Database Develop

[Q] 15W vs 18W QuickCharge 2.0 Chargers

As we already know, the Bundled Motorola Charger is rated at 15W max, but there are lots of 18W rated Quick Chargers on eBay.
is the 18W chargers significantly faster that the bundled charger?
Thanks.

mflow said:
As we already know, the Bundled Motorola Charger is rated at 15W max, but there are lots of 18W rated Quick Chargers on eBay.
is the 18W chargers significantly faster that the bundled charger?
Thanks.
Click to expand...
Click to collapse
The 18 watts is for future devices. Current devices are limited to 15 watts. Will be same speed as device limits the wattage.

prdog1 said:
The 18 watts is for future devices. Current devices are limited to 15 watts. Will be same speed at device limits the wattage.
Click to expand...
Click to collapse
So because of the Device Limitations, not the QuickCharge 2.0 Limitations?
Found this little note at Qualcomm's Website
"In laboratory tests using a 3300mAh battery1, a Quick Charge 2.0 enabled device went from 0% to 60% charge in 30 minutes"
Based on internal tests charging a 3300mAh battery using a [1] QC2.0 USB wall adapter (9V, 2A)
That is an 18W Charger. Did anybody got a 18W charger to test and compare with the bundled 15W charger?

mflow said:
So because of the Device Limitations, not the QuickCharge 2.0 Limitations?
Found this little note at Qualcomm's Website
"In laboratory tests using a 3300mAh battery1, a Quick Charge 2.0 enabled device went from 0% to 60% charge in 30 minutes"
Based on internal tests charging a 3300mAh battery using a [1] QC2.0 USB wall adapter (9V, 2A)
That is an 18W Charger. Did anybody got a 18W charger to test and compare with the bundled 15W charger?
Click to expand...
Click to collapse
Yes. Limitations of the power management chip which is separate from the Qualcom chip. That is why S6 CPU can still do Quick Charge 2.0 even tho it does not have a Qualcom CPU. This article explains it.
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/
---------- Post added at 01:25 AM ---------- Previous post was at 01:08 AM ----------
I have both Aukey 18 Watt wall and car chargers and see no difference from stock Moto fast charger. They all fast.

prdog1 said:
Yes. Limitations of the power management chip which is separate from the Qualcom chip. That is why S6 CPU can still do Quick Charge 2.0 even tho it does not have a Qualcom CPU. This article explains it.
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/
---------- Post added at 01:25 AM ---------- Previous post was at 01:08 AM ----------
I have both Aukey 18 Watt wall and car chargers and see no difference from stock Moto fast charger. They all fast.
Click to expand...
Click to collapse
so no speed difference between 15 and 18 then..
great, now i just need to find a seller who will ship these Quick Chargers to Australia

If you measure, these chargers output between 13 and 14 W anyway, I own several including the moto and HTC ones, and various party ones. The N6 pulls 9V and a bit more than 1.4A The Shield Tablet used to do 12V but at less current so still about 13-14W.

Found replacement fast charger (UPDATE 8/10/16)

I took a chance for the fun of it and bought a 15 dollar (at the time of writing this) charger from newegg here and it works perfectly. This post took me about 5 minutes to write and i plugged my Mate 8 in a 43% and now it is at 54%. When it plugs in, it even gives me the Fast Charging notification and says so on the lock screen. Highly recommend it, for USA owners only or you will need a converter plug.

I think you need the original hauwei quick charger to get 9v2.4a "quick charge".
Im using a QC 2.0 which should do 9v2a, but do not get "quick charge" message, and using software, only see up to 1.7ah; however with the original charger; I get 2.6ah.
What I also noticed was the with the original charger its goes up to 2.6ah in bursts (from 1.4 to 2.6ah) and not constant, while the QC 2.0 have constant 1.7ah.
Not sure which is faster. Also some cables don't go above 500mah, and some cables do give "quick charge" message on original charger. Ordered USB voltage tester to test more.
Im also looking for source for cheap oem hauwei charger.

HUAWEI HW-059200CHQ with EU plug: https://www.aliexpress.com/item/100...L-Charger-adapter-for-Huawei/32668184405.html

Huawei charger with option for EU or US plug.
http://www.ebay.com/itm/Genuine-9V-...hash=item2a6b21d483:m:mKEdY4PKIJdpJ0H_NQVZoCQ

As long it covers the signed agreement between Huawei (FCP) and Qualcomm QC2.0 to support both standards it should work with our mate 8. It must be a 9V2A , be careful some of those sold on AliExpress may have only one voltage of 5v1a and that won't do any fast charging.

ronnie72 said:
Huawei charger with option for EU or US plug.
http://www.ebay.com/itm/Genuine-9V-...hash=item2a6b21d483:m:mKEdY4PKIJdpJ0H_NQVZoCQ
Click to expand...
Click to collapse
Just got the EU version of this one in, can confirm it's identical to the one that came with my Mate 8 and does proper quick charging.

Amazon Good Replacement Quick Charger
this is compatible for the US..very fast charging..even more so than the original charger the Mate 8 came with..I went from 40% until 67% in just under 15 minutes

so i just got mate 8. as usually everyone need more than one charger. is it true that even a charger with QC 2.0 will not charge our phone as fast as the original charger?
i dont have budget to buy $30 charger - will check ebay later.
---------- Post added at 11:15 AM ---------- Previous post was at 11:12 AM ----------
keyid said:
I think you need the original hauwei quick charger to get 9v2.4a "quick charge".
Im using a QC 2.0 which should do 9v2a, but do not get "quick charge" message, and using software, only see up to 1.7ah; however with the original charger; I get 2.6ah.
What I also noticed was the with the original charger its goes up to 2.6ah in bursts (from 1.4 to 2.6ah) and not constant, while the QC 2.0 have constant 1.7ah.
Not sure which is faster. Also some cables don't go above 500mah, and some cables do give "quick charge" message on original charger. Ordered USB voltage tester to test more.
Im also looking for source for cheap oem hauwei charger.
Click to expand...
Click to collapse
this is copy pasted from someone else reply regarding my question of why QC 2 charger is slower than original huawei.
*************
They both have the same power QC 9V x 2A =18W or 12V x 1.5V =18W compared to Huawei 9V 2A =18 Watts
However for the Huawei Mate 8, the only charger that will give you 18W worth of charging power is the Huawei SmartPower charger. Anything else charges it at 10W maximum.
And the Huawei SmartPower charger can only charge other devices at 5V 2A = 10W as well. It only switches up to 9V when it sees a Huawei chip inside the other device.
So it's not 12V 1.5A being 0.5A less than 9V 2.0A - Power is Volts multiplied by Amps.
On that particular phone, if you use a Huawei charger you get 18W. If you use ANY non-Huawei charger, you get 10W.
If the battery capacity is 4000mAh at nominal 3.7V, and the charging circuit is 80% efficient then you need to chuck (4 x 3.7 / 0.8) = 18.5 Watts of power into it to charge it. An 18W charger will do that in just over an hour. A 10W charger will take 1.85 Hours which is almost double the time.
****************

Keep in mind that fast charging wears out the battery more than regular charging. If you have time, use a normal charger with lower current.

Bah, what doesnt wear out a lithium battery? Fast charge on, we can all get replacement batteries for this thing. theyre cheap anyway.

Dash Charge Oneplus 3 Charger & Cable on mi 8

Hi ! I had 2 charger for my Oneplus 3 and cable usb type -c ( I had 3 cable usb type-c ugreen too but no charger)
Can I use my Dash charger with my mi 8 ? I had buy a mi 8 and receive it tomorrow global version with EU charger but don't know wich charger it Qc 3.0 or 4.0 ? And with my oneplus Dash charge is 5v 4amp can work on mi 8 or do buy another charger ? Thank you

ggkameleon said:
Hi ! I had 2 charger for my Oneplus 3 and cable usb type -c ( I had 3 cable usb type-c ugreen too but no charger)
Can I use my Dash charger with my mi 8 ? I had buy a mi 8 and receive it tomorrow global version with EU charger but don't know wich charger it Qc 3.0 or 4.0 ? And with my oneplus Dash charge is 5v 4amp can work on mi 8 or do buy another charger ? Thank you
Click to expand...
Click to collapse
it will charge at normal speed. I tried myself with original oneplus car dash charger, no fast charging for Mi8.

lockmunk said:
it will charge at normal speed. I tried myself with original oneplus car dash charger, no fast charging for Mi8.
Click to expand...
Click to collapse
Ok thanks. I can use it no mistake but slow. I think buy a qc 3 or 4 it's good. For car I have too dash car and it's so good I loose it. I have car charger qc 2 or 3 I don't know.
Thanks

Rommco05 said:
DASH charger is good for OP, strange for others. Highly not recommended to use DASH on other devices than OP
Click to expand...
Click to collapse
Why not?
It is a very good 5V charger, with Xiaomi you can expect up to 2A current, not more. Perfectly safe to charge anything, however not quickest charging option for others.

Rommco05 said:
RIP battery. Do u think it is good charging phone with no original charger? Especially with OP DASH
Click to expand...
Click to collapse
Bull*hit....
Dash charging just doesnt work on mi8, normal charge will not cause any damage on any other phone or their battery.
you do not necessarily need a original charger from your phone manufacturer.
The phone negotiate how much power the battery gets not the charger ... the charger slows down the load balance to 2,4A (2,4A*5V=12W)
With a 2,4A output you'll reach ~12W at peak due to cable limitations you'll get 10w
QC 3.0 reach ~ 18 watt on peak with variable voltage and ampere steps. (3,6 - 20v)
Same on Dash Charge, Dash uses variable voltage and ampere steps like QC but doubles the charging lanes.
You can charge your phone with any charger you get, the worst you can get is slower charging speed.

tomsag said:
Why not?
It is a very good 5V charger, with Xiaomi you can expect up to 2A current, not more. .
Click to expand...
Click to collapse
Bull****, the original MI 8 charge is QC 3.0 and I'm getting up to 3.3A on it.
It's very fast..
---------- Post added at 10:39 AM ---------- Previous post was at 10:36 AM ----------
Flash-User said:
Bull*hit....
Dash charging just doesnt work on mi8, normal charge will not cause any damage on any other phone or their battery.
you do not necessarily need a original charger from your phone manufacturer.
The phone negotiate how much power the battery gets not the charger ... the charger slows down the load balance to 2,4A (2,4A*5V=12W)
With a 2,4A output you'll reach ~12W at peak due to cable limitations you'll get 10w
QC 3.0 reach ~ 18 watt on peak with variable voltage and ampere steps. (3,6 - 20v)
Same on Dash Charge, Dash uses variable voltage and ampere steps like QC but doubles the charging lanes.
You can charge your phone with any charger you get, the worst you can get is slower charging speed.
Click to expand...
Click to collapse
What he said.

Rommco05 said:
I see, probably u never heard about optimization, calibration and testing btw and that's isn't about fast or slow charging
Click to expand...
Click to collapse
OKay its just your opinion but my opinion is you have no insight in electrical topics or the insight of such an charger.
optimization - the charger doesn't overcharge or use an overvoltage on your phone when its not support their specific fast charge technology it simply slow down to 5v - max. 2.4A, these charging speed will never cause any damage on your phone.
its just simple: an QC phone doesnt use the benefits of SuperCharge technology or Dash Charge and vize versa....
And trust me i've done more calibration and testing in USB charging topics and their different Charging tecnologys as you think (mobile batterys, chargers and so on).
I had several phones and several chargers and compared nearly all of them (QC, FastCharge, VOOC) and there is absolutely nothing dangerous to charge a phone with a QC charger if it is a supercharge phone.
But .... you ever can prove the contrary. I'll never stop learning but you have to tell me some facts.

65W charger on X2 Pro

Will the 65W charger from the Reno Ace charge the realme x2 pro faster than the standard 50W?

chipcamel said:
Will the 65W charger from the Reno Ace charge the realme x2 pro faster than the standard 50W?
Click to expand...
Click to collapse
This was tested here:
https://www.youtube.com/watch?v=3nl5vyesUVE
It appeared to make a very small improvement. I'd suspect it's mostly down to the efficiency of the newer adapter. In practice the difference between supervooc 50W and 65W seems pretty low (far less than 15W).

Can it be charged with a 5 volt charger?

The phone need to be capable to take 65 Watts. Charger rating only says it is capable of delivering the said charge but if the phone is not rated or designed to take the charge then there is no use. so a 65W charger can be used by a 5W max rated phone and the phone gets charged only at 5W though using a 65W charger

phileps said:
Can it be charged with a 5 volt charger?
Click to expand...
Click to collapse
yes, of course... 5V2A(10W)
and qualcomm qc2.03.0 (9V2A, 18W) also
---------- Post added at 10:24 AM ---------- Previous post was at 10:09 AM ----------
firoz3321 said:
The phone need to be capable to take 65 Watts. Charger rating only says it is capable of delivering the said charge but if the phone is not rated or designed to take the charge then there is no use. so a 65W charger can be used by a 5W max rated phone and the phone gets charged only at 5W though using a 65W charger
Click to expand...
Click to collapse
Exactly!!! we need to check if the 2.0-65W charger is charging at 65W or 50W.
This can be done using engineer mode (*#899#), and check if is using 10V5A (50W), or more 65W (13V5A). Taking into account that max power is only used when the battery is near 0%... as it is being charged, 70%, 80% intensity decreases down to 1.2A...
I,ve asked to have a new Youtube video...
Thanks,

Stanz3k said:
This was tested here:
It appeared to make a very small improvement. I'd suspect it's mostly down to the efficiency of the newer adapter. In practice the difference between supervooc 50W and 65W seems pretty low (far less than 15W).
Click to expand...
Click to collapse
It seems to me that it at least charges at 50w. The question is, where can we get the official chargers?

But will it degrade your battery health?, sorry im new in this, thanks

Does Realme x2 Pro support Supervooc 2.0 (65W)

Hi guys I am looking at getting a second power Adapter for my phone, I can buy the new Supervooc 2.0 here in my country (Indonesia) I was wondering whether this phone support the new 65w Supervooc 2.0 ?
Supervooc 2.0 was introduced with the new Oppo Reno Ace (Practically same hardware besides camera and Gorilla Glass 6 on the front.)

Menahjatwa said:
Hi guys I am looking at getting a second power Adapter for my phone, I can buy the new Supervooc 2.0 here in my country (Indonesia) I was wondering whether this phone support the new 65w Supervooc 2.0 ?
Supervooc 2.0 was introduced with the new Oppo Reno Ace (Practically same hardware besides camera and Gorilla Glass 6 on the front.)
Click to expand...
Click to collapse
Doubt it supports the 65w charger but who knows

The X2 Pro charges at SuperVOOC 2.0 announced speeds anyway:
To our surprise, Realme's advertised 35 minutes of 0 to 100% turned out to be conservative. Get this, the 4,000 mAh battery charged from flat to 100% in just 30 minutes.
Click to expand...
Click to collapse
https://www.gsmarena.com/realme_x2_pro-review-2012p3.php
And even then 30 mins vs 35 mins isn't a big difference.

You will probably need a usb charging monitor to test it out. Given they both charge at 5a, you will need to see if you get 13v instead of 10v at low battery level.

acyg said:
You will probably need a usb charging monitor to test it out. Given they both charge at 5a, you will need to see if you get 13v instead of 10v at low battery level.
Click to expand...
Click to collapse
That's what I thought but the Supervooc 2.0 pushes it to 6.5a instead of 5a. Do you think the charging cable that comes with Oppo Reno Ace is different compared to Realme x2 Pro ? Wouldn't the cable has to be able to charge more than 5a to rips the potential of the Adapter?

acyg said:
You will probably need a usb charging monitor to test it out. Given they both charge at 5a, you will need to see if you get 13v instead of 10v at low battery level.
Click to expand...
Click to collapse
I have tried a usb test and didn´t work with original Realme X2pro Supervooc charger. (it works with qc 2.0 y 3.0)
Instead I have used the built-in Engineer Mode (*#899#) and I´ve confirmed the 10V 5A charge (near 0% 5A, 60% 4A, near 100% Intensity goes down to 1.2A)
---------- Post added at 09:47 AM ---------- Previous post was at 09:42 AM ----------
Menahjatwa said:
That's what I thought but the Supervooc 2.0 pushes it to 6.5a instead of 5a. Do you think the charging cable that comes with Oppo Reno Ace is different compared to Realme x2 Pro ? Wouldn't the cable has to be able to charge more than 5a to rips the potential of the Adapter?
Click to expand...
Click to collapse
What I can say is: if you are not using the original realme cable (yellow usb) the supervooc charger (50W) wont work at 10V5A, it works at 5V2A (10w max). then, it is preferably to use a qc2.0 adapter than gives at least 9V2A (18w)

So if I use Dash/Warp Cable I would be able to activate Supervooc? Since those cable are pretty much the same technology?

Menahjatwa said:
That's what I thought but the Supervooc 2.0 pushes it to 6.5a instead of 5a. Do you think the charging cable that comes with Oppo Reno Ace is different compared to Realme x2 Pro ? Wouldn't the cable has to be able to charge more than 5a to rips the potential of the Adapter?
Click to expand...
Click to collapse
Have you tried the 65w charger?
Has anyone tested it using a usb current reader?

subhani said:
Have you tried the 65w charger?
Has anyone tested it using a usb current reader?
Click to expand...
Click to collapse
Yes I have tested it with the 65W Charger the first 15 minutes I was up to 62% then it twinkles down so I end up reaching 100% just under 28 minutes. Mind you the Supervooc 2.0 (65W) only came with the Adapter so I was using the normal Supervooc cable.