got 3 as well. Guess I'll see if OPO is willing to give me a refund or has any intent to fix and replace cables. Still, thanks so much for all your hard work +Benson Leung. Better to know and be disappointed than not know and keep risking device damage. :)
 
+Josh Sleeper I'm guessing that OPO will say that the cables work fine for OPO phones and, therefore, won't refund/replace.  I've tried to raise a returns ticket on the OPO site, but I don't see able to do that.  

That'll teach me. At least all I've lost is a few bucks rather than being left with a fried phone/hub/PC/whatever. 
 
+Benson Leung  I tested Xiaomi USB Type-C cable on my own computer by using 'adb shell dmesg | grep 'Avail curr from USB'' cmd. I can see Avail curr from USB = 500. Does this mean I can trust it? BTW, it seems Xiaomi USB Type-C cable is a 3.1 USB-A to USB-C cable.
Varo
 
+Benson Leung​​
A little lost here...
I thought the new USB Type-C cable was supposed to be 3.1 Why is Google selling 2.0 Type-C cables? And is it possible to know what are the amp's, cause it is not described at the Google Store. Very little info. with these cables on the site.
 
OK, I have a 5X and three of these cable and I'm using them every day. Really, how bad is it? In layman's terms? I'm a C# dev but know nothing of USB as I have nothing to do with it so as far as I'm aware, it should be OK. What exactly is it I'm missing and exactly what are the odds I'll kill my 5X in some way? I've already invested money in these and don't want to keep them if they're bad or buy any more.
 
Wondering how you can damage a charger with that?

If a charger can deliver only 2A and advertises through the cable to offer 3A, then it will still deliver only 2A. How can you damage a charger or a port with that. Please explain.

Yes, I am only a poor Electrical Engineer with some skills in hardware design.
Varo
 
+Kishor Sapkota
You need a cable that supports 3A, this one is 1.5A
Wouldn't recommend it and I'm sure he won't either mate
 
+Benson Leung​ I bought two USB AC cables from Chinese companies named Xiaomi and UGreen separately. Could I know how do you think those for my 6P? Thanks a lot
 
Hey Benson, cool work. I was thinking of building a small circuit board that had a male and female USB-C connector that could be placed in line of bad cables to protect your device. Do you think this would be possible? It could either check and limit the currect, and/or modify the identifier resistance of the board. I love making open source things and it would just be a simple project.
 
I just had to return 4 USB C cables to Amazon because of this VERY same problem. Luckily, I have some USB C board connectors because I have been looking at updated some of my products to use USB C. 
 
+Simon Paturel or the chromebook pixel.... aka three of the four readily available type c devices on the market. Also any type c device released in the future as they will all certainly support fast charging.
 
Well this is depressing. I bought & and was really happy with them so far but I guess I can't use then now :(
 
+Thilo Schumann It's all about what these USB chargers do that allows you to be able to draw more than the rated current.

Chargers are constant voltage regulators, meaning they do whatever they can to keep the voltage at the specified level (in this case 5 Volts).  The reason this is important is as you take more current from an unregulated source the voltage will dip, making circuits unstable, so we add regulation to maintain that voltage despite the current.  So, as you try to take more current from the charger, it'll provide it and it'll maintain the same voltage.  But, one thing we're looking at here is that all electronics will have maximum power ratings, and individual max current and max voltage ratings.  Exceeding those can lead to devices to heat up unsafely, thermal runaway (where increasing the heat allows more current to flow, which then increases the heat, allowing more current to flow... you get the drift), device damage, shorter device lifetimes and even catastrophic failure.

This is the main reason why power supplies have fuses and other over current protection, they can mostly have more current drawn from them than can be safely pulled.  But, the problem is, most USB chargers don't have any over current protection.  No fuses, no active OCP, pretty much nothing.  These devices are all built so cheaply, every little thing that's not intended to be used for regulating the voltage is omitted.  Even most of the top brands have very little output protection on them.  All of them depend on the device being charged will keep itself in line with spec, which has been the case up until now.

Not all chargers, though, will keep regulation through high currents.  Sometimes the regulator will oscillate, fall out of regulation, or fail in some other way.  This happens the most with the cheapest of the cheap chargers.
 
+Louis Nguyen No, there are no USB-A chargers that are rated for 3A.  If there are, they are out of spec, running too high of a current for A-type cables, and are potentially dangerous when the wrong mix of cables and devices are used.

In the case of that charger you linked, it is going to be 2A for one port and 1A for the other; it states this in the description.  You may be able to pull that kind of current safely, you may not.  It's a crapshoot, to be honest; one that I personally would not take.  Power electronics is not something to take lightly (yes, even 5V @ 1A is power electronics), and it's not a good idea to mess around with them by using them outside of their rated specifications.
 
+Thilo Schumann I too was once a EE... I believe it will cause a brown out condition on the charger side, since the phone is trying to draw 3 amps and the charger may only be able to provide 2 amps.  This is all because the cable is advertising incorrectly that it can provide 3 amps.
 
+Lynden Savage There's a risk to your old standard speed chargers because your Nexus phone or Pixel device will treat it as a fast charger and try to pull too much current.
 
I've just bought 2 of these and they are already in the mail, wish I had seen this earlier, I avoided Anker cables because of the possibility that it was not official, never expected oneplus to be a knock off whilst anker cables are proper, really disappointed in oneplus, would you say the cable is safe to use with the oneplus 2 or should i be considering changing the cable? 
 
Whoa, thanks for warning me to not use the oneplus cable for non oneplus devices. But now I gotta go back to using a Playstation controller for my Wii. 
 
What is the expected output of the Google store bought Type-A to Type-C cable? 
 
+Daniel Chee The Google store Type-A to Type-C cable is 100% guaranteed to have the correct CC termination. That cable was developed in conjunction with the development of the Chromebook Pixel, so we would have caught any defect in the cable very early on.
 
but for oneplus mobile phones there are just ok, right?
 
I have been using a couple of these cables for the last couple of weeks when my 5X. No apparent problems (yet).
 
If I don't care about the AC adapter itself, any danger to the phone in using the OnePlus cable with a 6P? 
 
Thank you very much for doing these reviews. I previously owned a OnePlus 2 but I sold it to buy the Nexus 6p. I did use the OnePlus USB type C adapter a few times but thanks to your reviews I won't be using that anymore. Do you have any suggestions on good car adapters to use for the Nexus 6p? I've been looking for a good one to buy, however I am uncertain what will work with my phone without damaging it. Thanks again for all of the reviews!
 
Mobilesyrup pointed out that these cables were a cheap way of getting a USB type C cable so I picked one up before the phone was delivered. I have used it for data transfer, not for charging. Well that's highly annoying. 
 
+Benson Leung  thanks for all your hard work with testing all of these products to see if they work with Google USB-C devices. I was wondering if google actually plans to make or certify a USB-C car charger for the Nexus 5X/6P anytime soon? until then we have limited options and non that really work....why did google leave this out of there initial offerings? Please check out my Video which tests different Chargers and cables with the new Nexus phones and let me know what you think! https://www.youtube.com/watch?v=FDXhXvO70Uk
 
Good job! Recommend choetech new type c port adapter and type c-c cable, perfectly compatible with Nexus 5x and Nexus 6p.
 
Thank you for doing all the reviews calling out these poor quality cable makers.  It's the same with 3rd party lighting cables.
Have you tried Monoprice usb c 3.1 cables and adapters?http://www.monoprice.com/pages/usb_31_type_c 

I ask because as I went through a half dozen lightning cable orders on amazon they all failed.  Then I bought a few on moonprice and they've lasted as long as any of my apple brand cables.  Might be a good inexpensive source for usb 3.1
 
Le câble ORZLY Charge N Go est il bon pour le nexus 5 merci ?
Translate
 
+Benson Leung The thing I have not seen addressed anywhere is this: What happens if you hook this up to your computer (desktop or laptop) and connect your phone? My understanding is that computers have overvolt protection on the USB ports and my own testing with ampere indicates that I have not been able to pull more than 900mA from the front panel USB ports.


Basically, is there a danger to using this cable to charge from a laptop/desktop?
 
+Ezra Mandel From what i have read the max USB-A can handle is 2.4A. In my testing the max i have seen is right at 2A being pulled over USB-A
 
+Joey Riz That's what I though. I phoned Google Store and they had no clue there was a risk. There should be a warning against using it with chargers that can output >2.4A.
 
+Ezra Mandel That's not actually how it works though. If you find a proprietary Type-A charger that can source 3A, your phone will not be damaged by it as long as you use a compliant cable.

The google A-to-C cable, for example, uses the correct 56kOhm resistor, so the phone will understand that it needs to negotiate for higher than 500mA using a protocol like BC1.2.

More than likely, your phone will only negotiate up to 1.5A.

The google cables are all compliant, so there's no risk of the phone doing anything dangerous.
 
+Ezra Mandel That adapter is a host port adapter, meaning it turns your phone into a USB Host and a charging source not a charging sink.

It's mainly used so you can plug in a USB storage device or a USB input device, not to charge your phone.
 
+Benson Leung +Ezra Mandel   Sorry for my poor wording on that. I never ment it was unsafe to use the cable, just that it out output or the phone would "pull" no more than 2.4A over a USB-A cable.
 
Great information. So I got my nexus5x few weeks ago and just got cheap 3bucks typeC to typeA cable from china via ebay. Is there any clue that i can test this cable if its stable for my new nexus?
 
+Benson Leung  is it OK if I use my original Galaxy Nexus charger and cable with One Plus USB Type C adapter to charge Nexus 6P?  
 
+Sabah Razavi I don't recommend using the Oneplus adapter like that. You risk damaging that old charger. 
 
The idea that non compliant cables are being sold by tier b hardware providers is extremely concerning to me. I have bought a One Plus cable based on the Mobilesyrup.com recommendation to do so back in early September, it would be nice if One Plus recalled these, but I suppose they're compliant with One Plus phones. What it means for me though is that I'm going to make as much noise as I can that One Plus isn't following standards.
 
+Benson Leung​​ saw your review of the tronsmart car charger for the pixel but have you tested/reviewed for the 5X and 6P? Seems to work (have two) but don't want to use if there are issues. Both phones say charging rapidly in the car with this product. Thanks! USB Type-C Car Charger,Tronsmart 36W 2 Ports Rapid Car Charger with Quick Charge 2.0 Technology.Attached USB Type C Cord for Nexus 6P, Nexus 5X (Not Compatible with Google Pixel) https://www.amazon.com/dp/B0146FK3G0/ref=cm_sw_r_em_awd_K8htwb4XVNV8X
 
Kingston Digital 64GB Data Traveler Micro Duo USB 3C Flash Drive (DTDUO3C/64GB)  .   I wanna purchase this otg drive... Can u help me with the details whether this will work with one plus two and moreover will there be any risk to one plus two phone? and the cable provided by one plus company for one plus two mobile is safe for the phone?
 
This post seems a little misleading or confusing at the least. what makes it non-compliant? if the cable is used with say, a nexus 6p charger, then it should be perfectly safe for the phone as well as the charger correct? Please explain further, thanks!
 
+Alex Wong The noncompliance is as follows:
These USB cables violate section 4.11.1 of the USB Type-C Specification. They do so by using an identification resistor value of 10kΩ instead of the correct value of 56kΩ for "Default USB Power"

By doing so, the cable fools the device into thinking that the device can pull 3A of current even though the Type-A charger, hub, or PC USB port cannot handle it.

Note : You actually CANNOT directly use this cable with the default Nexus 6P charger because the Nexus 6P charger is a real 3A charger with ONLY a USB Type-C port on it.

These cables go from Type-A to Type-C.
 
+Benson Leung​ thanks. Yes I noticed that as soon as I posted. Makes sense. 56k, the old standard is now the new standard! 
 
Hi +Benson Leung, sorry for poking you once again.
I have a question. I have a number of Adapters with USB-A female ports, one of which is the DC 5V, 2A Nexus 10 charger adapter. Is it okay if I use the Nexus 6p USB-C to A data cable with that charger adapter? Or other old charger adapters for that matter? I ordered one i-Orange USB C to A cable as an additional cable to my new 6p cable, so that I can keep one at the office and one at home.
 
+Benson Leung​ Thanks a lot, brother. It's crystal clear now. Already planning to order all cable and adapter and charger options from Google for my 6p!!!!
Can't thank you enough for the tremendous work you've done...
 
+Benson Leung Is the 10k / 56k resistor accessible from the Type A plug?... I would imagine it would be simple enough to measure  if so.   Is there a diagram anywhere which would allow me to understand where the resistor should be?
 
+James Lewis That's correct. You need to check the presence and value of the resistor between Vbus and CC. The CC pin does NOT exist on the Type-A connector, so you'll have to measure it on the Type-C side.
 
+Benson Leung Excellent, ironically I'm now looking for "bad" cables... as I have a number of 5v sources capable of 5-10 amps, and I intend to replace the Type A connectors on some cables with my own high power connectors.
 
+Tate Noster Sorry for the delay, but to answer your question, it is NOT safe to use these cables with your laptop or desktop computer that is limited to 500mA or 900mA of output.

The phone, tablet, or laptop with Type-C may simply skip the part of the negotiation process that determines the 500mA or 900mA limit if it sees the 3A resistor.
 
Hi Leung, are cables USB 2.0 A to type c safe to use? I heard 2.0 can not do faster then 2.4 A anyhow?
 
+Arthur Sychov​, you can check Benson's Amazon reviews (link in one of the comments above) for compliant cables and safely use one of them, irrespective of how much Amps they're pulling.
I forgot my school physics already, but I believe it's rather the device that's pulling charge and the port that's giving charge are the ones who're either 2.0 or 3.0. So doesn't matter whether the cable is 2.0 or 3.0. The cable matters when it needs to pull power. Less resistance of 10kOhms should mean it'll prolly accidentally pull more power than it should. 56kOhms should mean that it'll pull lesser and safer amount of power.
I maybe wrong. Just my two cents.
 
+James Lewis​, 56 kOhms = good, 10 kOhms = bad. Far as I have understood. The comments above will give you clearer idea.
 
+Arthur Sychov The answer to the first question is "not always", and yes you are correct that the very best USB 2 chargers are able to supply 2.4 amps.

The issue is that cables include a resistor which encodes how much current the device is permitted to draw.  The issue +Benson Leung is highlighting is that many cables including the oneplus one encode 3 amps....    if the device you are charging is capable of drawing more than your USB 2 charger can deliver then your charger may be damaged... 
 
+Fida Mehran I'm providing the info, rather than questioning... and yes, 10k encodes 3 amps, so under most circumstances thats bad....
 
+James Lewis​, my bad, bro. Since most of the people here are like, hey Benson, I've bought this cable and it says 10 kOhms.... Is it okay? :)
My bad bro. My bad.
Steve M
 
this really seems like a flaw with the spec.  So a client-side device can trick it's host into pushing more power than is acceptable?
 
+Steve M No. The host never "pushes" power in any power situation. It's always up to the device sinking power to regulate how much current is being drawn.
Steve M
 
I thought the problem is with pushing too much power down a cable path.  If that is the case it seems like the cable should have the required circuitry to prevent this to begin with.
 
+Steve M No your understanding is incomplete. The problem is that the newer phones are capable of drawing 50% or 100% more current than was previously possible with USB cables and power sources previously.

When the newer Type-C phones recognize they are being plugged into a legacy source through a legacy host adapter cable, they are supposed to limit themselves to pre Type-C current levels to be safe.

Power supplies do not push current. They simply supply. It is up to the device being charged to limit its charging to a safe level by negotiating with the power source.

The cables that cheat trick the phone into thinking the phone is plugged into a 3A source and they start drawing 3A even though they may only be guaranteed to supply .5A or 1A or 2A. What will happen next will depend on the quality of the charger.

This could cause serious problems for some chargers or computer USB ports.
Steve M
 
Thank you very much, I believe I get it now.  I really appreciate this.
 
+Steve M Essentially the fault is with the cable, which is telling the device being charged that it is allowed to pull 3A, when there is no intelligence in the cable to determine how much power is really available.
 
Already got the product.  I just won't use this in any charger that I care about.
 
I'm plugging into my Dell M6800 Mobile Workstation. +Tate Noster 
 +Benson Leung , not following as to why there is a risk to frying my USB laptop port given that it is throttled.
 
It turns out that the cables may damage ... also themselves. 
 
I love this cable... No problems here. If you need someone to give yours to, I'm happy to accept the donation.
 
+Dave Rodecker Please read my FAQ about why this product is unsafe to use : https://plus.google.com/+BensonLeung/posts/HakwCMmd346

The short answer is that your PC or laptop USB port is designed to output probably 500mA or 900mA. If you are lucky, and your laptop has special circuitry, it may support up to 1.5A output using something called BC 1.2 CDP protocol.

However, no PC USB Type-A port is designed to output 3.0A. When you plug in your phone in with a cable that has the bad 3.0A identifier resistor, the phone will attempt to draw more than the 500, 900, or 1500mA levels that your laptop's port may support. Really bad stuff could happen.

There's nothing that "throttles" in this case. The phone thinks its plugged into a fast charger because the cable lies to it.

There are documented cases where people's laptops have been seriously damaged by one of these cables. Dieter Bohn at The Verge damaged his MacBook Air's Type-A port using one of these bad cables and his Nexus 6P, so this is not a theoretical problem : http://www.theverge.com/2016/2/4/10916264/usb-c-russian-roulette-power-cords
 
+Michael Rewaj I don't have a OnePlus 2, but the A-to-C cable that Google makes is a good cable, and as long as the OnePlus 2 follows the Type-C spec, it should work well in that combination.
Paul C
+
1
2
1
 
+Benson Leung Apologies on dragging up this old thread, but wondered what your thoughts were on OnePlus completely trashing A-to-C cable and charging specs with their new proprietary Dash Charging cables and chargers (5V/4A over A-to-C cable)?
 
+Paul C My concern would be that most A-to-C cables are not rated for > 3.0 A. By pushing 20W over the cable, it could potentially cause the cable to melt.

Perhaps OnePlus's new cables are designed for that, but it would give me pause since the user may use any A-to-C cable, including ones from other manufacturers that are only rated for 3A.
 
So basically don't use the Dash Charger itself with any other A-to-C cable, and don't use OP's Dash Charging cable with any other device besides OnePlus devices. And do you still not advise to use the new Dash Charging cables with standard 5V/1A chargers? Or with Chromebook Pixel or Nexus devices?
 
+Jason Reipold
if you still have your oneplus cable jason&you are serious il have it off you as just lost job &money is very tight.thanks in advance lee herron 34 bowes court blyth england ne241eh
 
so which cable i should buy in india?
please suggest
Add a comment...