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as i suffered around the internet looking for fast charge in oneplus 2.... people had two comments over this issue
1. oneplus didn't bought the liscense from QUALQUAMM for FAST CHARGING...!!
2. oneplus 2 didnt had the hardware support...!!
apart from this these things i also know that the cable and charger isn't enough for fast charging....!!
things to know:
1. cable isn't capable of delivering the necessary power for fast charging... check below
http://www.theverge.com/2015/11/16/9742360/oneplus-usb-type-c-cable-adapter
2. the charger that oneplus provided is a (5v , 2A) charger which common now a days
things that need to tested by the developers:
does the DASH CHARGER work on the oneplus 2..??
CONCLUSION:
If oneplus didn't had the license agreement of QUALLQUAMM QUICK CHARGE last year since due to the money issue or due to the delay of this DASH CHARGE tech which should have came by last year........!!! so now the company has the tech of its own.... so why cant they give an update to the oneplus 2 and allow users to use DASH CHARGE...!
" dont say that ONEPLUS 2 dont have the hardware things.... it has it...."
"IF ONEPLUS give the DASH CHARGE to ONEPLUS 2 over an update it gonna stand till"
i had the same thoughts !! let me have a look at kernel sources released for oneplus 3 ! may i can make it work !
thanks ! will report back soon ! for both hardware and software updates !
How do we know the USB-C port hardware on the OnePlus 2 is designed for 5V/4A? It might be designed only for 5V/2A in which case, using 4Amps will kill the port entirely and ruin the device. Design decisions like these are thought out months before production.
Dash Charge is basically OPPO's VOOC Charging.
The major difference in the USB C port being, is that it contains 7 pins, instead of the standard 5 pin layout. There are two extra power pins. That is why it requires both the adapter AND the cable, while Quick Charge 2.0/3.0 can work with any cable.
So no, it is not going to work with Oneplus 2. It's not a software feature that you can just enable.
ts1506 said:
Dash Charge is basically OPPO's VOOC Charging.
The major difference in the USB C port being, is that it contains 7 pins, instead of the standard 5 pin layout. There are two extra power pins. That is why it requires both the adapter AND the cable, while Quick Charge 2.0/3.0 can work with any cable.
So no, it is not going to work with Oneplus 2. It's not a software feature that you can just enable.
Click to expand...
Click to collapse
There is nothing like what you are saying.....!! It's a software update and a hardware change which is changing the charger and the data cable.... check out the power delivery of the qualquamm quick charger vs the oneplus 2 charger.....
Yes it's a software and a hardware change.
Change your current hardware (phone) for a hardware that support quick or dash charge.
Sent from my ONE A2005 using Tapatalk
what will happen if i charge my one plus 2, whose earlier charger was 5V and 2 Amp and now dash charger is 5V and 4Amp. will it damage my phone.
I have tested the dash charger with the OnePlus 2. Nothing spectuacular happens besides the fact I have topped 2 amps for the first time using the Dash charger. The OnePlus limit for charging is 2 amps. Usually I get 1,2 - 1,8 amps on a regular 2 amp charger. The OnePlus 2 charges a little bit quicker and more stable with the Dash charger, but thats about it. Don't ever expect the same speed as on the 3 and 3T.
Charging current depends on battery level you only get 2A at nearly empty level then drops little by little
Sent from my ONE A2005 using Tapatalk
thiyagatrev said:
as i suffered around the internet looking for fast charge in oneplus 2.... people had two comments over this issue
1. oneplus didn't bought the liscense from QUALQUAMM for FAST CHARGING...!!
2. oneplus 2 didnt had the hardware support...!!
apart from this these things i also know that the cable and charger isn't enough for fast charging....!!
things to know:
1. cable isn't capable of delivering the necessary power for fast charging... check below
http://www.theverge.com/2015/11/16/9742360/oneplus-usb-type-c-cable-adapter
2. the charger that oneplus provided is a (5v , 2A) charger which common now a days
things that need to tested by the developers:
does the DASH CHARGER work on the oneplus 2..??
CONCLUSION:
If oneplus didn't had the license agreement of QUALLQUAMM QUICK CHARGE last year since due to the money issue or due to the delay of this DASH CHARGE tech which should have came by last year........!!! so now the company has the tech of its own.... so why cant they give an update to the oneplus 2 and allow users to use DASH CHARGE...!
" dont say that ONEPLUS 2 dont have the hardware things.... it has it...."
"IF ONEPLUS give the DASH CHARGE to ONEPLUS 2 over an update it gonna stand till"
Click to expand...
Click to collapse
I guess they might have limited the current to prevent overheating. It heats up like hell even without fast /dash charge
If yes, Then let me know which brand of charger should i buy!
No.
I think it only supports QC 2.0, though the QC 2.0 charger does not come out of the box. But imo, who needs fast charging when the battery life can last up to 2-3 days with this phone.
in it's specs sheet in gsmarena quick charge 3.0 is listed. That's why i asked.
anyway, what's the best quick charge 2.0 charger out there? and will that charge the device faster than the original charger?
Jaisun said:
in it's specs sheet in gsmarena quick charge 3.0 is listed. That's why i asked.
anyway, what's the best quick charge 2.0 charger out there? and will that charge the device faster than the original charger?
Click to expand...
Click to collapse
The 625 snapdragon processor does support Quick Charge 3.0, but Xiaomi prohibits using it i guess to cut cost, i know some user who try to use QC 3.0 on this phone but it doesn't work, to be honest i'm also not sure about QC 2.0, my advice is you should try testing it first by borrowing QC 2.0 charger with some of your friends/relatives that has QC 2.0 charger before attempting to buy one.
Flynhx said:
The 625 snapdragon processor does support Quick Charge 3.0, but Xiaomi prohibits using it i guess to cut cost, i know some user who try to use QC 3.0 on this phone but it doesn't work, to be honest i'm also not sure about QC 2.0, my advice is you should try testing it first by borrowing QC 2.0 charger with some of your friends/relatives that has QC 2.0 charger before attempting to buy one.
Click to expand...
Click to collapse
No QC 2.0 support for me, tested with new xiaomi powerbank 10000mAh, ampere show max usb current 500 mAh instead of 2000 mAh. However from measurement I can get 1700-2000mAh so still charging fast enough.
Redmi 4 supports Fast Charging (i.e. about 2A), not any form of Quick Charge. The chipset supports it, but as Xiaomi have decided not to pay Qualcomm the royalties they charge for QC, it's disabled at a low level in the phone. It might be possible to enable it via custom kernel, but I don't think it's been done yet if so.
dels07 said:
No QC 2.0 support for me, tested with new xiaomi powerbank 10000mAh, ampere show max usb current 500 mAh instead of 2000 mAh. However from measurement I can get 1700-2000mAh so still charging fast enough.
Click to expand...
Click to collapse
you mean that from the measurement you're getting a CURRENT reading of 1.700 to 2.000 Amps, right? Because mAh is the capacity measurement while A or mA is the current measurement?
To be on topic, the hardware inside (global version - snapdragon) and the battery support QC v1-3 specs but quickcharge is disabled.
The phone will charge at 1.8A or 1800 mA for about 10 minutes between 20% and 55%. battery capacity.
the current raise up while you changed to a qc 3.0 adapter.
goe2car said:
the current raise up while you changed to a qc 3.0 adapter.
Click to expand...
Click to collapse
CURRENT WILL NOT RAISE ABOVE 2A by now. ONLY VOLTAGE WILL BE INCREASE, but with decreasing current.
I tested a bit :
with QC 3 compactible Aukey PA-T16 charger, Ampere shows 2030mA
with Anker 40W 5 port charger Ampere shows 1830mA.
I have a Redmi 4 (standard edition) and I also have a USB Ammeter/Voltmeter which I can use to measure actual voltage and current flow into the device.
Using a standard 2A charger, the device accepts 4.9-5.1v (average 5.0v) at 1.5A (1500ma), and rarely exceeds this due to the voltage drop of the charger circuit /transformer in the wall plug.
Using a Quick Charge 3.0 charger (Capable of 5v, 9v, 12v and dynamically 5v-12v for QC3.0), I was able to charge the Redmi 4 at 6.2v/2.1A. The peak voltage was 6.24V and peak current 2.4A (momentary).
The Redmi 4 will charge at 6.2v and 2.1A with a Quick Charge 3.0 compatible charger when the battery is totally flat. As with all batteries the current slowly decreases as the internal resistance of the battery increases as it charges.
This is 13 Watts of power, 1.7 times higher than the 7.5 watts provided by the included '2A' charger. Thus, while it does not officially have QC3.0 capability, the device is still able to utilise a slight boost from the chipset's compatibility with higher voltages. Realistically, this means you could cut down on the charge time by around 1/3, and even moreso when charging from, for example, 0%-30%.
I was studying this problem, people charge the phone with QC3.0 chargers and the phone stops charging, what really happens is that the zener diode that has the charging plate for security reasons (stabilizes the load voltage) Stop charging because the zener it's short-circuited (QC gives more voltage than it supports, is designed for 5v, there is QC of 12v or more). A possible solution is to cut the zener. (It works again but without voltage stabilization, it would be better to replace it but it is very complicated).
I leave some images for the one who has the problem and does not get the spare.
There is also a zener diode on the other side, on the motherboard, if cutting the zener in charge plate does not serve, check the motherboard zener.
View attachment usb.zip
deleted
Thanks!
Is this problem occur due to qc 2.0?
Thank you for the tip!
Frenzi2012 said:
I was studying this problem, people charge the phone with QC3.0 chargers and the phone stops charging, what really happens is that the zener diode that has the charging plate for security reasons (stabilizes the load voltage) Stop charging because the zener it's short-circuited (QC gives more voltage than it supports, is designed for 5v, there is QC of 12v or more). A possible solution is to cut the zener. (It works again but without voltage stabilization, it would be better to replace it but it is very complicated).
I leave some images for the one who has the problem and does not get the spare.
There is also a zener diode on the other side, on the motherboard, if cutting the zener in charge plate does not serve, check the motherboard zener.
View attachment 4348127
Click to expand...
Click to collapse
Thank you for the tip!
To get back to life my redmi note3 ... if it were not for you XDA would have lost my device ... because here in Brazil no technician could solve this problem ... thank you and MERRY CHRISTMAS to everyone!:good:
Leo32guarulhos said:
Thank you for the tip!
To get back to life my redmi note3 ... if it were not for you XDA would have lost my device ... because here in Brazil no technician could solve this problem ... thank you and MERRY CHRISTMAS to everyone!:good:
Click to expand...
Click to collapse
happy that it worked, happy holidays!
kaushal64 said:
Is this problem occur due to qc 2.0?
Click to expand...
Click to collapse
Processor support qc2.0 and 3.0 but hardware added by xiaomi not. Use 5v 2A chargers aka Qc1.0
How do you cut the diode?
EDIT: Nevermind, I just used a needle and used it to grind the diode in half. And it worked! Thank you!
animeallen said:
How do you cut the diode?
EDIT: Nevermind, I just used a needle and used it to grind the diode in half. And it worked! Thank you!
Click to expand...
Click to collapse
Perfect!
animeallen said:
How do you cut the diode?
EDIT: Nevermind, I just used a needle and used it to grind the diode in half. And it worked! Thank you!
Click to expand...
Click to collapse
question, do you used a QC2.0 or QC3.0 to burn the diode?
Frenzi2012 said:
question, do you used a QC2.0 or QC3.0 to burn the diode?
Click to expand...
Click to collapse
Can't really answer that question right now since I'm not sure. It was a car charger my brother bought, it was definitely Quickcharge, just not sure which version. I'll let you know once I check.
animeallen said:
Can't really answer that question right now since I'm not sure. It was a car charger my brother bought, it was definitely Quickcharge, just not sure which version. I'll let you know once I check.
Click to expand...
Click to collapse
:good:
Is there any video guide to follow to perform this. My phone is not charging too, all of a sudden.
AravindhStanley said:
Is there any video guide to follow to perform this. My phone is not charging too, all of a sudden.
Click to expand...
Click to collapse
download zip with pictures, someone commented that I cut them with a needle, maybe @animeallen can guide you...
On the other hand, did you burn it with a QC2.0 or 3.0 loader? helps us to prevent, if you can answer the poll better
Frenzi2012 said:
I was studying this problem, people charge the phone with QC3.0 chargers and the phone stops charging, what really happens is that the zener diode that has the charging plate for security reasons (stabilizes the load voltage) Stop charging because the zener it's short-circuited (QC gives more voltage than it supports, is designed for 5v, there is QC of 12v or more). A possible solution is to cut the zener. (It works again but without voltage stabilization, it would be better to replace it but it is very complicated).
I leave some images for the one who has the problem and does not get the spare.
There is also a zener diode on the other side, on the motherboard, if cutting the zener in charge plate does not serve, check the motherboard zener.
View attachment 4348127
Click to expand...
Click to collapse
Not sure but QC 3.0 charger does not charge your device at 9V or 12V until your device too has QC 3.0 qualified hardware(QC 3.0 circuit or equivalent) and software(kernel).
Cases like yours might be due to QC charger quality, which one did you use?
There are many low budget QC 3.0 chargers available like Aukey , Blitzwolf. I have Blitzwolf S9, charge my RN3 with it occasionally. And also I use MI Powerbank 2 (not 2i) for everyday charging and it is QC 3.0 input and output. Cannot check if my Zener diode is shorted but no changes in charging till now.
Charger's QC specialized circuit determine how much voltage (5v or 9v or 12v) and also current (~2A @5v or ~3A @5v or ~2A @9V etc.) should be given to device after detecting phone's charging circuit. So low budget QC 3.0 chargers may cause voltage or current rise.
And for RN3, do not set current (in any kernel) at 2.4A (it will cause damage due heat which is main culprit in long run) , 2A is sufficient but kernels with some ROMs (like NOS 8.1 for me), it charges at 1.4-1.5A. In such case, you can flash other kernels for fast (2A) charging.
My Mi Powerbank 2 charged my phone at almost (2A) in RR, Lineage 14.1 , lineage 15, pixel experience 8.1 roms.
Now in NOS 8.1 it charges at 1.4A in average.
palbadi said:
Not sure but QC 3.0 charger does not charge your device at 9V or 12V until your device too has QC 3.0 qualified hardware(QC 3.0 circuit or equivalent) and software(kernel).
Cases like yours might be due to QC charger quality, which one did you use?
There are many low budget QC 3.0 chargers available like Aukey , Blitzwolf. I have Blitzwolf S9, charge my RN3 with it occasionally. And also I use MI Powerbank 2 (not 2i) for everyday charging and it is QC 3.0 input and output. Cannot check if my Zener diode is shorted but no changes in charging till now.
Charger's QC specialized circuit determine how much voltage (5v or 9v or 12v) and also current (~2A @5v or ~3A @5v or ~2A @9V etc.) should be given to device after detecting phone's charging circuit. So low budget QC 3.0 chargers may cause voltage or current rise.
And for RN3, do not set current (in any kernel) at 2.4A (it will cause damage due heat which is main culprit in long run) , 2A is sufficient but kernels with some ROMs (like NOS 8.1 for me), it charges at 1.4-1.5A. In such case, you can flash other kernels for fast (2A) charging.
My Mi Powerbank 2 charged my phone at almost (2A) in RR, Lineage 14.1 , lineage 15, pixel experience 8.1 roms.
Now in NOS 8.1 it charges at 1.4A in average.
Click to expand...
Click to collapse
For me the chargers detect the snapdragon 650 and send more power, the zener diode must support 10w only( i think no found info), I have comments above saying that they were burned with chargers QC, I'm trying to determine if qc 3.0 or 2.0
Enviado desde mi Redmi Note 3 mediante Tapatalk
palbadi said:
Not sure but QC 3.0 charger does not charge your device at 9V or 12V until your device too has QC 3.0 qualified hardware(QC 3.0 circuit or equivalent) and software(kernel).
Cases like yours might be due to QC charger quality, which one did you use?
There are many low budget QC 3.0 chargers available like Aukey , Blitzwolf. I have Blitzwolf S9, charge my RN3 with it occasionally. And also I use MI Powerbank 2 (not 2i) for everyday charging and it is QC 3.0 input and output. Cannot check if my Zener diode is shorted but no changes in charging till now.
Charger's QC specialized circuit determine how much voltage (5v or 9v or 12v) and also current (~2A @5v or ~3A @5v or ~2A @9V etc.) should be given to device after detecting phone's charging circuit. So low budget QC 3.0 chargers may cause voltage or current rise.
And for RN3, do not set current (in any kernel) at 2.4A (it will cause damage due heat which is main culprit in long run) , 2A is sufficient but kernels with some ROMs (like NOS 8.1 for me), it charges at 1.4-1.5A. In such case, you can flash other kernels for fast (2A) charging.
My Mi Powerbank 2 charged my phone at almost (2A) in RR, Lineage 14.1 , lineage 15, pixel experience 8.1 roms.
Now in NOS 8.1 it charges at 1.4A in average.
Click to expand...
Click to collapse
i using NOS 8.1 with stock kernel and original MI charger 2A 5V, charging speed 1998mA from 10% to 50 % then slowdown to 1600mA aprox and 90 to 100% 600mA aprox
I activated 2.4A option in whatever kernel I used, but I dont rely on it too much.
Primary charger is HTC 1A, only use my Aukey QC2.0 when I need quick refuel. And my phone still rock stable though
Never burned mine out but I have a QC 3.0 charger and when I plug it to the phone it charges at the normal rate of 5v 2A, so I rarely use the QC port on the charger since it's the same as using the stock charger or normal ports, my guess is there are many custom kernels causing this damage, and I think there was one rare miui beta that enabled it at one time, I'm not sure if there is fake QC chargers but I believe real / official ones the circuitry is made by qualcomm and it does a series of checks to see if the device can support it or not-which it never did activate on my QC charger at least (I have a Choetech QC charger that cost around $30), which was pretty costly considering I never got to use the QC feature, but I think it's well built and never gives problems so in a way it was worth it and it's available if I get a device with proper QC support.
https://www.choetech.com/product/usb-charging-station-with-2-quick-charge-3.0-6port-us.html
otyg said:
Never burned mine out but I have a QC 3.0 charger and when I plug it to the phone it charges at the normal rate of 5v 2A, so I rarely use the QC port on the charger since it's the same as using the stock charger or normal ports, my guess is there are many custom kernels causing this damage, and I think there was one rare miui beta that enabled it at one time, I'm not sure if there is fake QC chargers but I believe real / official ones the circuitry is made by qualcomm and it does a series of checks to see if the device can support it or not-which it never did activate on my QC charger at least (I have a Choetech QC charger that cost around $30), which was pretty costly considering I never got to use the QC feature, but I think it's well built and never gives problems so in a way it was worth it and it's available if I get a device with proper QC support.
https://www.choetech.com/product/usb-charging-station-with-2-quick-charge-3.0-6port-us.html
Click to expand...
Click to collapse
kernel can allow charger to pump in high current
many users have faced this
some carelessly do it knowingly
hence, AGNi limits it at max 2100mA no matter how badly users want to use QC currents.
Sent from my Xiaomi Redmi Note 3 using XDA Labs
So i was roaming around on web.. and then accidentally stepped into ifixit teardown of pixel 2 xl.
lazy browsing.. i found an interesting thing..
pixel 2 xl have Qualcomm*SMB1381*Quick Charge 4 IC in it.
ofcourse it support usb pd, which is pixel 2 xl's native charging method..
SMB1381 support qc 4 ( with backward compatibility) , usb c and usb pd charging mechanism.
so now the point of this thread .. why dont we try to enable it?
if you ask why, because we already have faster pd charging.. why bother.. let me give u some quick points.
1) a wider compatibility.. like it can get fast charging from all the way down to qc-2.0 to qc-4.0
2) almost all midrange ( even some low budget phones) have qc -2 + charging mechanism, so you can find a quick charger almost everywhere.
3) almost all good powerbanks support qc. ( but may be only about less than 5% support usb pd)
4) the same applies to wall adapter itself.. almost 95% is qc enabled.. while only 5 % or so support usb pd
5) can reuse all those qc chargers which you keep in dust. or just using as normal charger..
6) last but not least.. you dont have to use usb c to usb c cables.. can use those usb a to usb c cables ( which comes with all new phones) to get quick charge.
so what you guys think?? shd we give it a try?
i am 100% sure that, google have just locked it down by software, ( sony used to do the same on xperia z2 international version.. till i figured it out and unlocked for xda - you can find that somewhere in xperia z2 forums or here - https://youtu.be/8p185UHd4a0 ) . might be.. they never added code for qc in kernel, or even library for qc.. or just didn't enable some kernel module in system folder..
can i get some support??
Quick Charge 4 is compatible with Power Delivery. I don't think a Quick Charge 4 charger will be any faster though. It's just compatible.
https://en.m.wikipedia.org/wiki/Quick_Charge
"Version 4 implements additional safety measures to protect against overcharging and overheating, and is compliant with both*USB-C*and*USB Power Delivery(USB-PD) specifications."
Sent from my Pixel 2 XL using Tapatalk
EeZeEpEe said:
Quick Charge 4 is compatible with Power Delivery. I don't think a Quick Charge 4 charger will be any faster though. It's just compatible.
https://en.m.wikipedia.org/wiki/Quick_Charge
"Version 4 implements additional safety measures to protect against overcharging and overheating, and is compliant with both*USB
Click to expand...
Click to collapse
yes.. i know.. it might not be fast.. but its not the point. the point is making the phone's fast charging compatible with all chargers ... like Qualcomm quick chargers and usb pd chargers and all powerbanks with qc technology.
we cant do dash charge because it requries special hardware. but we can do Qualcomm qc.
Sorry but I think I'm still missing your point. I was saying QC 4 is compatible with PD devices. So what are you wanting to "give a try"? A QC 4 charger with the Pixel 2 XL? It should work fine.
showlyshah said:
yes.. i know.. it might not be fast.. but its not the point. the point is making the phone's fast charging compatible with all chargers ... like Qualcomm quick chargers and usb pd chargers and all powerbanks with qc technology.
we cant do dash charge because it requries special hardware. but we can do Qualcomm qc.
Click to expand...
Click to collapse
Sent from my Pixel 2 XL using Tapatalk
ya.. qc 4 may be.. but not qc 3 or qc 2.0. for now a large amount of devices are supported only by qc 3 or lower.
So, I have finally learned what in my charger makes it fast. It uses the 5V and not the 9V, not sure why there's a 9V if phones use a 5V but I learned that the more amps the faster the charging. Like I currently have a ZTE 1.5A charger and a friend has a 4A dash charger for their OP3. Mine takes over an hour and their's takes a hour at most they claim. So if the V20 supports 3.0 charging, what's the most amps I can use in a charger to get the fastest charging possible? Would it be unsafe if I went to some extreme amount, like would it make my phone over charge and blow up or something?
The total power charged (watts) = voltage x amperage. So its a function of both volts and amps. For the fastest charging get a charger that supports qc3. This is standard that includes both how fast to charge and a signature that the phone and charger support qc3 to actually use the faster charging.
If you get a charger that doesn't support quick charge but some other standard the phone and charger will see that they don't support that other charging standard and charge at a safe slow rate.
The V20 does not support QuickCharge 3.0, that needs to be clear from the start because it causes a lot of confusion. The Snapdragon 820 does have support for the QC 3.0 standard, but LG chose for some reason NOT to support it. What the V20 does support is USB-PD aka Power Delivery which is similar to QC 3.0 in how it operates but it is NOT QC 3.0 (but the V20 does support QC 2.0 without issues with the stock charger).
USB-PD works like QC 3.0 in the sense that it does the charging in a different way that keeps the cells cooler during the charging process and doesn't cause the heat buildup that QC 2.0 causes. The factory LG V20 charger supports QC 2.0 and if you go into the hidden menu (*#546368*<3-digit model number>#, might not work on every variant) and then SVC Menu - Battery Test - Battery Info - select the Enable Log button - check the box for Battery Log Save On/Off and it will then show the relevant info. Once you see the information display, plug in whatever charger you wish and then wait and see what it shows for High Voltage parameter.
If it's QuickCharge it will show the version being used - the stock V20 charger shows me QC2 so that's QuickCharge 2.0. I have a Samsung QC 3.0 compatible charger and when that's attached it shows USB-DCP which from what I understand is Samsung's modified variant of USB-PD but that could be wrong. I did some quick research and found this so it could be limiting the charging to 1.5A which is perfectly fine with me):
Dedicated charging port (DCP) BC1.1 describes power sources like wall warts and auto adapters that do not enumerate so that charging can occur with no digital communication at all. DCPs can supply up to 1.5A and are identified by a short between D+ to D-. This allows the creation of DCP "wall warts" that feature a USB mini or micro receptacle instead of a permanently attached wire with a barrel or customized connector. Such adapters allow any USB cable (with the correct plugs) to be used for charging.
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Click to collapse
That was taken from this page:
https://www.maximintegrated.com/en/app-notes/index.mvp/id/4803
My V20, using the stock Samsung 2A charger that I always use (because I don't like to quick charge my batteries, I don't trust it in any form and I still think it's damaging the cells but that's my own personal opinion on quick charging overall), can go from 15% to 85% (I use AccuBattery set to 85% and it alerts me when it hits that point so I can unplug, this increases the overall lifespan of the cell I'm using as measured in years not per-charge) in about 55 minutes to 1 hour depending on whether I'm still using the device or letting it charge screen off. That's using a plain old vanilla 2 amp capable charger and when I check the charging current sometimes it'll actually show 2.2 amps (2200+ miliamps) so I'm perfectly happy with that situation.
I've read reports from owners of Pixel USB chargers and when they use them with their V20 smartphones and look at the battery info in the hidden menu it will show USB-PD so I might have to get one of those sometime and see how it goes.
Suffice to say, 55 minutes for a 15% to 85% charge for me is fast enough and the battery still stays pretty cool overall. USB-PD is probably the best tech we'll be able to make use of with the V20. I've read that the V30 does fully support QC 3.0 without issues and the the stock V30 charger is QC 3.0 compliant. The new V40 is QC 4.0 ready but I don't know at this moment whether or not the actual stock charger handles it but again, the QC 4.0 support is handled by the SoC and it remains to be seen if LG allows it or forces it to QC 3.0/USB-PD operation. Guess I need to do some research into that aspect of the V40 too.
br0adband said:
The V20 does not support QuickCharge 3.0, that needs to be clear from the start because it causes a lot of confusion. The Snapdragon 820 does have support for the QC 3.0 standard, but LG chose for some reason NOT to support it. What the V20 does support is USB-PD aka Power Delivery which is similar to QC 3.0 in how it operates but it is NOT QC 3.0 (but the V20 does support QC 2.0 without issues with the stock charger).
Click to expand...
Click to collapse
The V20 can support QC 3 with a custom kernel, for example with mk2000 oreo 1.1 beta with a qc3 3 charger it indicates HVDCP_3 (HVDCP is one of the important parts of quick charge)
I've been using exclusively pd or qc3 chargers with my v20 and both properly work, verified with a usb power meter. Qc3 does the little 200mv adjustments as expected. Although to be fair i do run mk2000
br0adband said:
The V20 does not support QuickCharge 3.0, that needs to be clear from the start because it causes a lot of confusion. The Snapdragon 820 does have support for the QC 3.0 standard, but LG chose for some reason NOT to support it.
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Have always doubted whether it was QC 2 or 3 but the log shows QC2.0TA in the service menu. Voltages measured by an inline meter are closer to 9V and around 1.3A (only with screen off) which suggests QC2. Power in shoots up to 15W initially and then drops to 13W and then 11 something W.
QC3 would be closer to 7V something with a higher amp input.. That's what the QC3 power bank used to charge the V20 accepts when charging itself.
This is stock btw, not rooted nor using any roms.
What the V20 does support is USB-PD aka Power Delivery which is similar to QC 3.0 in how it operates but it is NOT QC 3.0 (but the V20 does support QC 2.0 without issues with the stock charger)
USB-PD works like QC 3.0 in the sense that it does the charging in a different way that keeps the cells cooler during the charging process and doesn't cause the heat buildup that QC 2.0 causes.
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I found this interesting and hooked up my 100W laptop usb c charger to the phone and then use a usbc inline meter and found it did quick charge. At the same rate as Qc2. The meter read 8.91V @1.5A . This is surprising as i'd have thought usbc operates at 5V and a higher amperage.
When i looked at battery test screen from the service menu, the item for High voltage TA status reads as OFF. Yet my plugable usb c inline meter records around 13.5W going in with screen off. The voltage was 8.91V 1.5A. That's not USB-PD afaik, which should have said 5 V and a higher current draw. My laptop charger does not do Qualcom quick charge at all, So i'm not sure what is going on here.
I've been wary of using my laptop charger to charge the phone as i'd read an early report that some people had a bootloop problem and it was caused by USB PD chargers.
The factory LG V20 charger supports QC 2.0 and if you go into the hidden menu (*#546368#*<3-digit model number>#, might not work on every variant) and then SVC Menu - Battery Test - Battery Info - select the Enable Log button - check the box for Battery Log Save On/Off and it will then show the relevant info. Once you see the information display, plug in whatever charger you wish and then wait and see what it shows for High Voltage parameter.
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Fixed the code for you, it was missing a # before the * model number
If it's QuickCharge it will show the version being used - the stock V20 charger shows me QC2 so that's QuickCharge 2.0. I have a Samsung QC 3.0 compatible charger and when that's attached it shows USB-DCP which from what I understand is Samsung's modified variant of USB-PD but that could be wrong. I did some quick research and found this so it could be limiting the charging to 1.5A which is perfectly fine with me):
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Interesting, when i hook up a ravpower power bank that is also QC3 comparible i still see QC2. It charges no faster than the stock charger LG includes in the box
I've read reports from owners of Pixel USB chargers and when they use them with their V20 smartphones and look at the battery info in the hidden menu it will show USB-PD so I might have to get one of those sometime and see how it goes.
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Not in my case with a laptop charger, it just reads as OFF.. Do you remember where you read this maybe a link.
However when i use the laptop charger to usb C PD charge my power bank, the meter reads 4.89V 2.77A. That is a usb c PD charge. These are not the figures i get when using the laptop charger with the V20 as indicated above.
USB-PD is probably the best tech we'll be able to make use of with the V20. I've read that the V30 does fully support QC 3.0 without issues and the the stock V30 charger is QC 3.0 compliant. The new V40 is QC 4.0 ready but I don't know at this moment whether or not the actual stock charger handles it but again, the QC 4.0 support is handled by the SoC and it remains to be seen if LG allows it or forces it to QC 3.0/USB-PD operation. Guess I need to do some research into that aspect of the V40 too.
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I have mixed views about USB-PD and its suitability for phones. Laptops have larger cooling areas and so USB PD is fine with them. My laptop has a 100W charger and its charging as i type this and i don't find the laptop gets warm at all. The history with the 6P & First pixel showed people with battery problems and having to replace the battery shortly after a year. Particularly with the 6P. Not heard any problems with the second gen pixel as yet. Maybe its still too early. But even with qualcom quick charge and i use it all the time there should not be any problems with battery after a mere year.
Having said all that in the last post I made, a friend gave me a Samsung EP-TA20JBE charger last night, go figure. It's the first Samsung "fast charger" that I've had and I decided to plug it into my V20 and see what it showed. I know that if you use the Pixel chargers the battery info in the service menu will show USB_PD meaning it's communicating and charging using the Power Delivery standard. My regular Samsung 2A charger - plain old vanilla non-QC compatible straight 2A charger - shows USB_DCP when charging my V20 so that's a known thing; there is no QC support, no PD support, nothing but just pure current provided as requested.
Here's the funny thing:
The Samsung EP-TA20JBE apparently is a QC 3.0 compatible charger, but since it's made by Samsung what I see under the battery info is USB_HVDCP which I've never seen before. So I did research into the USB_HVDCP meaning and of course the HV means High Voltage.
What I discovered is that if you're using a true Qualcomm compliant QuickCharge 3.0 device with a true Qualcomm compliant QuickCharge 3.0 charger, your device should report it's getting QC3.0 under the battery info but that's where the fun begins because non-compliant hardware will just show "USB_HVDCP. Of course, because this is not an LG charger and the sense and communication stuff is not from them, it's falling back to Samsung's version of QC3.0 protocols - but what I discovered is that in such instances it's actually Qualcomm QuickCharge 3.0 in effect, it's just that on non-compliant chargers Qualcomm detects the charging protocol as USB_HVDCP.
So, I ran my V20 down to about 15% using a battery app that forces the device to use nearly 100% of the CPU, that took the better part of 45 minutes or so, and when the phone beeped to alert me it needed charging I stopped the battery rundown app, let the phone sit for about 15 minutes idle so it would cool down, then I plugged in the Samsung USB charger I picked up last night (using my Monoprice 26 gauge USB-C charging cable).
Normally if I charge the device using that Samsung vanilla 2A charger from 15% it will cause my V20 to get warm on the backside because it's pulling the full 2A from the charger and of course it'll get warm. It also takes roughly 55 minutes to about 1 hour solid to go from 15% to 85%, and the phone will stay warm till about 65% when the current pull changes to something lower, maybe 1.5A, and it continues to decline as the actual charge increases and of course the V20 cools down to various degrees (pun intended) as the current pull decreases.
But here's what I noticed using this Samsung USB charger:
I watched the charging indicator (screen off, I use AccuBattery which shows me the current battery percentage on the V20's second screen) and it was literally going up 1% every 35-40 seconds which I had never seen before, all the way to 85%. My V20 remained basically cool to the touch from the moment I plugged in that charger to the time AccuBattery alerted me about the 85% cap - that's what I have it set for to ensure I get a longer lifespan (measured in years) from the OEM LG cell I bought back in August, manufactured in Nov 2017 by the date on the battery.
So, I'm not sure what this all means but based on what I read about Qualcomm and how their chargers ID themselves, if you see USB_HVDCP that is QuickCharge 3.0 under the battery info in the service menu - it's not Power Delivery because the Samsung charger doesn't apparently support that protocol (but I'm not 100% sure on that one).
It's actually honest-to-goodness QuickCharge 3.0, according to the info I read yesterday afternoon, so while I'm still not 100% sure on the protocols or the various naming conventions like USB_PD, USB_DCP, USB_HVDCP, etc (I mean I know what they stand for, sure) and how the V20 identifies the charging protocols and usage, what I can for certain is that for the first time since I've owned my V20, I can charge it with this Samsung USB charger and never feel it get warm at all so for me that's a huge positive. Li-Ion batteries HATE heat buildup, that'll kill their effective lifespan (again measured in years) more than most anything else.
All the vanilla 2A or 1.8A chargers I have cause the phone to heat up during the charging process. I have a Motorola "TURBO" 25 watt QuickCharge 2.0 compatible microUSB charger that I used for testing purposes with a microUSB-to-USB-C adapter and under battery info that identifies as USB_DCP so that's QuickCharge 2.0 (which that particular charger is designed for) and the battery heats up when I use it. This new Samsung charger I just got last night, charges just as fast if not faster and there is NO heat buildup whatsoever that I could detect so, yep, QuickCharge 3.0 even if it's not identifying as QC3.0 under the battery info.
I suppose what I said earlier is now considered moot: the V20 DOES support QuickCharge 3.0, just not with the stock LG charger because it's not a QC 3.0 charger to begin with.
So, yeah, I guess I'll be using this Samsung charger from now on.
br0adband said:
Having said all that in the last post I made, a friend gave me a Samsung EP-TA20JBE charger last night, go figure. It's the first Samsung "fast charger" that I've had and I decided to plug it into my V20 and see what it showed. I know that if you use the Pixel chargers the battery info in the service menu will show USB_PD meaning it's communicating and charging using the Power Delivery standard. My regular Samsung 2A charger - plain old vanilla non-QC compatible straight 2A charger - shows USB_DCP when charging my V20 so that's a known thing; there is no QC support, no PD support, nothing but just pure current provided as requested.
Here's the funny thing:
The Samsung EP-TA20JBE apparently is a QC 3.0 compatible charger, but since it's made by Samsung what I see under the battery info is USB_HVDCP which I've never seen before. So I did research into the USB_HVDCP meaning and of course the HV means High Voltage.
What I discovered is that if you're using a true Qualcomm compliant QuickCharge 3.0 device with a true Qualcomm compliant QuickCharge 3.0 charger, your device should report it's getting QC3.0 under the battery info but that's where the fun begins because non-compliant hardware will just show "USB_HVDCP. Of course, because this is not an LG charger and the sense and communication stuff is not from them, it's falling back to Samsung's version of QC3.0 protocols - but what I discovered is that in such instances it's actually Qualcomm QuickCharge 3.0 in effect, it's just that on non-compliant chargers Qualcomm detects the charging protocol as USB_HVDCP.
So, I ran my V20 down to about 15% using a battery app that forces the device to use nearly 100% of the CPU, that took the better part of 45 minutes or so, and when the phone beeped to alert me it needed charging I stopped the battery rundown app, let the phone sit for about 15 minutes idle so it would cool down, then I plugged in the Samsung USB charger I picked up last night (using my Monoprice 26 gauge USB-C charging cable).
Normally if I charge the device using that Samsung vanilla 2A charger from 15% it will cause my V20 to get warm on the backside because it's pulling the full 2A from the charger and of course it'll get warm. It also takes roughly 55 minutes to about 1 hour solid to go from 15% to 85%, and the phone will stay warm till about 65% when the current pull changes to something lower, maybe 1.5A, and it continues to decline as the actual charge increases and of course the V20 cools down to various degrees (pun intended) as the current pull decreases.
But here's what I noticed using this Samsung USB charger:
I watched the charging indicator (screen off, I use AccuBattery which shows me the current battery percentage on the V20's second screen) and it was literally going up 1% every 35-40 seconds which I had never seen before, all the way to 85%. My V20 remained basically cool to the touch from the moment I plugged in that charger to the time AccuBattery alerted me about the 85% cap - that's what I have it set for to ensure I get a longer lifespan (measured in years) from the OEM LG cell I bought back in August, manufactured in Nov 2017 by the date on the battery.
So, I'm not sure what this all means but based on what I read about Qualcomm and how their chargers ID themselves, if you see USB_HVDCP that is QuickCharge 3.0 under the battery info in the service menu - it's not Power Delivery because the Samsung charger doesn't apparently support that protocol (but I'm not 100% sure on that one).
It's actually honest-to-goodness QuickCharge 3.0, according to the info I read yesterday afternoon, so while I'm still not 100% sure on the protocols or the various naming conventions like USB_PD, USB_DCP, USB_HVDCP, etc (I mean I know what they stand for, sure) and how the V20 identifies the charging protocols and usage, what I can for certain is that for the first time since I've owned my V20, I can charge it with this Samsung USB charger and never feel it get warm at all so for me that's a huge positive. Li-Ion batteries HATE heat buildup, that'll kill their effective lifespan (again measured in years) more than most anything else.
All the vanilla 2A or 1.8A chargers I have cause the phone to heat up during the charging process. I have a Motorola "TURBO" 25 watt QuickCharge 2.0 compatible microUSB charger that I used for testing purposes with a microUSB-to-USB-C adapter and under battery info that identifies as USB_DCP so that's QuickCharge 2.0 (which that particular charger is designed for) and the battery heats up when I use it. This new Samsung charger I just got last night, charges just as fast if not faster and there is NO heat buildup whatsoever that I could detect so, yep, QuickCharge 3.0 even if it's not identifying as QC3.0 under the battery info.
I suppose what I said earlier is now considered moot: the V20 DOES support QuickCharge 3.0, just not with the stock LG charger because it's not a QC 3.0 charger to begin with.
So, yeah, I guess I'll be using this Samsung charger from now on.
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Plain USB_HVDCP is quickcharge 2.0, when its 3 it shows as USB_HVDCP_3 (if you use a custom kernel like mk2000 and a qc3 charger its possible)
What made me think the V20 uses QC3 is the inline meter i used with it said so. This btw is from the stock charger too. But the voltages do not convince me
The voltage between qc2 and 3 are pretty much the same, but 3 has more levels in between the max and min voltage so less energy is wasted.
They're not the same. I remember a post from the HTC 10 forum and that phone comes with a QC3 certified charger and the volts were in the 7 range with higher amps. Which btw is the same as when my ravpower power bank charges with a QC3 compliant but not certified charger
So we still don't have anything absolutely concrete, great.
But as I said, with a QC 2.0 charger (the Motorola TURBO one) my V20 gets quite warm from 15% to 85%.
With this Samsung QC 3.0 charger, it doesn't get noticeably warm to any significant amount from 15% to 85% AND it gets charged faster.
So I have no idea and really just figured "OK, whatever, it charges faster and cooler, I'll use it..." and that's that.