Develop Bugs

Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC

Benson Leung said Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC, I wonder what kind of adapter the two phones use. I used a 5v/3a USB C charger and USB C - C cable with my Nexus 6P. Does this adapter and cable work on Google Pixel/Pixel XL?

Will it work? Sure.
Is it the optimal option? No.

Thank you @testinguser. Can't wait to get the phone.

testinguser said:
Will it work? Sure.
Is it the optimal option? No.
Click to expand...
Click to collapse
Umm... USB Type C will charge at 3A, no?
Shouldn't it be 5V/3A for the Pixel / Pixel XL also?

xz

SNH48 said:
Benson Leung said Google Pixel/Pixel XL Use USB Power Delivery up to 18W, do not support Qualcomm QC, I wonder what kind of adapter the two phones use. I used a 5v/3a USB C charger and USB C - C cable with my Nexus 6P. Does this adapter and cable work on Google Pixel/Pixel XL?
Click to expand...
Click to collapse
Absolutely, USB C is designed to negotiate with the charger how much juice is sent. the pixel works at 5V 3A (15W) and up to 9V 2A (18W), Basically if the plug fits it'll get some sort of charge. There are loads of USB C chargers with PD, the spec goes up to 100W and any charger will provide any device with the maximum it or the device can handle (So a 100W charger will give 18W to the pixel and the Pixels 18W charger will give 18W to a laptop for example)

If you have a true USB-C 5V/3A charger now, it will work fine, but as stated it is not the BEST option. 5V/3A = 15W.
If you buy a USB-PD (Power Delivery) type C charger, it has the capability to charge the Pixel at 9V/2A = 18W, so a 20% faster charge... in a perfect world, instead of 0-50% power in 30 minutes, you'd get 0-50% in 24 minutes. BUT, we don't know how long the phone will charge at 18W. Hopefully to 50%, but it has to cut down current eventually just like all QC chargers, or else it'd damage the battery.
The charger included in the box is USB-PD compliant.

Nitemare3219 said:
If you have a true USB-C 5V/3A charger now, it will work fine, but as stated it is not the BEST option. 5V/3A = 15W.
If you buy a USB-PD (Power Delivery) type C charger, it has the capability to charge the Pixel at 9V/2A = 18W, so a 20% faster charge... in a perfect world, instead of 0-50% power in 30 minutes, you'd get 0-50% in 24 minutes. BUT, we don't know how long the phone will charge at 18W. Hopefully to 50%, but it has to cut down current eventually just like all QC chargers, or else it'd damage the battery.
The charger included in the box is USB-PD compliant.
Click to expand...
Click to collapse
Great info. Now I wonder if the Tronsmart W2PTE will charge at 9V/2A...
http://www.tronsmart.com/tronsmart-w2pte-type-c-quick-charger-3.0-dual-ports-rapid-wall-charger
USB C port output:3.6V-6.5V/3.0A,6.5V-9V/2.0A,9V-12V/1.5A(MAX)
USB A port outpout:5V/2.4A(MAX)
Technically it has the ability to, but I wonder if it can.

bigblueshock said:
Great info. Now I wonder if the Tronsmart W2PTE will charge at 9V/2A...
http://www.tronsmart.com/tronsmart-w2pte-type-c-quick-charger-3.0-dual-ports-rapid-wall-charger
USB C port output:3.6V-6.5V/3.0A,6.5V-9V/2.0A,9V-12V/1.5A(MAX)
USB A port outpout:5V/2.4A(MAX)
Technically it has the ability to, but I wonder if it can.
Click to expand...
Click to collapse
My guess is no because that is relying on a QuickCharge handshake to occur between the device and charger. Pixels will use USB Power Delivery which is an entirely different specification. It'd be great if it does, but I highly doubt it.

It seems even the ones on Amazon that are PD units all are either 15w (5x3) or have the 9x2 spec but don't actually show it as addressable in handshake.
I just want to give someone my money and I am getting upset that I don't have anyone to give it to...

@bigblueshock It seems Tronsmart W2PTE not a 9v/2a PD charger, I saw Choetech has a 29w USB C PD charger
https://www.amazon.com/Charger-CHOETECH-Power-Delivery-MacBook/dp/B01HZ61WWQ/ref=sr_1_1?ie=UTF8&qid=1475906398&sr=8-1&keywords=choetech+29W+PD+charger
Specification:
Input: 100V-240V AC 50/60Hz 0.7A
Output: 5V3A/9V2A/14.5V2A
I may try this one

Great Phone, I am thinking to buy it.

uhh, QC3 supports both 5v3a and 9v2a. I use my QC3 charger with my Pixel C and it rapid charges.
The same will most likely be true for the pixel phones

I think it still doesn't work because the difference is in the protocol for handshake, not a limitation in the ranges of current.
Sent from my SM-N930V using XDA-Developers mobile app

Wouldn't it be nice if the phone could say what it was receiving and how it had negotiated? I've accumulated quite a few mains chargers, power banks and cigarette lighter adapters.
A QC2.0 PSU makes my Pixel XL say charging rapidly, but it doesn't say how rapid. Another mains charger said charging slowly, which was odd (you'd expect that from an unpowered USB hub) and others just say Charging.
How are you supposed to know what's what? The supplied PSU says Charging Rapidly, but clearly it's more rapid.
Even just putting it as an option in the developer menu would be good enough. It would then enable me to check all my various adapters and establish what does what.
Wouldn't it have been nice to just have one standard?!

jonmorris said:
Wouldn't it be nice if the phone could say what it was receiving and how it had negotiated? I've accumulated quite a few mains chargers, power banks and cigarette lighter adapters.
A QC2.0 PSU makes my Pixel XL say charging rapidly, but it doesn't say how rapid. Another mains charger said charging slowly, which was odd (you'd expect that from an unpowered USB hub) and others just say Charging.
How are you supposed to know what's what? The supplied PSU says Charging Rapidly, but clearly it's more rapid.
Even just putting it as an option in the developer menu would be good enough. It would then enable me to check all my various adapters and establish what does what.
Wouldn't it have been nice to just have one standard?!
Click to expand...
Click to collapse
There are special USB adapters that you plug between phone and charger that will tell you what it's using and what the voltage and amps are.

I'm seeing unexplainable results, like faster charging from my old Motorola Nexus 6 Turbo Charger than with the included Pixel charger....
Sent from my Pixel XL using Tapatalk

alexjzim said:
uhh, QC3 supports both 5v3a and 9v2a. I use my QC3 charger with my Pixel C and it rapid charges.
The same will most likely be true for the pixel phones
Click to expand...
Click to collapse
I can second this. Plugging it in to a QC3.0 type C charger (like the HTC 10 has) displays a "charging rapidly" notifier on the lockscreen.

robstunner said:
I can second this. Plugging it in to a QC3.0 type C charger (like the HTC 10 has) displays a "charging rapidly" notifier on the lockscreen.
Click to expand...
Click to collapse
But that doesn't actually MEAN anything. I had a bad car charger that would overheat easily over time. My Nexus 6P would say "charging rapidly" and Ampere would show 100mAh, charge completion time was over 3 hours, etc.
Google designed the phone for USB-PD, nothing else. QC 3.0 does work with this phone. Unless someone uses a USB power meter and posts solid numbers like mentioned in a previous post, people need to stop posting this ****.

Nitemare3219 said:
But that doesn't actually MEAN anything. I had a bad car charger that would overheat easily over time. My Nexus 6P would say "charging rapidly" and Ampere would show 100mAh, charge completion time was over 3 hours, etc.
Google designed the phone for USB-PD, nothing else. QC 3.0 does work with this phone. Unless someone uses a USB power meter and posts solid numbers like mentioned in a previous post, people need to stop posting this ****.
Click to expand...
Click to collapse
I'll try it tonight with ampere. I remember seeing 1100mah, which isn't much but I'll report back.
Sent from my Pixel XL using Tapatalk

Can a Quick Charge 3.0 charger be used with the Pixel 2 XL?

Hi,
I have several car chargers that use Quick Charge 3.0. Would it be safe to charge the new Pixel 2 XL with those chargers, and would it provide fast charge?
Thanks!

It will charge but not at the same rate as the stock charger 9v/2a. It will slow charger the pixel fine assuming your charger is good and you are using a good Usb-a to usb-c cable.
Quick charge is a qualcomm proprietary charging method that the pixel doesn't use. If you want fast charging I would suggest finding a usb-if certified usb-c charger that does 9v/2a. Obviously, the one on the Google store that comes with the pixel should work.
One word of caution. If you follow Benson Leung and Nathan K. on Google+, you will see there are a ton of out-of-spec usb c chargers and cables on the market. That is why I suggest that you buy one that is usb-if certified. That should offer you some level of safety (though not always, I'm looking at you belkin and your 27w car charger with power delivery)

CBMC said:
It will charge but not at the same rate as the stock charger 9v/2a. It will slow charger the pixel fine assuming your charger is good and you are using a good Usb-a to usb-c cable.
Quick charge is a qualcomm proprietary charging method that the pixel doesn't use. If you want fast charging I would suggest finding a usb-if certified usb-c charger that does 9v/2a. Obviously, the one on the Google store that comes with the pixel should work.
One word of caution. If you follow Benson Leung and Nathan K. on Google+, you will see there are a ton of out-of-spec usb c chargers and cables on the market. That is why I suggest that you buy one that is usb-if certified. That should offer you some level of safety (though not always, I'm looking at you belkin and your 27w car charger with power delivery)
Click to expand...
Click to collapse
Thank you for your detailed comment. Very helpful!

CBMC said:
It will charge but not at the same rate as the stock charger 9v/2a. It will slow charger the pixel fine assuming your charger is good and you are using a good Usb-a to usb-c cable.
Quick charge is a qualcomm proprietary charging method that the pixel doesn't use. If you want fast charging I would suggest finding a usb-if certified usb-c charger that does 9v/2a. Obviously, the one on the Google store that comes with the pixel should work.
One word of caution. If you follow Benson Leung and Nathan K. on Google+, you will see there are a ton of out-of-spec usb c chargers and cables on the market. That is why I suggest that you buy one that is usb-if certified. That should offer you some level of safety (though not always, I'm looking at you belkin and your 27w car charger with power delivery)
Click to expand...
Click to collapse
Yes, thank you for that info as well!

mcuellar said:
Hi,
I have several car chargers that use Quick Charge 3.0. Would it be safe to charge the new Pixel 2 XL with those chargers, and would it provide fast charge?
Thanks!
Click to expand...
Click to collapse
Just go for any chargers with Power delivery, it will work.

Yup. It's my understanding anything that goes from USB-A to USB-C, regardless of what kind of charger it is, will always charge at 1A or less.
Also make sure if you "have" to charge USB-A to USB-C, you don't use a "bad" cable. (see Bensen reviews)

bigblueshock said:
Yup. It's my understanding anything that goes from USB-A to USB-C, regardless of what kind of charger it is, will always charge at 1A or less.
Also make sure if you "have" to charge USB-A to USB-C, you don't use a "bad" cable. (see Bensen reviews)
Click to expand...
Click to collapse
My understanding is that you are referring to a cable that is wired for both data and charge. I have several "charge only" A to C cables that are wired different from data / charge cables. These charge my XL quite rapidly.

I believe quick charge 4.0 all also supports power delivery. But, I haven't found a 4.0 charger.
Sent from my Nexus 6 using XDA-Developers Legacy app

Here's a good article on trusted A to C cables.
https://forum.xda-developers.com/nexus-6p/accessories/verified-trusted-list-usb-to-usb-c-t3240969

mcuellar said:
Hi,
I have several car chargers that use Quick Charge 3.0. Would it be safe to charge the new Pixel 2 XL with those chargers, and would it provide fast charge?
Thanks!
Click to expand...
Click to collapse
I have been using all my Quick Charge 2 and 3 chargers and the work well.
They don't charge as fast as they did with my Nexus 6, but they are far from slow charging.
I am using these adapters on all my cables and they awesome.
USB Type C Adapter 4 Pack, JS Aluminum USB C to Micro USB Convert Connector with Keychain for Samsung Galaxy S8 New Macbook Pixel XL Nexus 5X 6P LG G5 G6 V20 Nintendo Switch and More(Grey 4 Pack) https://www.amazon.com/dp/B01LYR5F2X/ref=cm_sw_r_cp_apa_fm--zbAXX932S
Sent from my Pixel 2 XL using Tapatalk

Looking for the Quick Charge 3.0 charger for Google Pixel 2 XL ? I am just now using Choetech for my Google Pixel XL . It have an ability to Quick Charge 3.0 and USB Type-C ports. So, you can charge different phablets like Google Pixel 2 and Pixel 2 XL which are compatible with these ports.

Fast Charging using usb a -c pixel 2 xl

Has anyone managed to get a pixel 2 xl to fast charge using a normal usb a-c cable.
I have tried plugging it into a 2.4a usb wall charger and a QC2.0 charger and I can't get the device to pull any more than 1.5a
My pixel 1 used to charge fine @ 2.something A and it would say charging rapidly on the screen when charging.
Anyone got any experiences?

khizrs said:
Has anyone managed to get a pixel 2 xl to fast charge using a normal usb a-c cable.
I have tried plugging it into a 2.4a usb wall charger and a QC2.0 charger and I can't get the device to pull any more than 1.5a
My pixel 1 used to charge fine @ 2.something A and it would say charging rapidly on the screen when charging.
Anyone got any experiences?
Click to expand...
Click to collapse
Unlikely that you'll get fastcharge from a-c as the fast charge only comes from Power Delivery (this is not the same as Qualcom's Quick Charge which usually has a usb -a connection on the charger). The only chargers I've seen that implement it are usb c to usb c (no -a connections on the charger). If there are any Power Delivery chargers that have a usb -a connection at the charger, they are rare as all the ones I've seen are -c only.

That's annoying as I had no problem with my pixel 1
Annoying inconsistencies.

khizrs said:
That's annoying as I had no problem with my pixel 1
Annoying inconsistencies.
Click to expand...
Click to collapse
Yeah agreed, Pixel XL fast charged with many different cable types etc, this phone hardly charges fast charge, off my macbook old phone fast charged, PIxel 2XL nope, some battery packs I had before don't do it any more. And whats worse when not in rapid charge it is stupidly slow to charge

My ankor supposedly fast charges my phone, at least that's what my phone tells me (rapidly charging). It's one of those 5 port "iq"chargers
Sent from my Pixel 2 XL using Tapatalk

murso74 said:
My ankor supposedly fast charges my phone, at least that's what my phone tells me (rapidly charging). It's one of those 5 port "iq"chargers
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
Interesting, I have bought one of these to check.
I see no reason why this device cannot charge at 2-2.4a using a usb a-c cable.

khizrs said:
Interesting, I have bought one of these to check.
I see no reason why this device cannot charge at 2-2.4a using a usb a-c cable.
Click to expand...
Click to collapse
Ok, so I just looked at it again, and now it just says "charging"on the lock screen and I'm below 50%. Either it only works with the phone almost dead, or something changed in 8.1.
Sent from my Pixel 2 XL using Tapatalk

I have noticed that it only charges using a C - C cable. I have an Aukey USB C car charger and it charges rapidly on the USB C port on that charger, but not the USB A port on the same charger.
This charger is also a QC 3.0 charger, and nothing mentioned about Power Delivery: http://a.co/aG7adl6

My conclusion is that it HAS to be a type C charger for it to go anything above 1.5a.
Annoyingly it's worse specification that the device that it replaced.

Question re: cable for Pixel 2XL

I am LOVING my Pixel 2XL as a previous iPhone user but I am needing assistance on power cables. I am used to the usual lightning cable that is used with my previous iPhone but my Pixel 2XL came with just a USB-C cable. What cable would I need to connect the 2XL to my laptop which only has regular USB cable slots?

OU812_ said:
I am LOVING my Pixel 2XL as a previous iPhone user but I am needing assistance on power cables. I am used to the usual lightning cable that is used with my previous iPhone but my Pixel 2XL came with just a USB-C cable. What cable would I need to connect the 2XL to my laptop which only has regular USB cable slots?
Click to expand...
Click to collapse
You should be able to connect it with that cable. The end that plugs into the laptop/PC is the standard USB type; it's the end that plugs into the phone that's USB-C.

The others are incorrect. The phone comes with a usb-c to usb-c cable. What you need for your regular usb ports is usb-c to usb-a. Such as https://www.amazon.com/AmazonBasics...sb+a+cable&dpPl=1&dpID=41wgZRjwXYL&ref=plSrch
This one worked for me.

Nergal di Cuthah said:
The others are incorrect. The phone comes with a usb-c to usb-c cable. What you need for your regular usb ports is usb-c to usb-a. Such as https://www.amazon.com/AmazonBasics...sb+a+cable&dpPl=1&dpID=41wgZRjwXYL&ref=plSrch
This one worked for me.
Click to expand...
Click to collapse
Thank-you for this.
So in regards to actual quick charge: that is only capable using the plug adapter and USB C cable, correct? I will not be able to get a quick charge if I use the USB ports on my laptop...?

OU812_ said:
Thank-you for this.
So in regards to actual quick charge: that is only capable using the plug adapter and USB C cable, correct? I will not be able to get a quick charge if I use the USB ports on my laptop...?
Click to expand...
Click to collapse
Correct quick charge will only happen using a usb-c to usb-c cord (and, knowing google, the actual charger) like what came with the phone.

Nergal di Cuthah said:
Correct quick charge will only happen using a usb-c to usb-c cord (and, knowing google, the actual charger) like what came with the phone.
Click to expand...
Click to collapse
So the plug-in adapter from Google is the only one that will do a quick charge? An aftermarket one won't do it?
Sent from my Pixel 2 XL using Tapatalk

Correct, unless the aftermarket charger supports USB-C power delivery. Qualcomm quick charge is not sufficient in this case.

So for those that charge their Pixel 2XL through the usb port on a laptop - how long does it take to charge your phone?
I ask because using a USB A to USB C cable plugged into my laptop seems to take forever. I hate to say it but my iPhone charged faster. Am I doing something wrong?
Sent from my Pixel 2 XL using Tapatalk

OU812_ said:
So for those that charge their Pixel 2XL through the usb port on a laptop - how long does it take to charge your phone?
I ask because using a USB A to USB C cable plugged into my laptop seems to take forever. I hate to say it but my iPhone charged faster. Am I doing something wrong?
Click to expand...
Click to collapse
What you're doing wrong is not spending the extra funds to get a proper charger. USB ports on a PC are limited to 500mAh, thus charging will take an extremely long time. Some laptops do have a USB port designed to output a higher amperage, but they don't output the minimum of 2 amps used in smartphone chargers from the last five years.
If you don't have a proper charger, get one.

I was thinking of getting a battery pack. Is there one that has the capability of fast charging the Pixel 2xl and an iPad at the same time?
Sent from my Pixel 2 XL using Tapatalk

OU812_ said:
I was thinking of getting a battery pack. Is there one that has the capability of fast charging the Pixel 2xl and an iPad at the same time?
Click to expand...
Click to collapse
Research the Power Delivery (PD) specification. Then research PD power banks. There are many that output > 30W but it's doubtful you could charge both devices rapidly at the same time... but the PD power bank would charge either device rapidly. If you really need to charge both devices at the maximum rate simultaneously, you would be better off with a capable PD wall charger. There is also a P2XL "Accessories" section here where you will find more information on cables, chargers and power banks.

v12xke said:
If you really need to charge both devices at the maximum rate simultaneously, you would be better off with a capable PD wall charger.
Click to expand...
Click to collapse
Indeed. I'm curious as to why @OU812_ is so resistant to getting a proper charger. It's the right tool for the job.

I just like the ease of charging through the laptop at my desk.
Sent from my Pixel 2 XL using Tapatalk

OU812_ said:
I just like the ease of charging through the laptop at my desk.
Click to expand...
Click to collapse
Then use a USB-A to USB-C cable and accept the slow charging rate. Your laptop's USB power output is the limiting factor here, not the cable. You will need a PD charger (or power bank) to charge rapidly.

With USB-C still not as common as MicroUSB, are there any power banks with Power Delivery?

Strephon Alkhalikoi said:
With USB-C still not as common as MicroUSB, are there any power banks with Power Delivery?
Click to expand...
Click to collapse
Absolutely. If you are in the market be sure you confirm the powerbank allows USB-C both input & output so you can use your PD wall charger to top it off. The first generation power banks only allowed PD output, and you had to use the slower microUSB to charge. I've got my eye on THIS ONE. Just waiting for a price drop. :good:

Well I'm not in the market, but thanks for the information. I simply hadn't seen or heard of any.

Would this charger be suitable to allow quick charging?
https://www.amazon.ca/Charge-Anker-...+c+charger&dpPl=1&dpID=317lJjHWUnL&ref=plSrch
What exactly would I be looking for in a charger that would allow quick charge for the 2xl? Also, will any usb-a to usb-c cable be suitable or it also has to have certain prerequisites to allow fast charging?
Sent from my Pixel 2 XL using Tapatalk

OU812_ said:
Would this charger be suitable to allow quick charging?
https://www.amazon.ca/Charge-Anker-...+c+charger&dpPl=1&dpID=317lJjHWUnL&ref=plSrch
What exactly would I be looking for in a charger that would allow quick charge for the 2xl? Also, will any usb-a to usb-c cable be suitable or it also has to have certain prerequisites to allow fast charging?
Click to expand...
Click to collapse
Afaik only usb c to usb c will fast charge
You answered your own question earlier
OU812_ said:
Thank-you for this.
So in regards to actual quick charge: that is only capable using the plug adapter and USB C cable, correct? I will not be able to get a quick charge if I use the USB ports on my laptop...?
Click to expand...
Click to collapse

OU812_ said:
I was thinking of getting a battery pack. Is there one that has the capability of fast charging the Pixel 2xl and an iPad at the same time?
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
What iPad model do you have? Some of them support USB-PD for fast charging via USB Type C, but not all of them do. If it does support USB-PD fast charging, find a powerbank that supports it and you should have no issues. (Pixel 2 XL can use USB-PD as well)

Question Really slow car charging since A13!!!

Hi all, I'm hoping that someone much smarter here can help me. **My phone is at 50% battery while conducting these tests. I've tried 4 different usb cables and 4 different vehicles and 4 different usb car plugs (1amp, 3amp 2.5amp 30w) my P6P only charges at 800ma but fluctuates wildly from 40ma to 400ma to 250ma to 800ma. I have turned off adaptive battery and the such. no joy. I don't recall this issue with A12. I'd really prefer to not have to factory reset...but......
PS I have no issues with same cables attached to my wall charge station, which charges 5 devices @1.5amp each. My P6P shows a steady 1500ma.

You aren't fast charging unless you have a PPS or PD charger with a Type-C cable. Doesn't matter which DC port or cable you use. Your car's USB ports are not fast.
VELOGK Super Fast Type C Car Charger [73W Turbo], Metal Adaptive 55W 45W PPS/PD&QC3.0 USB C Car Adapter[Super Fast Charging 2.0]for Samsung S22/S21/S20 Ultra/Note 20/10 Plus,iPad Pro/Air,Macbook,Pixel https://a.co/d/glhc0OY

LLStarks said:
You aren't fast charging unless you have a PPS or PD charger with a Type-C cable. Doesn't matter which DC port or cable you use. Your car's USB ports are not fast.
VELOGK Super Fast Type C Car Charger [73W Turbo], Metal Adaptive 55W 45W PPS/PD&QC3.0 USB C Car Adapter[Super Fast Charging 2.0]for Samsung S22/S21/S20 Ultra/Note 20/10 Plus,iPad Pro/Air,Macbook,Pixel https://a.co/d/glhc0OY
Click to expand...
Click to collapse
I'm not talking about fast charging. I just need to get the 1.5amps I was getting before with the same setup as I was getting on A12 This is the charger I just bought hoping it would fix the sub 1amp charge rate I'm getting, Without getting 1 amp rate, my phone looses power while driving and using maps and such apps. This was not an issue with A12

Amps don't matter when you're still stuck at 5V.
It should work though. No point in buying a charger with only USB-A.

I had this issue Android 13 until Sept update even with USBC PD PPS 65W charger, phone was draining using maps. now no.
Also I do not believe that Pixel phone supports QC for quick charge so you might be lucky to get 1amp charging from USB A