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QuickCharge 3.0, across 6 chargers, is somehow not working on my V20

I picked up a T-Mobile V20 2 days ago. Rooted it the same night, and tested out a few chargers I had laying around to make sure the ones I had, along with cables, worked properly after having most everything not work properly with my Pixel XL.
The stock charger would not charge my phone at more than 3 watts (but I never touched the stock charger until I started noticing the issue).
A Samsung QC charger, with any cable, would not charge my phone more than 9 watts.
An Anker PowerPort+ 1, Type C, QC 3.0 charger, with any cable (to include Anker cables and the Pixel XL OEM cable), will not charge over 12 watts.
Absolutely NONE of my QC 3.0 car chargers register as "fast charging" - these include an iVoler Type C and USB A, Anker USB A, Tronsmart Type C, with various cables. A standard cabled Type C charger from i-Orange does not say "fast charging," but seems to be charging at 5V/3A as it is MUCH faster than all the others.
The ONLY charger that is fast charging my phone is the Pixel XL OEM charger. Measured at the wall, it has peaked at 19.2 watts.
I'm really confused. I don't know if my QC 3.0 has been defective since I got the phone, or if plugging my phone into the USB PD Pixel XL charger somehow screwed things up...
Does anyone have any ideas here?

All my old QC chargers work and I'm currently using the note 7 oem one atm as it does not get as hot (charger not phone) as the LG oem one under load. What does the app ampere say your getting?

It takes a while, try a very low battery and give it 10 minutes or more screen off, must be cool too

I got an existing aukey qc 2.0 fast charging fine while using a Samsung adaptive fast charger also fine, I am waiting for my qc 3.0 aukey one to be arrived possibly tomorrow to see if I could charge faster and lower temperature than my existing ones, I cannot check the watts though

My phone is either defective (not surprising given LG's GARBAGE quality control) or the software has somehow screwed up from root, etc. (highly unlikely as I am the only one with an issue).
With that said, I made an interesting discovery. My phone, using USB Power Delivery, charges much faster than my girlfriend's, using QuickCharge 2.0 or 3.0. I tested this 2 times from 5% battery on both phones. I tested this with a QC 3.0 car charger and the OEM QC 2.0 charger. The difference is substantial... first test was about 40 minutes. My phone was near 80%, hers was at 55%. The 2nd test was only 15 minutes. Mine was near 40%, hers only 27%.
reaverclan said:
All my old QC chargers work and I'm currently using the note 7 oem one atm as it does not get as hot (charger not phone) as the LG oem one under load. What does the app ampere say your getting?
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Don't remember what Ampere says, but it was <500mA. Also, I used a USB current meter. It hovered around 5V/0.5A no matter what charger I used. I don't have a Type C/Power Delivery current meter, so I couldn't test those chargers... but USB PD is CLEARLY working very well on the V20. Much better than QC.
wing_addict_usa said:
It takes a while, try a very low battery and give it 10 minutes or more screen off, must be cool too
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It does not take awhile - takes <5 seconds to begin the QuickCharge process. Phone does not need a very low battery - will show fast charging regardless of the %. Does not need to be cool - fast charging is shown when the QC handshake occurs - not based on actual charging current. My girlfriend also has a V20. Every charger I tested with mine (which did not work), successfully QuickCharges hers.

Are you you using 56 k resistor cables?plus being rooted a kernel app would have a section to disable fast charge or enable it. Most devs disables by default. So if using custom kernel something to look in to. As I doubt there is anything wrong with your phone.
Sent from my LG-H910 using Tapatalk

Just got the aukey PA-T15 qc 3.0 seems fast charging fine though I have no time for a 0% to 100% test yet

Dark Jedi said:
Are you you using 56 k resistor cables?plus being rooted a kernel app would have a section to disable fast charge or enable it. Most devs disables by default. So if using custom kernel something to look in to. As I doubt there is anything wrong with your phone.
Sent from my LG-H910 using Tapatalk
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All of my cables are good. No custom kernel, and I've never seen a dev disable fast charging by default... that would be very unpopular.
Anyway, it seems that LG's recent phones, to include the G5 and V20, are actually supporting both QC 3.0 and USB PD. This is also probably why QC 3.0 chargers that use Type C do not work (the Anker PowerPort+ 1 in my case). On a C to C connection, with USB PD present, USB PD will take precedence over QC 3.0 (since QC 3.0 is illegal with C to C anyway). But that still doesn't explain why my phone doesn't QC via USB A to C... so I'll chalk it up to LG's garbage quality control.
I'm glad it worked out this way. USB PD charges my phone WAY faster than QC 3.0 charges my girlfriend's V20. So I would suggest you all dump QC 3.0 (because it's non-compliant to anyway) and grab USB PD equipment since it's the way of the future anyway.

I'm starting to think that there's something wrong with the way V20 handles QC 3.0. I'm in a somewhat similar situation with you, tested three different QC 3.0 using almost 10 different A->C cable (including the OEM cable) and none of them would deliver QC 3.0 speed. (I just came in a from Axon 7 and the difference between charging speed is night and day).
Additionally, I wish there's an app to properly identify what's going on during charging.
Using the built-in battery test from Service mode (see screenshot), it always says that I'm on QC 2.0 whenever I'm charging using QC 3.0 chargers.

My unit (LG-H990DS) is charging very quick though.
Using stock charger & cable, charging time is very consistent from 0 to 100%. 95 mins is all it takes.

yluxion said:
My unit (LG-H990DS) is charging very quick though.
Using stock charger & cable, charging time is very consistent from 0 to 100%. 95 mins is all it takes.
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The stock charger that LG sent with the V20 is actually a QC2.0 unit.
and with QC3.0, it'll take you less than an hour to fully charge.

baymon said:
The stock charger that LG sent with the V20 is actually a QC2.0 unit.
and with QC3.0, it'll take you less than an hour to fully charge.
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Original Charger
Aukey QC3.0 Charger
Both results are similar.
So now LG V20 under utilise the Aukey QC3.0?

yluxion said:
Original Charger
Aukey QC3.0 Charger
Both results are similar.
So now LG V20 under utilise the Aukey QC3.0?
Click to expand...
Click to collapse
I can't say for sure, because I have no way to get a baseline on how fast a QC 3.0 charger charge at the correct QC3.0 rate on the V20....
At least according to the battery test from the service mode menu, none of my QC3.0 chargers are being recognized as QC3....and it definitely doesn't charge as fast as 3.0 based on my previous experience with axon 7.
on The Axon 7, I can still be playing Mobius FF (which is very battery intensive) and still charging up at about 1% per minute.

I'm pretty sure our phone doesn't have QC3 as I just mentioned in another thread. I'm like.. 97% sure? I remember reading early on that it was QC2, and a blend of LG that got it a little more robust than that. I'm not sure all of what's required for QC3 to work, obviously the 820 SOC supports it, but, not sure why I read that we don't have QC3.,

dbornack said:
I'm pretty sure our phone doesn't have QC3 as I just mentioned in another thread. I'm like.. 97% sure? I remember reading early on that it was QC2, and a blend of LG that got it a little more robust than that. I'm not sure all of what's required for QC3 to work, obviously the 820 SOC supports it, but, not sure why I read that we don't have QC3.,
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Yeah, I'm starting to believe that's the case now. I just updated the thread btway, now they're saying that 3.0 isn't enabled by LG.
Not sure this is the case of Tmo employee not knowing their sh*t or what.

baymon said:
Yeah, I'm starting to believe that's the case now. I just updated the thread btway, now they're saying that 3.0 isn't enabled by LG.
Not sure this is the case of Tmo employee not knowing their sh*t or what.
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FWIW, I have a couple of Aukey chargers. One is QC2, and one is QC3. They both "fast-charge" my phone, but I don't think I get the fastest charge on anything but the LG adapter. Usually it's fast enough for me, but I guess if I was 10-15% left, and I needed 100% in less than an hour, it might not happen.

I just picked up a US996 (Unlocked V20)... and found this site while trying to make a decision on buying new chargers, cables, etc.
I opened a chat with LG to ask them if the V20 supports USB-PD... and I got this response:
Merwin
Not that we can verify, Ryan we because we have not tested it. I highly suggest you to use the OEM charger of the V20.
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So... no help from Merwin @ LG. It seems they're not allowed to comment on it, and can only recommend the OEM charger. I was unaware that it was only QC2.0, according to the testing above.
Has anyone done more testing since? Can I buy a USB-PD charger and C-to-C cable? Should I avoid QC3.0?
Thanks

I'm interested in this as well having bought 2 QC3 chargers and neither charge my phone as fast as QC3 advertises.
I have used my brothers stock Nexus 6p charger from Google and the times are about equal to my QC3 chargers I bought

I'm using a Samsung QC 2.0 charger for mine:
https://www.amazon.com/Samsung-EP-TA20JWE-Travel-Charger-Devices/dp/B00TEUVEIO
I use it because I lost the LG one. It does quick charge but I can't measure the rate in the service menu. It just stays blank.

This is real easy, it happens with qc 3 on my v20 and s8+
The phone does not quick charge when the battery is warm or when the screen is on. Its really that simple. You can get faster charge times using a qc 2.0 charger or a dumb 18 watt adapter. Neither one is as picky about sending power to a warm battery, but your batteries life will be shorter than it was designed to be.
QC 3 will charge a cold empty battery faster, but in real life, it will preserve your battery over fast charging the phone.

Car super charger

What type of car charger do you use, wireless or cable? Where did you buy it from? Does it have super charge also?

Indeed Huawei announced a car charger, and I've also wondered why I haven't been able to find it for sale anywhere.

duraaraa said:
Indeed Huawei announced a car charger, and I've also wondered why I haven't been able to find it for sale anywhere.
Click to expand...
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https://www.amazon.fr/gp/product/B01AHXO4QK/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

benshoes said:
https://www.amazon.fr/gp/product/B01AHXO4QK/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
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Click to collapse
We're all looking for a car charger that support Huawei's Supercharge, not Qualcomm's Quickcharge.

are they the same?

No. Huawei's Supercharge is proprietary. You need their chargers, and their cables, to get full charge rate. They have a car charger listed on their site, but so far, it doesn't appear to be available anywhere.

I REALLY REALLY want that charger ASAP

MarcelMAH said:
I REALLY REALLY want that charger ASAP
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Why? This phone has fantastic battery life and insane charging speeds. Charge with SuperCharge at home, and top up if you need to with a slower charger during the day... but you shouldn't need to do this. A standard USB type C charger will work well. USB PD works even better.

Nitemare3219 said:
Why? This phone has fantastic battery life and insane charging speeds. Charge with SuperCharge at home, and top up if you need to with a slower charger during the day... but you shouldn't need to do this. A standard USB type C charger will work well. USB PD works even better.
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I dont think the mate 9 supports usb pd

aknotts415 said:
I dont think the mate 9 supports usb pd
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It pulls 20 watts from the wall when hooked up to my Pixel XL charger, which is USB PD. I'd have to say it certainly does.

Nitemare3219 said:
It pulls 20 watts from the wall when hooked up to my Pixel XL charger, which is USB PD. I'd have to say it certainly does.
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Click to collapse
Just because it does doesnt mean its safe and compatible for the phone.

aknotts415 said:
I dont think the mate 9 supports usb pd
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aknotts415 said:
Just because it does doesnt mean its safe and compatible for the phone.
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Click to collapse
USB PD requires negotiation with the device to determine maximum power output. The charging brick must negotiate, as well as the e-marked cables I am using, to come anywhere close to the power the Mate 9 is pulling.
The Huawei charger pumps over 25 watts of power into the battery. This USB PD charger is doing 20 watts, max, and even less really because of voltage conversion that the Mate 9 charger doesn't have to do.
Unless Huawei totally screwed up designing the phone, it is safe. USB PD is not like QuickCharge... it is part of type C's specification. I have used Google's USB PD charger on a Note7 and LG V20 with zero issues, and those devices charged extremely fast using it as well.

Nitemare3219 said:
Why? This phone has fantastic battery life and insane charging speeds. Charge with SuperCharge at home, and top up if you need to with a slower charger during the day... but you shouldn't need to do this. A standard USB type C charger will work well. USB PD works even better.
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Click to collapse
Because the Belkin 2A charger + cable I have now is unable to charge it while I'm also using it with Spotify and Google Maps with the screen on. When I turn the screen off it charges really slow (Google Maps still running). I use this phone for navigation also when I'm working and sometimes I need it just for navigation 4 hours (and back) and then I also use it as a hotspot on location with clients. So ideally I would like my phone to be 100% when I arrive an not 70, by the time I get home it's at 30 and then I have the whole evening with only 30 % left.
As far as I know USB PD isn't supported with the Mate 9 BUT using a charger and cable that do support should not be dangerous as the charge is negotiated. I do find it strange that yours draws 20 watts.... would like someone to verify because if it is I'm buying a USB PD charger as that is the future!

Does anyone know if the Mate 9 supports Qi wireless charging?
Sent from my Nexus 6 using XDA Free mobile app

jscsltd said:
Does anyone know if the Mate 9 supports Qi wireless charging?
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
It does not...
Sent from my MHA-L29 using Tapatalk

Got a USB PD car charger, it charges really quick:good:

Nice! ☺ where did you buy it?

rickyleung said:
Got a USB PD car charger, it charges really quick:good:
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Sounds interesting! Does it have a name, price, and seller?

Aukey car charger with USB c & power delivery, I got it on amazon

At least there's now an article about the Supercharge car charger, so it's probably just a matter of time.
http://huaweiblog.hu/huawei-supercharge-car-adapter/

Fast battery charging coming with Oreo?

https://www.reddit.com/r/Xiaomi/comments/7luq2l/fast_charging_is_coming_on_mi_a1_with_oreo_update/

Don't mistake that for Qualcomm QuickCharge 3.0. That just means it is charging at 5v/2A. The phone already does that when paired with a good charger and cable.

goofball2k said:
Don't mistake that for Qualcomm QuickCharge 3.0. That just means it is charging at 5v/2A. The phone already does that when paired with a good charger and cable.
Click to expand...
Click to collapse
check this out: https://telecomtalk.info/mi-a1-android-8-0-oreo-beta-hands-on/171866/amp/

santr33 said:
check this out: https://telecomtalk.info/mi-a1-android-8-0-oreo-beta-hands-on/171866/amp/
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Let's do some calculations
3000mAh battery
2000mA charger
That gives about 1.5hrs or so to charge. If we factor in 20% additional time, just because it slows down the charge rate at about 90% or so, then we come in around 1.8hrs. That's not that far off from what the user noticed, and if the phone is off the whole time during charging, then there is no additional battery use from radio/wifi/apps.
Not to say that they didn't implement some other thing with Oreo but definitely it is not QC 3.0 charging.

its still same.... no change at all
Sent from my Mi A1 using Tapatalk

Qualcomm quick charger 4 supported?

Do anyone know does nex support Qualcomm quick charge 4?

no it does not, i think it just support up to QC 2.0 since they are using their own charging tech

I'd say it supports QC3, my Nex charges from 5% to 100% in about an hour, maybe 80 minutes tops

thewildwind said:
I'd say it supports QC3, my Nex charges from 5% to 100% in about an hour, maybe 80 minutes tops
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Which version do you own? I own the global version, stock charger is 5V 2A, I've tried my QC 3.0 charger, but doesn't charge faster.

Valeriuz said:
Which version do you own? I own the global version, stock charger is 5V 2A, I've tried my QC 3.0 charger, but doesn't charge faster.
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I have the global version too with a QC 3.0 charger. Never actually used the stock charger but the times listed stand.
If you want I can measure them next time I charge

thewildwind said:
I have the global version too with a QC 3.0 charger. Never actually used the stock charger but the times listed stand.
If you want I can measure them next time I charge
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Click to collapse
Yes, please let me know if you discover any differences between stock charger and a QC charger.

people already did it , no matter what quick charge tech, max you can get 9-10w, only with vivo chager can get 20w, doesn't really work with pd or qc4.0

Is Power Delivery Supported?

Does this model support power delivery like the Pro model? If so has anyone tested how many watts it pulls from a power delivery charger? Oneplus states the pro model supports 5V/3A power delivery which I believe is 15watts.

Pro 30W
Non Pro 20W

Linuxkek said:
Pro 30W
Non Pro 20W
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These specs are for Oneplus's proprietary warp charging which is separate from the power delivery standard.

Without that it's unreal slow, maybe 1A

Linuxkek said:
Without that it's unreal slow, maybe 1A
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you are uninformed. in addition to Warp, the 7p supports PD upto 3a with screen off. Android police confirmed this in their review.
OP is asking if 7 also supports this.

I have not measured charging speeds, etc. but I have a bunch of official Google PD bricks here for my 2XL and my OP7 charges just as fast, if not faster, than my Pixel. Just anecdotal but I was happy with charging performance.

I've charged my OnePlus 7 from 14% to 100% in about 1h and 15min. I call that really fast charging.

nIGhT-SoN said:
I've charged my OnePlus 7 from 14% to 100% in about 1h and 15min. I call that really fast charging.
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With the charger that came with the phone or a different charger?

The included charger, it's the 20W one.

Linuxkek said:
Without that it's unreal slow, maybe 1A
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nIGhT-SoN said:
The included charger, it's the 20W one.
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Do you know what this thread is about?
Everyone knows Dash 20W is super fast. We're asking about USB PD.

heov said:
Do you know what this thread is about?
Everyone knows Dash 20W is super fast. We're asking about USB PD.
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Like I sad, it will be 1A, maybe for the first 50% 1.5A, because with 3A a lot will not pay the extra bucks for Dash charger.
Pro: 5V/6A - 3A
Non-Pro: 5V/4A - 3A? No way... with luck maybe 2A
I will get my OP7 next week and I can test it but I'm sure you will get up to 1.5A

I've charged it with a power bank from Huawei, with fast charge and it charged pretty quick. I haven't look at the time it took, but next time I will.

Linuxkek said:
Like I sad, it will be 1A, maybe for the first 50% 1.5A, because with 3A a lot will not pay the extra bucks for Dash charger.
Pro: 5V/6A - 3A
Non-Pro: 5V/4A - 3A? No way... with luck maybe 2A
I will get my OP7 next week and I can test it but I'm sure you will get up to 1.5A
Click to expand...
Click to collapse
So you are saying:
OP7 Pro supports USB 3.1, USB PD protocol to 3A, and Warp-protocol to 6A
OP7 supports USB 3.1, Dash-protocol to 4A, but NOT USB-PD?
Please do test it- to confirm, you must have 1. screen off 2. a USB power meter that can measure the draw (or an app that can record the draw while the screen is off- viewing current while in app will not work since it only works with screen off.
There seems to be a lot of people who don't understand what USB-PD is. Of course, if you use a normal USB charger that is neither Dash/Warp nor USB PD, it will not draw more than 1.5A.

nIGhT-SoN said:
I've charged it with a power bank from Huawei, with fast charge and it charged pretty quick. I haven't look at the time it took, but next time I will.
Click to expand...
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You can use a app, which will tell you how fast it charge.
heov said:
There seems to be a lot of people who don't understand what USB-PD is. Of course, if you use a normal USB charger that is neither Dash/Warp nor USB PD, it will not draw more than 1.5A.
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Dude, USB-PD means USB Power Delivery. How somebody can not understand what this mean?
Oppo slow it down to sell VOOC/Dash charger (and cable) in the kernel, like on the OnePlus devices before.
When the OP7 support 3A, with 5V, you will get 15W, which is almost QC 3.0, so you can get 5 charger and any cable you want for the same price as a Dash charger. There is no way!

So I've tried today charging with my power bank, a HUAWEI 10000mAh QuickCharge power bank, from 1% to 100% and it took about 2h and 30min. From 15% I think it would take about 2h to charge. Power bank fast charging is rated at 9V 2A 18W. With Ampere it was showing to chager at about 1.3-1.4A. I would say it's pretty ok, it's not as fast as with the original charger, but it's ok.

nIGhT-SoN said:
So I've tried today charging with my power bank, a HUAWEI 10000mAh QuickCharge power bank, from 1% to 100% and it took about 2h and 30min. From 15% I think it would take about 2h to charge. Power bank fast charging is rated at 9V 2A 18W. With Ampere it was showing to chager at about 1.3-1.4A. I would say it's pretty ok, it's not as fast as with the original charger, but it's ok.
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That is not a USB-PD bank. It'll charge at 1.5A tops with that. Our phones can't do QuickCharge.
Do the same test if you can, but use a USB-PD charger and screen off.
This thread is about getting a confirmation that it can regulate with USB-PD upto 3A when the screen is off. Our phones will not support QuickCharge or any other proprietary protocol.
We know It does Dash/Warp, regular USB upto 1.5A, and now we want to know if it does USB PD.
---------- Post added at 09:16 AM ---------- Previous post was at 09:04 AM ----------
So I caved and finally tested it myself.
Yes, the regular OnePlus 7 does support USB-PD 5v upto 3A with the screen off. With the screen on, I could get 1.94A
I used an Essential PH-1 included charger, which is a USB-PD charger that can do 5V and 9V upto 3A. I went from 60% to 70% in 8 minutes, and used the logkit to capture the current. While on, I was getting a consistent 1.94A, which is higher than a regular USB charger which usually peaks around 1.4-1.5A. With the screen off, I kept the logkit going, and you can see the average is well above 2A (again, this is average- I had the screen on for a while before an after, which is why the average isn't 3A). It's also worth noting this was only from 60-70%.
So yes, like the OP7 Pro, the OP7 also supports USB-PD up to 3A with the screen off, and upto 2A with the screen on, much faster than a regular USB Charge, and ALMOST on-par with Dash Charging with screen off.
So hopefully this puts this thread to rest, and you can feel confident buying a USB-PD brick, and those that doubted it have learned that OnePlus didn't skimp on the USB controller on the regular OP7.
From the graph, you can see the flat line at -3 when the screen was off, and how it bounces "up" to -1.7 when it's on.

Can confirm, used my USB PD charger while away last week. Charge from 5ish% to full was around 2 hours. Much quicker than the old standard Microsoft USB C charger I use at home.
Charge time with PD was similar to that with my old mate 20 pro which showed 'fast charging' to indicate PD being used.