Develop Bugs

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Nextbit Robin can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

Charging speed with a Quick Charge 2.0 adapter is as expected: excellent. It is in line with other phones with the same capability.

palf91 said:
Charging speed with a Quick Charge 2.0 adapter is as expected: excellent. It is in line with other phones with the same capability.
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Will Quick Charging work with my Motorola Turbo charger if I use the Robin cable on it?

jbarajasp said:
Will Quick Charging work with my Motorola Turbo charger if I use the Robin cable on it?
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I'm not sure, but I've tested it with Aukey (wall) and Anker (car) chargers, both work fine with Quick Charge 2.0 speeds.

I charged with the official charger and a Iselector Qualcomm quick charge and nothing as well. Iselector worked on both the V10 and G4. Not sure why this is not working

Nevermind. Charging fast now. False Alarm lol

I thought the charging speed was great when I wasn't paying attention, but when I did actually pay attention and time it, it took about 1 hour and 40 minutes to fully charge. So, I would check into that. Also, the Robin doesn't seem to be USB-C Power Delivery Compliant to deliver the rapid charging like the Nexus 6p and Nexus 5x does, so getting fast charging from USB-C chargers that take USB-C to USB-C cables is useless, you'll get standard speeds. So please implement USB-C Power Delivery in the successor to the Nextbit Robin, so we can enjoy that fast charging technology as well, in addition to Qualcomm Quick Charge fast charging technology.

I am waiting for my Robin to be delivered. I am really confused about the charger. Does it show anything on the screen when a proper quick charge 2 charger is used. Like, in my Nexus 5X when I use original charger it shows "charging rapidly" but when I use another charger it shows "charging" or "charging slowly" depending on the source.
I'm from Bangladesh and it's hard to find a certified QC 2.0 charger. Is it ok if I buy a charger which is has 5V2A or 9V2A or 12V1.5A written on it?

S.Nahid said:
I am waiting for my Robin to be delivered. I am really confused about the charger. Does it show anything on the screen when a proper quick charge 2 charger is used. Like, in my Nexus 5X when I use original charger it shows "charging rapidly" but when I use another charger it shows "charging" or "charging slowly" depending on the source.
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Yes, it shows the same charging messages as the Nexus.

WoodenMind said:
Yes, it shows the same charging messages as the Nexus.
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I ended up ordering a Nextbit charger.

jbarajasp said:
Will Quick Charging work with my Motorola Turbo charger if I use the Robin cable on it?
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I'm a year late, but yes it will (I tried it with a 15 watt, doesnt charge as fast as the Samsung Adaptive Fast Charging brick though)

palf91 said:
I'm not sure, but I've tested it with Aukey (wall) and Anker (car) chargers, both work fine with Quick Charge 2.0 speeds.
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Can you tell me the complete name of your wall charger please ?

RaiZProduction said:
Can you tell me the complete name of your wall charger please ?
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This one right here.

palf91 said:
This one right here.
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Nevermind

My Nextbit charges slowly no matter what . i have tried new cables and different adapters and outlets. Could it be a software issue ?

delvox said:
My Nextbit charges slowly no matter what . i have tried new cables and different adapters and outlets. Could it be a software issue ?
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What version of the os?

With a Qualcomm 3.0 charger and 3.0 cables, I get 2500ma speeds (12.5w). Only when charging from less than 50% though. The charging speed slows down as you approach 100%. The lock screen should say "charging rapidly" if it's working though.

boxes said:
What version of the os?
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Android 7.1.1 with nextbits original firmware

Updated [Comparison] HTC 10 QC 3.0 Charging test, QC 2.0, Type-C Fast Charging

Method:
First I used my phone until the battery was below 15% in order to get a better picture of what the charging would look like over almost a full battery cycle. I did not start at the same battery percentage for each test because I did not find any benefit to doing so. I original did this for uniformity, but it did not make a difference after trying it using the more accurate equipment.
I then cleared my history in the Battery Monitor Pro Widget (BMW Pro) recording app which was used to log the battery [mV], battery temperature [F], time, and battery percentage changes. Once this was done I plugged in my USB Power Monitor, turned airplane mode on, removed the case, and let the phone charge. I started logging the data via my power monitor once the phone showed it was charging. From this point onward I let the phone charge without interrupting it until it reached 100%, then I let it charge for another 10-60 minutes to see if it was still drawing power from each charger. Once all of this was done, I exported my data collected from BMW Pro, emailed it to myself, and pasted it along with the USB Power Monitor data into an Excel spreadsheet. All of the data was then delimited to separate the clusters of data due to the way they were recorded, and subsequently graphed. The USB Power Monitor recorded data points every 0.36 seconds, while the BMW Pro took recordings every 5 seconds because I was having issues with the “real-time” recording option in the app working correctly.
All of the data was then graphed into the nice figures you will see below; each color reflects the same variable across all of the graphs to make reading them easier. I included a legend at the top of each set of graphs which should also help make it easier to read the data.
Equipment:
These tests were conducted using a series of different chargers. The same brand was used for both Quick Charge 2.0/3.0 tests to minimize experimental error; This trend remained the same was also done for the wireless charging tests
Wall Chargers:
Quick Charge 2.0: Tronsmart 18W charger 5V/2A, 9V/2A, 12V/1.5A
Quick Charge 3.0: Tronsmart 18W charger 3.6-6.5V/3A, 6.5-9V/2A, 9-12V/1.5A
Cable(s):
Stock HTC USB A-C cable
USB inline Power Monitor:
XYZ Studio 0-24V, 0-3A USB Power Monitor
Tronsmart 5-12V USB multimeter (not used in this test, but was used in the older version)
Software/App(s):
Battery Monitor Widget Pro
Excel
Notepad++
Realterm (for the USB power monitor logging)
QC 3.0 Stock Charger
QC 3.0 Tronsmart Charger
QC 2.0 Tronsmart Charger
Data Tables
Full sized versions of the graphs, and tables can be found here
Video detailing the results can be found here

I thought qc 3.0 was just supposed to be more energy efficient and produce less heat than qc 2.0. I never heard it was supposed to be faster.

jollywhitefoot said:
I thought qc 3.0 was just supposed to be more energy efficient and produce less heat than qc 2.0. I never heard it was supposed to be faster.
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It is supposed to be more efficient and charge faster. (see attached Qualcomm promotional images)

I like your Tests. But why do you measure all 5 Minutes?
The App BatteryLog Records state every time the % changes.
Sadly the Bluetooth Module on my usb Powermeter broke off. So I have to get this repaired first before I can do any charging Benchmarks

Haldi4803 said:
I like your Tests. But why do you measure all 5 Minutes?
The App BatteryLog Records state every time the % changes.
Sadly the Bluetooth Module on my usb Powermeter broke off. So I have to get this repaired first before I can do any charging Benchmarks
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Actually recording it is more accurate than any app will be. Now that I have a baseline I could see if the app is accurate but the last time I checked out wasn't.

the HTC 10 charging slows down after 90% is that accounted for in these test? it reaches 90% in less than an hour

hamdir said:
the HTC 10 charging slows down after 90% is that accounted for in these test? it reaches 90% in less than an hour
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Yes, it gets dreadfully slow after 90% (I can upload my spreadsheet of the charging data to google drive if you want to see it, or post the table in the OP).
You can check the OP in about 10 minutes for an update
OP Updated:
-Historical charging tests added as a reference
-HTC 10 QC 3.0 full data table added
-First 1 hour charging data added for 3 devices including the HTC 10

Lol, the voltage curve is awesome xD

Haldi4803 said:
Lol, the voltage curve is awesome xD
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I can add an actual plot of it too if you would like. I am going to conduct a test using QC 2.0 to see how it consists to QC 3.0 maybe tonight if I get a chance. If there's s anything you would like to see let me but know.

I'm not sure is this is accounted for but I've noticed this is the first phone I've had that I can remember having the battery percentage seem accurate. My G3 would hit 100% but if I left it on the charger an hour past that, I got more out of my "100%". I would at times get 30 mins SoT on 100% but then 3 mins per afterwards. My HTC 10 actually seems to drain evenly throughout the 3000mAh which means while a G3 may read 100%, it's actually at 91%. Other phones could have inaccurate percentage reporting which make for a greater perceived charging speed.

mosincredible said:
I'm not sure is this is accounted for but I've noticed this is the first phone I've had that I can remember having the battery percentage seem accurate. My G3 would hit 100% but if I left it on the charger an hour past that, I got more out of my "100%". I would at times get 30 mins SoT on 100% but then 3 mins per afterwards. My HTC 10 actually seems to drain evenly throughout the 3000mAh which means while a G3 may read 100%, it's actually at 91%. Other phones could have inaccurate percentage reporting which make for a greater perceived charging speed.
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That's why I measured the true 100% via a multimeter, otherwise it would be hard to tell if it really was at 100%.

Pilz said:
That's why I measured the true 100% via a multimeter, otherwise it would be hard to tell if it really was at 100%.
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My mistake. I should've read more lol And I'm always upset when people post without reading the OP. :silly: I got caught up by all the pretty graphs.

mosincredible said:
My mistake. I should've read more lol And I'm always upset when people post without reading the OP. :silly: I got caught up by all the pretty graphs.
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No problem! I can make them less post t if that helps

Update coming tomorrow with a QC 2.0 test for the HTC 10. A quick preview: QC 2.0 seems to be better during the first hour data tables, graphs and comments to follow

OP Updated:
HTC 10 QC 2.0 test and more data added

I am in the process of conduction a second round of testing using a Tronsmart QC 3.0 wall charger, and a Tronsmart QC 2.0 version of the same charger. I am using the same brand of chargers for consistency.

Pilz said:
I am in the process of conduction a second round of testing using a Tronsmart QC 3.0 wall charger, and a Tronsmart QC 2.0 version of the same charger. I am using the same brand of chargers for consistency.
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Since you've done a lot of charging, are chargers with QC 3.0 supposed to read "Charging Rapidly"? My QC 3.0 car charger didn't say "Charging Rapidly" with USB C to C and I'm wondering if I need to send it back. It did charge mighty fast though.

mosincredible said:
Since you've done a lot of charging, are chargers with QC 3.0 supposed to read "Charging Rapidly"? My QC 3.0 car charger didn't say "Charging Rapidly" with USB C to C and I'm wondering if I need to send it back. It did charge mighty fast though.
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Click to collapse
Well what charger were you using? If the charger doesn't support QC 2.0/3.0 from the Type-C port and instead uses the Type-C standard (5V/3A) that the Nexus 5X/6P use, then it won't fast charge. I never look at what the phone says because its irrelevant so I use a multimeter instead. The only downside to that is that no C-C multimeter's exist yet. The phone can only support 1 charging standard at a time, so that means it either supports Quick Charge 1.0/2.0/3.0 or Type-C fast charging not both. That is why is will charge slower over a C-C cable unless the Type-C port on the charger supports Quick Charge from Qualcomm not the USB standard version.

Pilz said:
Well what charger were you using? If the charger doesn't support QC 2.0/3.0 from the Type-C port and instead uses the Type-C standard (5V/3A) that the Nexus 5X/6P use, then it won't fast charge. I never look at what the phone says because its irrelevant so I use a multimeter instead. The only downside to that is that no C-C multimeter's exist yet. The phone can only support 1 charging standard at a time, so that means it either supports Quick Charge 1.0/2.0/3.0 or Type-C fast charging not both. That is why is will charge slower over a C-C cable unless the Type-C port on the charger supports Quick Charge from Qualcomm not the USB standard version.
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The Aukey 3 port car charger and it says the USB-C port is QC 3.0. Guess I should assume it's actually doing what it's supposed to since it charges stupid fast.
http://www.amazon.com/Charger-AiPow...UTF8&qid=1463369439&sr=8-9&keywords=aukey+3.0
On Topic: Those numbers for the HTC 10 QC 2.0 vs 3.0 are very interesting. Looks like QC 3.0 is definitely more efficient. And I assume changes in voltage are it monitoring temps and trying to keep them down. This is all new to me so I'm learning.

mosincredible said:
The Aukey 3 port car charger and it says the USB-C port is QC 3.0. Guess I should assume it's actually doing what it's supposed to since it charges stupid fast.
http://www.amazon.com/Charger-AiPow...UTF8&qid=1463369439&sr=8-9&keywords=aukey+3.0
On Topic: Those numbers for the HTC 10 QC 2.0 vs 3.0 are very interesting. Looks like QC 3.0 is definitely more efficient. And I assume changes in voltage are it monitoring temps and trying to keep them down. This is all new to me so I'm learning.
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It should charge at QC 3.0 speeds from my understanding. I have a Tronsmart wall charger that supports QC 3.0 over type-c, so I can test it when I get a chance.
I am redoing both tests with the same brand of charger since I used the stock HTC charger for the 3.0 and a Choetech one for the 2.0 test. I will be using Tronsmart chargers for each of the new tests, and I will post them up with the old ones. The QC 3.0 does really keep the heat down that much, because if it did the current and voltage could be much closer to the 18W it seems to support on this phone. QC 2.0 seems more consistent and maintains its output longer before tapering off which can be a bad or good thing. I might download an app to verify my results and to see the temperature, but I don't know how well that will work and or if it will affect the charging times.

Charging Speeds and Confusion

Hey guys! I've been a long time lurker and finally have decided to come out of the woods and get some help.
I'm looking to order all my accessories today however I want to make sure I'm getting what I need so I don't have to go back and buy different cords.
I guess my first question is: Will a USB C to USB C cable charge faster than a USB A to USB C cable? Or does it all depend on the wall/car adapter?
I was hoping to buy 3 USB C to USB C cable with an extra wall adapter and car adapter. The whole USB C and QC 3.0 discussion has confused me like many others. What do I need? This is what I was looking at getting:
Anker PowerLine USB-C to USB-C 2.0 Cable (3ft): (Can't post links...)
USB C Charger,Tronsmart 30W Dual USB Wall Charger with Quick Charge 3.0 Technology: (Can't post links...)
USB C Quick Charge 3.0 AUKEY Car Charger with Dual AiPower Ports: (Can't post links...)
Do all of these products seem that they would give me the best possible charging times and be safe to use with the HTC 10? I appreciate all the help!
Thanks much!

I'm using the Aukey in my car and it charges really quickly and the popup for rapid charging comes up.
Can't really recommend the others only the one I have.

spicypixel said:
I'm using the Aukey in my car and it charges really quickly and the popup for rapid charging comes up.
Can't really recommend the others only the one I have.
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So you use USB A to USB C? There won't be a noticeable difference between the charge times if using a USB C to USB C cable?

type a to c "may" limit speeds in some situations. like this car charger you wont get the quick charge from they type A to C but if you use the type c to c in the other port youll get the speeds with say these cables here

The phone can't support two USB specs simultaneously because that's a direct violation of the spec. If you use a C-C cable with a charger that outputs via QC 2.0/3.0 then it will charge at QC 2.0/3.0 speeds. On the other hand if you use a charger that is for the Nexus 5X/6P which outputs using the USB-C charging spec (5V/3A: 15W) then it will charge slowly at 1.5 A not fast charge. This is because it can only support one standard or the other no both, so I recommend just getting QC 2.0 or 3.0 chargers and use whatever port they offer. It could either use a conventional USB-A or the USB-C as long as you use the appropriate cable and the charger spec matches your phone (Qualcomm quick charge), then there won't be any issues.

Pilz said:
The phone can't support two USB specs simultaneously because that's a direct violation of the spec. If you use a C-C cable with a charger that outputs via QC 2.0/3.0 then it will charge at QC 2.0/3.0 speeds. On the other hand if you use a charger that is for the Nexus 5X/6P which outputs using the USB-C charging spec (5V/3A: 15W) then it will charge slowly at 1.5 A not fast charge. This is because it can only support one standard or the other no both, so I recommend just getting QC 2.0 or 3.0 chargers and use whatever port they offer. It could either use a conventional USB-A or the USB-C as long as you use the appropriate cable and the charger spec matches your phone (Qualcomm quick charge), then there won't be any issues.
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Ahhh that makes sense. Perfect response! So I'll plan on getting QC 3.0 chargers and just match the appropriate cables. It will probably come out to be cheaper this way as well.
Thanks again!

DanOpi said:
Ahhh that makes sense. Perfect response! So I'll plan on getting QC 3.0 chargers and just match the appropriate cables. It will probably come out to be cheaper this way as well.
Thanks again!
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Not a problem, I actually wrote up an OP showing the expected charging speeds via different charging methods across the devices that I own. QC 3.0 isn't faster than QC 2.0, but to conclusively prove that I will add a QC 2.0 test conducted with my HTC 10 to my OP linked below. Since I own a Nexus 6P, and S7 Edge so it's easier for me to test and check that which is why I mentioned it in my comment.
Here is the OP: http://forum.xda-developers.com/htc-10/how-to/comparison-htc-10-qc-3-0-charging-test-t3377397

Very cool. I'll check it out.
Any idea why I can't find a solid wall charger for under $25? Anker's is $26. iClever has one for $13 however I've never seen iClever talked about on here.

DanOpi said:
Very cool. I'll check it out.
Any idea why I can't find a solid wall charger for under $25? Anker's is $26. iClever has one for $13 however I've never seen iClever talked about on here.
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Click to collapse
Here are some from Choetech and Tronsmart
http://www.amazon.com/gp/aw/d/B019Q...charge+3.0&dpPl=1&dpID=41LzzQEkH5L&ref=plSrch
http://www.amazon.com/gp/aw/d/B015Z...Y200_QL40&keywords=tronsmart+quick+charge+3.0
http://www.amazon.com/gp/aw/d/B01C3...charge+3.0&dpPl=1&dpID=41FGcPJzkDL&ref=plSrch
http://www.amazon.com/gp/aw/d/B019C...charge+3.0&dpPl=1&dpID=31sKiOJkFwL&ref=plSrch

DanOpi said:
Very cool. I'll check it out.
Any idea why I can't find a solid wall charger for under $25? Anker's is $26. iClever has one for $13 however I've never seen iClever talked about on here.
Click to expand...
Click to collapse
What about this one?
http://www.amazon.com/Charger-Compatible-Samsung-Wireless-Charging/dp/B01B2SD8UW?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A10DKVET0O3A33

I just finished testing the charging speed using a QC 2.0 charger and the results were very interesting. I'll post them up tomorrow, but I don't see what the big deal about QC 3.0 is.

Pilz said:
I just finished testing the charging speed using a QC 2.0 charger and the results were very interesting. I'll post them up tomorrow, but I don't see what the big deal about QC 3.0 is.
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Click to collapse
Efficiency. Nothing more, nothing less.
I can't understand where people have gotten the impression that QC 3.0 would somehow be faster than QC 2.0, with phones that is.

lagittaja said:
Efficiency. Nothing more, nothing less.
I can't understand where people have gotten the impression that QC 3.0 would somehow be faster than QC 2.0, with phones that is.
Click to expand...
Click to collapse
Qualcomm claimed that it was faster.
Even being more efficient, it should be at least a little faster and produce less heat... both of which are good things.

lagittaja said:
Efficiency. Nothing more, nothing less.
I can't understand where people have gotten the impression that QC 3.0 would somehow be faster than QC 2.0, with phones that is.
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Click to collapse
Nitemare3219 said:
Qualcomm claimed that it was faster.
Even being more efficient, it should be at least a little faster and produce less heat... both of which are good things.
Click to expand...
Click to collapse
I posted a picture from Qualcomm where they state QC 3.0 is faster. In reality QC 3.0 is not faster, or even better from what I've seen so fsr. I didn't notice a difference in the amount of heat generated, technically the higher the volatge and lower the rate will result in a cooler phone but QC3.0 does the opposite.
Here is the slide from Qualcomm again where they say it's faster.

It's just 10% faster. You will be hard pressed to see these 10% in real life scenarios.
When they are saying it is less heat dissipation they are talking about the charger. The efficiency of power transfer is in the charger.
-= Sent from a parallel universe through a wormhole =-

ro_explorer said:
It's just 10% faster. You will be hard pressed to see these 10% in real life scenarios.
When they are saying it is less heat dissipation they are talking about the charger. The efficiency of power transfer is in the charger.
-= Sent from a parallel universe through a wormhole =-
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Click to collapse
It doesn't even charge 1% faster, in fact it's slower. There wasn't a noticeable difference in heat when I tested it. I didn't actually measure the temperature because I don't think an app will accurate depict the temps, but I can to see if it is cooler. QC 3.0 isn't all its hyped up to be unless something changes I don't think it's really all that great.

I tested out of curiosity the charger from the Note4 (QC2.0) and it is fast as well .. but I could not see any noticeable difference. ... Then again, my phone is just 4 days old so the battery is not up to speed (it requires about 5-6 cycles for a Li-Ion to get to the full potential). Maybe you are right, maybe I'm right .. I do not know yet.
However, if I reach a definitive conclusion with my gear I'll post it here.

ro_explorer said:
I tested out of curiosity the charger from the Note4 (QC2.0) and it is fast as well .. but I could not see any noticeable difference. ... Then again, my phone is just 4 days old so the battery is not up to speed (it requires about 5-6 cycles for a Li-Ion to get to the full potential). Maybe you are right, maybe I'm right .. I do not know yet.
However, if I reach a definitive conclusion with my gear I'll post it here.
Click to expand...
Click to collapse
I've verified that more or less with my testing so for better or worse we have QC 3.0 if you choose to use it.

USB-C chargers with QC3 work fine with the Pixel2XL?

Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.

QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

Don_Perrignon said:
QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app
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You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
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Click to collapse
No. It comes with a Power Delivery charger, the phone is a Power Delivery device.
QC3 and below will charge at a standard (slower) speed. QC4 is compatible with QC and Power Delivery - but, at this time there is no QC4 chargers, oddly.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
Click to expand...
Click to collapse
google use PD standard instead of QC
so if you want fast charging
get your self a PD charger
---------- Post added at 01:38 AM ---------- Previous post was at 01:37 AM ----------
dimiboy said:
Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.
Click to expand...
Click to collapse
pd charger if you want fast charging

The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?

wtherrell said:
The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?
Click to expand...
Click to collapse
He said many other things, too.
I think constantly charging with the screen off helps with the charging speed. It shouldn't, but reading other threads has me thinking this. I also, think his phone is faulty.
He also said he thinks the speed is ok.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.

So as far as I checked, everything is charging well.
The problem is that if you will install few other Ampere measuring programs, some will reveal that they don't have access to the sensor of the phone so the data isn't accurate.
so, we can hope it's ok. sadly I can't find anywhere a physical USB-C Ampere meter to buy for now.

Voicebox said:
For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.
Click to expand...
Click to collapse
Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.

CBMC said:
Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.
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Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.

Voicebox said:
Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.
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Click to collapse
Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.

CBMC said:
Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.
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Yeah, thanks. I'm not on Google + and I tried searching earlier and some usb C groups popped up, and they had so much unrelated stuff I just stopped looking.

does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?

phyl0x said:
does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?
Click to expand...
Click to collapse
I have used many different types of chargers with no issue.
Nexus 6
Samsung Note 5
Chromecast
Asus that was used for my old dock stations
Generic USB plug in my desk powerbar (likely 5V 1a standard)
QC3 car charger
PD car charger
Sent from my Pixel 2 XL using Tapatalk

how to get more speed charging?

hi guys,
i have two chargers,
1. output 9.0V 1.67A or 5.0V 2.0A
2. output 5.2V 2.4A
and a usb-c cable, in the cable box i find that this cable is supporting for fast charging and support to 2.4A but when i tried it with the two chargers, and test it using 'ampere' app i got max to 1010mA with both chargers adapter ! even with this value i feel it charging my mobile quickly, and in the bottom of the lock screen i see 'charging rapidly' but i want more and why the phone is not charged depending on the values in the chargers (1.67A - 2.0A - 2.4A) and cable (2.4A)

The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.

You realize slow charging is better for the long-term life of the battery, right?

sublimaze said:
You realize slow charging is better for the long-term life of the battery, right?
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Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.

Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
Click to expand...
Click to collapse
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help

Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
Click to expand...
Click to collapse
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.

Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Click to expand...
Click to collapse
tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Click to expand...
Click to collapse
There's nothing I can help you guys with. All I can tell you is what ratings your charger should have, based upon the information printed on the pair of chargers I received with my device when I purchased it directly from Google. If you have a genuine Google charger and the P2XL is still not charging fast, contact Google.

stuff said:
Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.
Click to expand...
Click to collapse
Unfortunately, i hope someone could help

Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Click to expand...
Click to collapse
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.

pemz82 said:
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.
Click to expand...
Click to collapse
maybe your opinion is right. my next experiment is from 0% to 100% with the old charger and with the stock charger, then i will see if there is a difference

tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Click to expand...
Click to collapse
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.

nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
Click to expand...
Click to collapse
That makes sense then, it seems like everything gets more complicated every year.

I just purchased one of these from Amazon. Note that it supports Power Delivery 3.0. This unit quick charges my phone. The Moto Charger I have for my old Moto G5+ which is a Qualcomm charger will charge the phone but only at slow speeds.
https://www.amazon.com/gp/product/B07H6BQNGF/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
Click to expand...
Click to collapse
i bought this : http://www.ebay.com/itm/113109823570
what do you think ?

If it is really the OEM parts that will work. The pictures look like mine, but ya know eBay....