Develop Bugs

Best Charger For GNex (or any USB device)

I've been hunting for an extra, high quality, 2A USB charger for my devices - but I didn't want to pay $25-$30 to get a Samsung or Asus 2A USB charger. And then I came across this blog entry by Ken Shirriff where he went and reviewed 12 different USB chargers including genuine and fake apple chargers + other brands.
http://goo.gl/rym3M
Really good and informative post. Definitely recommend a read. For the Cole's notes version, apple makes great USB chargers ... but not the best. The best USB charger in this review actually turned out to be the USB charger that came with the ill-fated HP TouchPad. This charger has very low noise and voltage drop characteristics.
What's more, you can actually get these great HP chargers for $15 on eBay. Or via Kijiji for $15 if you're in the Toronto area.
Mine is off Kijiji and here are logged screenshots of my GNex charging from 12% to 100% with both the Samsung charger that came with it and the HP Charger.
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FYI, I use this charger for both my GNex and my N7. I've posted OEM vs HP Charger graphs from my N7 here.

I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
It doesn't buzz like the stock one and it doesn't get hot when charging the GNex at ~1A like the stock one does. As well, this charger is capable of handling tablet charging as well. Guess I should have indicated all this in my first post.

RyanTX said:
I see nothing in those graphs that makes me think one is better than the other. The lines are virtually identical, they go from 12%-100% in the same amount of time.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The post is rating the chargers on far more than just how quickly it charges a phone.
Just to add my two cents, anecdotally, before even seeing this post, I was going to say that the touchpad chargers have been the best I've used also. Glad i bought 4 or 5 of them for $5/each when hp went on their firesale binge.

I read that same article and bough two of them months ago for $6. They are great. They do have a slight buzz if you put your ear up to them but nothing like the samsung one. Highly recommend them.

Interesting article. Not really sure what to make of it though, beyond not buying counterfeit chargers?

I've actually got a bunch of those HP chargers for my Gnex. I got them straight from HP for $4 each last summer. Very awesome chargers.

Is it healthy to charge the battery that fast ?

Cupellom said:
Is it healthy to charge the battery that fast ?
Click to expand...
Click to collapse
I think its not.
Sent from my Galaxy Nexus using Tapatalk

Cupellom said:
Is it healthy to charge the battery that fast ?
Click to expand...
Click to collapse
palco2 said:
I think its not.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Well... the battery charges at the same speed for both the stock 1A charger and the HP 2A charger. The device itself regulates how much power it will draw, and drawing 1A from a 2A charger is surely more efficient and will result in a longer lasting and better charger, as well as one that can be used for tablets and other USB devices that want to draw more than 1A. I wonder if you can take the 2A charger and put a USB Splitter or something on there and charge 2 1A devices at the same time... I'd imagine so.

I use my OEM Galaxy S4 charger. It charges all of my devices faster than any other charger I've ever tried.

Quick Charge 4?

Do we know for sure if the Mi 6 supports Qualcomm Quick Charge 4 yet?
The only other phone that has the SD835 SOC is the US Galaxy S8, but it doesn't appear to support QC4.
And details are very scarce about this.

Quick Charge 3.0 http://www.gsmarena.com/xiaomi_mi_6-8507.php

The Galaxy S8 uses qc2.0, that's crazy!

hbbxmjbb said:
The Galaxy S8 uses qc2.0, that's crazy!
Click to expand...
Click to collapse
Yeah. It's disappointing.
But considering what happened last time, I think it's better to be cautious first before proceeding.

BozQ said:
Yeah. It's disappointing.
But considering what happened last time, I think it's better to be cautious first before proceeding.
Click to expand...
Click to collapse
But it seems more Chinese want to buy Samsung,even Samsung thought that the explosion in China was slander last year.

There's a quick review in Mandarin Chinese, with English subtitles.
https://youtu.be/O6Ro4PofaTM
Start watching from 10:30
He says it's bundled with an 18W QC3.0 wall charger.
Here's a screenshot.
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Charges 60% in 30 minutes, and 0 to 100% in 86 minutes, which is quite impressive. And almost on par with OnePlus 3T's Dash Charging.
Although, we don't know if the phone is QC4 compatible if there's a commercially available QC4 charger.

BozQ said:
There's a quick review in Mandarin Chinese, with English subtitles.
Start watching from 10:30
He says it's bundled with an 18W QC3.0 wall charger.
Here's a screenshot.
Charges 60% in 30 minutes, and 0 to 100% in 86 minutes, which is quite impressive. And almost on par with OnePlus 3T's Dash Charging.
Although, we don't know if the phone is QC4 compatible if there's a commercially available QC4 charger.
Click to expand...
Click to collapse
No,Mr.Lei said this phone uses qc3.0.

hbbxmjbb said:
No,Mr.Lei said this phone uses qc3.0.
Click to expand...
Click to collapse
Mr Lei, as in Lei Jun? Xiaomi's CEO?

BozQ said:
Mr Lei, as in Lei Jun? Xiaomi's CEO?
Click to expand...
Click to collapse
Yes,but sometimes Chinese call him Monkey King Lei, because it's difficult to buy the phone they want.

BozQ said:
Do we know for sure if the Mi 6 supports Qualcomm Quick Charge 4 yet?
The only other phone that has the SD835 SOC is the US Galaxy S8, but it doesn't appear to support QC4.
And details are very scarce about this.
Click to expand...
Click to collapse
Here is an article regarding why Xiaomi Mi 6 is using QC 3.0 only: Xiaomi Mi 6 Quick Charge 4.0 - Where Did It Go?

toffzter said:
Here is an article regarding why Xiaomi Mi 6 is using QC 3.0 only: Xiaomi Mi 6 Quick Charge 4.0 - Where Did It Go?
Click to expand...
Click to collapse
Thanks for sharing.
Hmm. 27W. This is the first time I know about QC4's maximum watts.
My guess is 9V/3A?
Sent from my ONEPLUS A3000 using Tapatalk

BozQ said:
Thanks for sharing.
Hmm. 27W. This is the first time I know about QC4's maximum watts.
My guess is 9V/3A?
Sent from my ONEPLUS A3000 using Tapatalk
Click to expand...
Click to collapse
Your guess is as good as mine.

I think it is QC3.0. Check my video, how the charging voltage start at 5.0V then goes up to 6V and 2,8Amps.. really impressive, you can fully charge the Mi6 in 90 mins from 0 to 100%. www.youtube.com/watch?v=iKZZHnF0qWI

It's hovering around just below 18W. That's QC3.0

First the Galaxy S8, then the Mi6 and now the Sony Xperia XZ Premium all dropped QC4, despite featuring the Snapdragon 835 SOC. Something's amiss.
Sent from my ONEPLUS A3000 using Tapatalk

BozQ said:
First the Galaxy S8, then the Mi6 and now the Sony Xperia XZ Premium all dropped QC4, despite featuring the Snapdragon 835 SOC. Something's amiss.
Click to expand...
Click to collapse
Maybe it costs a lot.

BozQ said:
There's a quick review in Mandarin Chinese, with English subtitles.
https://youtu.be/O6Ro4PofaTM
Start watching from 10:30
He says it's bundled with an 18W QC3.0 wall charger.
Here's a screenshot.
Charges 60% in 30 minutes, and 0 to 100% in 86 minutes, which is quite impressive. And almost on par with OnePlus 3T's Dash Charging.
Although, we don't know if the phone is QC4 compatible if there's a commercially available QC4 charger.
Click to expand...
Click to collapse
I have Xiaomi Mi 6 on my hand.
Despite the charger says it can support the voltage of QC 3.0 support. The time I tested it last night, it only pull up to 1650 mA from the charger (didn't see the voltage).
But once I plugged it in on my Aukey charging station in its QC 3.0 port, it can pull up to 3300 mA during charge.
EDIT : nvm, now it can pull up to 3000 mA from the provider charger.

Mi6 just has Q.C 3.0 only

ArcOnFire said:
I have Xiaomi Mi 6 on my hand.
Despite the charger says it can support the voltage of QC 3.0 support. The time I tested it last night, it only pull up to 1650 mA from the charger (didn't see the voltage).
But once I plugged it in on my Aukey charging station in its QC 3.0 port, it can pull up to 3300 mA during charge.
EDIT : nvm, now it can pull up to 3000 mA from the provider charger.
Click to expand...
Click to collapse
Might have something to do with your screen, whether it's on or off.

related generic question...
Why does QC 4 capable phones NOT have QC 4 ?

Where to buy Official LG G6 travel charger with type C usb cable

I was wondering if anyone knows where I can buy and Official LG G6 travel charger with the type C USB cable. My charger has a model number of MCS-H06WP. I looked on LG's website but couldn't find where to buy extra chargers. Also Amazon and ebay don't appear to have them. Please help.

Any quality QC 3.0 charged will work. So will QC 2.0 but won't charge as fast.
Sent from my LG-H872 using Tapatalk

skyfox99 said:
Any quality QC 3.0 charged will work. So will QC 2.0 but won't charge as fast.
Sent from my LG-H872 using Tapatalk
Click to expand...
Click to collapse
Yeah any 3.0 will quick charge your phone. There are plenty on Amazon.

citronbull said:
Yeah any 3.0 will quick charge your phone. There are plenty on Amazon.
Click to expand...
Click to collapse
Is this one any good? Aukey? https://www.amazon.com/AUKEY-Charge...040572&sr=8-3&keywords=aukey+quick+charge+3.0

l33tlinuxh4x0r said:
Is this one any good? Aukey? https://www.amazon.com/AUKEY-Charge...040572&sr=8-3&keywords=aukey+quick+charge+3.0
Click to expand...
Click to collapse
Yup, that will do. Aukey is a good brand.

citronbull said:
Yup, that will do. Aukey is a good brand.
Click to expand...
Click to collapse
Thanks for the quick reply.

I can also recommend dodocool. Had a QC 3.0 for 9 months and it does the job.

Has anyone actually tried using a QC 3.0 charger with a G6 to see if they get quick charging? I have two and none of them quick charge the G6. A QC 2.0 charger does work to fast charge the phone, and I believe that's what the phone comes with.

govtcheez said:
Has anyone actually tried using a QC 3.0 charger with a G6 to see if they get quick charging? I have two and none of them quick charge the G6. A QC 2.0 charger does work to fast charge the phone, and I believe that's what the phone comes with.
Click to expand...
Click to collapse
Phone comes with QC 3.0, phone just doesn't register it as such, yet. There's another thread where someone contacted LG.
Sent from my LG-H872 using Tapatalk

You can also found Qualcomm Quick charge 3.0

skyfox99 said:
Phone comes with QC 3.0, phone just doesn't register it as such, yet. There's another thread where someone contacted LG.
Click to expand...
Click to collapse
No....LG G6 bundled charger which comes out of the box...is a QC2.0 charger...because the max output is 9V. For QC3.0...the output is 12V

[email protected] said:
No....LG G6 bundled charger which comes out of the box...is a QC2.0 charger...because the max output is 9V. For QC3.0...the output is 12V
Click to expand...
Click to collapse
The interwebs would seem to disagree as the specs put maximum voltage upwards of 20v for both versions. Voltage isn't as important as amperage, in this case any way. QC 2.0 and 3.0 share similar voltage ranges, but the difference being 3.0 has smaller "step" ranges. So either will actually have variable outputs in voltage and amperage, but 3.0 gives the phone more control for better efficiency (i.e heat control).
Doesn't necessarily prove or disprove the charger version, but rather just pointing it out.
I would be inclined to agree it is a QC 2.0 based of the charger, being seemingly identical to the 2.0 charger from my LG G5, but the model number is slightly different.
Of course, it's disappointing the phone would not release with QC 3.0 if that's the case since it touted 3.0 compatibility, but I have a marked 3.0 charger that does not register 2.0 on the phone, either, so I wonder. I guess it's not that big an issue, especially since there is supposedly little difference in charge times between 2.0 and 3.0.
Sent from my LG-H872 using Tapatalk

Does anyone know if the charger that came with the Nexus 6P ok to use with the G6?

treezy26 said:
Does anyone know if the charger that came with the Nexus 6P ok to use with the G6?
Click to expand...
Click to collapse
First off, let me say that I know nothing of what comes with the Nexus. I do, however, know enough about chargers to say this:
Yes, any charger should work as long as you have the right cable to fit the phone. If it's not QC certified, of course, it'll charge slower, and if it's amperage is low it'll be even slower, but the Nexus is a new enough phone it shouldn't be too slow.

A variety of LG G6 chargers and cables are available at amazon. You can also look at amazon, 6feet long usb 2.0 type c to a charging cables are available.
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Will this charger fast-charge Pixel 2 XL ?

Will this charger fast-charge Pixel 2 XL if I use it with a type-c to type-c cable ?
http://www.mxonline.com.pk/branded-...-usb-quick-charge-for-iphone-8-x-ipad-macbook
UPDATE: What about this one? https://torumart.pk/product/xiaomi-...-to-c-cable-compatible-latest-apple-macbooks/

I doubt a 1A would

The amperage of the power source must equal or exceed that of the device. Our device is 9V/2A or 5V/3A. This charger is only 2A at 5V. Attempting to use it will cause the components to overheat. In quick fashion you'll burn out the charger at best, or cause a house fire at worst.

pbman1953 said:
I doubt a 1A would
Click to expand...
Click to collapse
Strephon Alkhalikoi said:
The amperage of the power source must equal or exceed that of the device. Our device is 9V/2A or 5V/3A. This charger is only 2A at 5V. Attempting to use it will cause the components to overheat. In quick fashion you'll burn out the charger at best, or cause a house fire at worst.
Click to expand...
Click to collapse
What about the one below:
https://torumart.pk/product/xiaomi-...-to-c-cable-compatible-latest-apple-macbooks/
Also are Qualcomm 3.0 chargers safe to use?

That one provides 3 amps at both 5 and 9 volts. The P2XL only requires 2A at 9V, therefore that charger will safely quick charge the P2XL.
The brand of charger is irrelevant here. The only two things that matter on a charger are the voltage and the amperage. I've already covered the requirements for amperage in post 3 above. The requirements for the voltage are that the voltage of the power source must equal the voltage of the device itself. Unlike the amperage, if the voltage does not match your device will end up permanently damaged.

Strephon Alkhalikoi said:
That one provides 3 amps at both 5 and 9 volts. The P2XL only requires 2A at 9V, therefore that charger will safely quick charge the P2XL..
Click to expand...
Click to collapse
You are referring to this? >> https://torumart.pk/product/xiaomi-...-to-c-cable-compatible-latest-apple-macbooks/
Im currently using the one below and it charges slow as hell...is it even safe to use?
http://www.plugintec.com/surge-qc/
Also this one seems to fulfill the requirements you stated but its usb-a to usb-c instead of usb-c to usb-c. does that matter?
https://www.ishopping.pk/huawei-quick-charger-2a-with-micro-usb-cable.html
Also the one below does 5.0V/2.5A 9V/2A 12V/1.5A....will that work?
https://www.xiaomistore.pk/specs/gid/389

ranasrule said:
You are referring to this? >> https://torumart.pk/product/xiaomi-...-to-c-cable-compatible-latest-apple-macbooks/
Click to expand...
Click to collapse
Yep.
The plugintec device I wouldn't trust, though it apparently is capable of matching the voltage as well as match the amperage. The fact it has variable voltages is not something I've encountered. I would take a multimeter to the USB port on the charger and see what the voltage actually is, as it may not be correct for the P2XL.
The Huawei charger only outputs 2A at 5V, meaning you'd burn it up. The Xiaomi charger only outputs 2.5A at 5V, meaning you would burn it up, although that one would take longer to wear out. What I am not understanding here is why you do not simply get the actual charger. On Amazon they have it for about 20 USD (2,477.92 PKR) and I'm fairly certain they ship worldwide. The only thing you may need would be a plug adapter, if Pakistan doesn't use US standard blade plugs.

Strephon Alkhalikoi said:
What I am not understanding here is why you do not simply get the actual charger. On Amazon they have it for about 20 USD (2,477.92 PKR) and I'm fairly certain they ship worldwide. The only thing you may need would be a plug adapter, if Pakistan doesn't use US standard blade plugs.
Click to expand...
Click to collapse
I would love to get an original one from amazon but the problem is the cost of shipping. If I could get it for 20 USD with free shipping I would go for it in a heartbeat.

I would find a way to do it anyway. It's the only foolproof means of ensuring nothing goes wrong with the device you spent a lot of money on.

using this now to charge my phone. no problem with fast charging.
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https://www.aliexpress.com/store/pr...l?spm=2114.12010612.8148356.23.60546014WzMqFb

I don't think it's only about the volts and amps. QC 3 might have some same profiles as USB PD but USB PD devices can't negotiate the profiles with QC protocol charger's. Someone correct me if I'm wrong.
USB PD is only available on USB-C chargers that support the USB PD protocol.
For the pixel 2xl you need a USB-C PD charger that can do 5V/3A and 9V/2A for rapid charge.

reactor_sa said:
I don't think it's only about the volts and amps.
Click to expand...
Click to collapse
I think you're right about that. I'm only concentrating on volts and amps for safety reasons.

Hello guys, may I know what is max wattage your pixel 2 xls are giving? I believe it's locked at 18W. But due some reason my phone charges blazing fast n shows 27W. I use custom ROM n aukey charger.

psnijjar said:
Hello guys, may I know what is max wattage your pixel 2 xls are giving? I believe it's locked at 18W. But due some reason my phone charges blazing fast n shows 27W. I use custom ROM n aukey charger.
Click to expand...
Click to collapse
It was originally only 10.5W when the first first came out:
https://www.xda-developers.com/google-pixel-2-xl-charging-speed-functionally-capped/
But I think that's changed with updates but I never read any official confirmation of it.
Sent from my Pixel 2 XL using Tapatalk

Question Pixel stand 2

Anyone have any insight on a release date?

Removed as misread title

Maybe Oct. 28th, on the official release date of the phone, but your guess is as good as anyone else's.

The stand is pretty dope, and I can't wait to get my hands on it but so far it looks like it's a TBD without any real solid date. I highly doubt it will be here on the 28th but before the holidays is my expectations.

Was thinking of getting this but the price seems very high. I only charge my phone's over night anyway so don't specifically need a fast charger, although it's nice to have. I'll probably just buy a different wireless charger from Amazon

skimminstones said:
Was thinking of getting this but the price seems very high. I only charge my phone's over night anyway so don't specifically need a fast charger, although it's nice to have. I'll probably just buy a different wireless charger from Amazon
Click to expand...
Click to collapse
True, from what I know it will be the fastest wireless charger on the market... So much so it comes with two fans

Clockedx said:
True, from what I know it will be the fastest wireless charger on the market... So much so it comes with two fans
Click to expand...
Click to collapse
Nope.
OnePlus 8 had wireless charging at 30W and 50W on the OnePlus 9.
I got wireless charger from my OP8 but on pixel it will only do 15W. I got store credit on Google but even after that it will still cost me over 40!
I managed to grab OnePlus charger on Amazon at half price 2 months after release.

Nekromantik said:
Nope.
OnePlus 8 had wireless charging at 30W and 50W on the OnePlus 9.
I got wireless charger from my OP8 but on pixel it will only do 15W. I got store credit on Google but even after that it will still cost me over 40!
I managed to grab OnePlus charger on Amazon at half price 2 months after release.
Click to expand...
Click to collapse
Well that's dope! I gotta find me one! But even than it's a twin cell battery which has two independent charging systems. Will the same 30-50w charging apply to the pixel?
By the fastest wireless charger, I was referencing to the Pixel line of wireless charging which will be up to 23w with the new wireless charger.
*Edited because I'm an idiot and replied multiple times

Clockedx said:
Well that's dope! I gotta find me one! But even than it's a twin cell battery which has two independent charging systems. Will the same 30-50w charging apply to the pixel?
By the fastest wireless charger, I was referencing to the Pixel line of wireless charging which will be up to 23w with the new wireless charger.
*Edited because I'm an idiot and replied multiple times
Click to expand...
Click to collapse
Nope
OnePlus wireless fast charging is proprietary plus pixel hardware does not support this. So using any other wireless charger will limit to 15W

I think any other wireless charger is limited to 12w in the pixels?

Nekromantik said:
Nope
OnePlus wireless fast charging is proprietary plus pixel hardware does not support this. So using any other wireless charger will limit to 15W
Click to expand...
Click to collapse
That's the point I'm trying to make, I'm aware of what others can do but I'm not excited by them. I'm excited to see what the new "Pixel Wireless Charger" will do! If you've bought into the Pixel line of phones, this release is exciting because going forward the Pixel is going to change the game, if.... It's done right! And yes to your point, wireless charging is one key aspect.

Sadly pixel charging always behind others like OnePlus and Samsung.

Nekromantik said:
Sadly pixel charging always behind others like OnePlus and Samsung.
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Pixel 6 Pro vs S21Ultra

I will not be buying the Pixel Stand 2.
I will be using the original Pixel Stand which will do just fine for me.

skimminstones said:
I think any other wireless charger is limited to 12w in the pixels?
Click to expand...
Click to collapse
Yes, only 12W. I posted a link from the 9 to 5 Google article a few days ago in the charger thread.
Here it is again: https://9to5google.com/2021/10/19/pixel-6-tidbits-plastic-top-wireless-charging/