Slow charging on PC - Google Pixel XL Questions & Answers

Not sure if this has happen after the 8.1 update, but on my pixel XL I'm not longer able to get fast charging via usb type c to type c cable. I tried another cable that is known good and still doesn't work.
Factory usb type c cable works from wall outlet to phone. The phone will fast charge. Phone will not fast charge when connecting to pc (usb type c to type c. no adapters)
I tried to factory reset just now. Never unlocked the bootloader on this phone never installed any custom rom.
Safemode still does slow charging
Factory reset still does slow charging
Used SkipSoft Unified Android Toolkit to install drivers - still slow charging
Tried to change device from "charge only" to "transfer files" - slow charging
Any ideas?
Thanks.

that's normal. fast charging doesn't work with a PC, their USB ports charge at a lower rate...

nine7nine said:
that's normal. fast charging doesn't work with a PC, their USB ports charge at a lower rate...
Click to expand...
Click to collapse
It did however did work at some given point. I was able to do fast charging on my pc. motherboard is a x370 SLI Plus from msi.
Edit : never mind you are correct. I was wrong. Thanks for the heads up.

ytv said:
It did however did work at some given point. I was able to do fast charging on my pc. motherboard is a x370 SLI Plus from msi.
Edit : never mind you are correct. I was wrong. Thanks for the heads up.
Click to expand...
Click to collapse
all good. glad u sorted it out...
if you've ever noticed custom kernels that advertise 'USB fast charge' as a feature; those kernels can charge via your PC's USB ports faster.... it still doesn't give you actual fast charging, but it gives it a boost.

Hi guys,
I too experienced this change. My PCs used to charge my Pixel XL quite well, even faster than a wall charger. The phone would say "Charging Rapidly."
Looks like ever since the newest release, my PCs only provide "Charging Slowly."
What's the deal?

gooberphx420 said:
Hi guys,
I too experienced this change. My PCs used to charge my Pixel XL quite well, even faster than a wall charger. The phone would say "Charging Rapidly."
Looks like ever since the newest release, my PCs only provide "Charging Slowly."
What's the deal?
Click to expand...
Click to collapse
I think you are mistaken.... read my posts on the subject. USB ports don't support rapid charging and never have... there is a kernel patch that allows faster charging, but even then, it's still not as fast as a charger.

nine7nine said:
I think you are mistaken.... read my posts on the subject. USB ports don't support rapid charging and never have... there is a kernel patch that allows faster charging, but even then, it's still not as fast as a charger.
Click to expand...
Click to collapse
I am clearly not well-versed in the technological aspects of charging, I'm just telling you what I have seen and experienced with this phone.
- When I plug it into the wall - phone shows "Charging Rapidly....... XX%"
- If I use a crappy charger or regular USB cable - phone shows "Charging slowly....... XX%"
Up until a few weeks ago, my PCs (work and home, same motherboard, same USB-C outlets) would charge it blazingly fast - the same, if not faster than the wall charger.
I even used Ampere app on my phone which showed 1200-1500 mA charing.
Now Ampere shows 310 mA max wtf

gooberphx420 said:
I am clearly not well-versed in the technological aspects of charging, I'm just telling you what I have seen and experienced with this phone.
- When I plug it into the wall - phone shows "Charging Rapidly....... XX%"
- If I use a crappy charger or regular USB cable - phone shows "Charging slowly....... XX%"
Up until a few weeks ago, my PCs (work and home, same motherboard, same USB-C outlets) would charge it blazingly fast - the same, if not faster than the wall charger.
I even used Ampere app on my phone which showed 1200-1500 mA charing.
Now Ampere shows 310 mA max wtf
Click to expand...
Click to collapse
USB 3.x has a Max current of 900mA. that's in the specification... by default, your pixel would still only be using 500mA, but with the kernel patch that I spoke of; it bumps it to 900mA ...
I forget at what capacity, but basically it ramps down charging, after it hits a certain capacity, which might explain the 310mA in Ampere...
i don't know how you possibly could've been getting 1500mA out of a USB 3.x port from your PC, that exceeds the spec by a very large margin... not saying it didn't happen, but AFAIK that shouldn't even be possible.

Related

Anyone else have issues charging via computer USB?

I seem to have an issue that my phone never charges whilst connected via USB to my Macbook Pro. I have also tested on a Windows machine and have the same issue.
I was able to charge my Sensation over USB and I know that one of the ports on the Macbook has a higher output for charging but it makes no difference.
The phone states that it is charging but the percentage charge continues to drop. If I switch the power off it will charge. There doesn't appear to be any big battery drains though. I ran for a day and twelve hours over the weekend and charged at 40 percent.
Has anyone else the same issue?
Btw, I am on stock 4.0.2, rooted but not running anything else that should have any affect
Sent from my Galaxy Nexus using Tapatalk
How old is your macbook pro? Or more to the point, do you know if it has USB 3.0 ports? If your higher output ports are just 2.0 (and your computer is describing them as such compared to the older 1.0 spec) then you are stuck at 0.5A (half of wall charger output). USB 3.0 goes up to 0.9A, but I don't know if there are any catches in terms of devices needing to request the bump.
When you say that it charges if you switch the power off, do you mean it only works if you actually power down the phone? As in, leaving it sleeping plugged in, it still won't charge? Keep in mind that actively using the phone with the brightness turned up high could result in overpowering the .5A current in.
Unless you know someone else with a GN you can test you might just want to take it into the store and have them try it there/consider a replacement if it's defective. Also worth exploring if it's just the battery is defunct, if you have access to another one.
aidanbree said:
I know that one of the ports on the Macbook has a higher output for charging but it makes no difference.
Click to expand...
Click to collapse
Really? Source?
Doing a tad of research it seems some models front (closer to the front) USB port has slightly higher output than the back (closer to the screen) USB port because the back one shares a USB controller with internal components.
It couldn't be noticeable though, they're both simply rated at .5A .
Has anyone else the same issue?
Btw, I am on stock 4.0.2, rooted but not running anything else that should have any affect
Click to expand...
Click to collapse
I charge my 4.0.2 stock GSM Nexus off of my MacBookPro almost every night without issues. Using both an HTC cable and the Samsung cable.
JoeSyr said:
How old is your macbook pro? Or more to the point, do you know if it has USB 3.0 ports?
Click to expand...
Click to collapse
MacBooks don't have USB 3.0. Its always been standard USB 2.0 afaik.
I'd also recommend that OP check different cables and computers, or different batteries if possible.
I have the exact issue. If I charge via USB on ANY laptop/computer it takes forever and if I'm using the phone as it's charging it uses more power than being supplied so it loses battery life even though it's plugged in.
I had this problem on my iPad too. It seems they need more power to charge but can still "trickle" charge off of a standard USB port.
My batter was at 10% last night, plugged it in to my laptop and sent some texts and left the display on (dev settings), about 10 min. latter it was at 4%.
I mean to post this last week!
See the screenshot....Status 'Charging' however as you see from the lower part of the screen, it has clearly stopped charging some time ago (about 3 hours earlier!)
It turns out that the CABLE was the issue....I thought all Micro USB cables were created equal, evidently not
Any ideas what the differences are in micro USB cables and how to identify which ones 'work' and which don't? I bought 10 from ebay which all seem not to charge from USB
I've had no problems charging via my pc using Samsung or Motorola cables. It charges slower but it still works.

[Q] Note 3 charging extremely slowly via USB

Hey all. I finally got my Note 3. I have been using it for a couple of days and, of course, it is awesome. But one thing is troubling me. I charge my phone via my desktop PC, which has several USB 3.0 ports. I first plugged it into the ones on the front, and it wasn't charging very quickly, so I plugged it into one of the back ports, and i'm still having the same problem.
For example, last night, I plugged it in around 1am at about 30%. It's now 7:30am and its at 96%. I would have figured it would be at 100 a while ago. I am using the original Samsung USB 3.0 cable that came with the phone.
I'll have to do a more scientific charging test to see what's going on, but has anyone else seen this?
The supplied charger puts out 2 amps. Which is much higher than any USB port on a PC will ever provide. That's why you're seeing such large disparities with charging rates.
Techngro said:
Hey all. I finally got my Note 3. I have been using it for a couple of days and, of course, it is awesome. But one thing is troubling me. I charge my phone via my desktop PC, which has several USB 3.0 ports. I first plugged it into the ones on the front, and it wasn't charging very quickly, so I plugged it into one of the back ports, and i'm still having the same problem.
For example, last night, I plugged it in around 1am at about 30%. It's now 7:30am and its at 96%. I would have figured it would be at 100 a while ago. I am using the original Samsung USB 3.0 cable that came with the phone.
I'll have to do a more scientific charging test to see what's going on, but has anyone else seen this?
Click to expand...
Click to collapse
A computer's USB 3.0 port is only spec'd to put out up to 0.9amps, compared to 0.5amps for the older USB 2.0, but the A/C charger puts out 2amps, so use that when charging time matters. I never use a computer's usb port for anything anymore except adb sideloading in recovery (where adb over wireless won't work). Note that SOME computers do have non-standard higher amp usb ports, but it's not that common.
ah I was also wondering why the charger itself charges the phone much faster than my desktop. Good info, thanks guys!
I have bought this item from ebay, it work great and charge the phone very fast
http://www.ebay.com/itm/190677630730?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Sent from my SM-N900T using xda app-developers app
Thanks for the responses people. I will use the plug from now on.
The charging speed will definitely slower than..?
It is the normal case that the speed will be much slower when you charge a device such as your Note3 via USB than via DC Power Supply. USB is mainly designed for the communication. The standard charging current of many mobile phones is 1 A or higher. But the highest output current of USB cable is only 0.5 A which could not reach the source demand of a phone. Except for this, we do not recommend charging via USB because the unstable current output can easily reduce the battery life of your Note 3.:laugh:

Zenfone 2 ZE550ML charging super slow via PC USB

Says it takes 7-8 hours sometimes even 10 hours to charge via USB from my PC and with its original charger it goes from 0%-100% in 3 hours, it doesn't have fast charge but it's an OK time to let it charge overnight, why isn't it as fast from PC, anyone else experiencing this?
KuGeL94 said:
Says it takes 7-8 hours sometimes even 10 hours to charge via USB from my PC and with its original charger it goes from 0%-100% in 3 hours, it doesn't have fast charge but it's an OK time to let it charge overnight, why isn't it as fast from PC, anyone else experiencing this?
Click to expand...
Click to collapse
Because the USB standard requires it. Unless a PC/device supports CDP detection/negotiation (rare), no device is allowed to draw more than 500 mA from a USB port.
I'm wondering how you're surprised by this since it's been a requirement of the USB standard for over a decade.
Entropy512 said:
Because the USB standard requires it. Unless a PC/device supports CDP detection/negotiation (rare), no device is allowed to draw more than 500 mA from a USB port.
I'm wondering how you're surprised by this since it's been a requirement of the USB standard for over a decade.
Click to expand...
Click to collapse
I owned a Moto G (1.st Gen) before and it charged exactly as it did from the wall adapter, never knew about that USB standard. At least I've learned something.
Someone told me you have to edit some settings from your device (Kernel Settings (ROOT)) to ''ask'' the PC drain more power from the USB Port.
Here in Japan the ¥100 shop (like a pound/dollar store) sells a little adapter that you put in the USB port that allows you to charge an iPad (normally you can't because 500 mA is insufficient) via a PC's USB port, presumably by increasing output to 1 amp. I suppose that would do the trick for the Zenfone too.
KuGeL94 said:
I owned a Moto G (1.st Gen) before and it charged exactly as it did from the wall adapter, never knew about that USB standard. At least I've learned something.
Someone told me you have to edit some settings from your device (Kernel Settings (ROOT)) to ''ask'' the PC drain more power from the USB Port.
Click to expand...
Click to collapse
Some PCs have what are defined as Charging Downstream Ports (CDPs). Some Android devices can detect these, some can't. Qualcomm's PMICs seem to be more featured in terms of detecting stuff - IIIRC, Qualcomm's PMICs also support detecting "nonstandard" (Apple) chargers.
A lot of developers hack up kernels on devices without CDP detection support to assume a CDP - this is dangerous since you might blow a fuse on a PC/hub that is just an SDP. For example, my monitor's USB ports are all dead thanks to a cheapo Chinese GPS that pulled way more than 500 mA.
For more - see the BC1.2 spec at http://www.usb.org/developers/docs/devclass_docs/

Unreal power draw

Hello
I come to you with an interesting problem.
Recently I flashed my OnePlus 3 with CM13 and the ElementalX kernel. One important thing with this kernel is that it supports dash charging.
I normally don't use dash and just charge my phone via my computer. Today however I noticed that my phone got charged really fast so I looked into it.
This is my first post on XDA so I can't post a screenshot but Ampere showed that I was charging at 1500mA with an AC charger while connected to my computers USB port.
This seems to only occur when the laptop is in sleep mode. Now I'd shrug this off as a designated USB 3.0 charging port, but a) the computer doesn't have any and b) I tried it with a USB 2.0 port and I got the same result.
Once this actually happened when the computer was awake. I plugged in my phone, and the computer gave me the USB device has malfunctioned error but my phone was charging at 1.5A
I am genuinely worried. 1.5 A is alot even IF it were a charging port. Is there something wrong with my laptop or phone. This didn't happen on stock OS btw (coincidence?)
iirc ElementalX includes fast usb charge function
Like the guy said above, it supports fast charging but 900ma max, I had the same thing with my laptop. My phone charged real fast only when it was off. Don't worry ampere is glitched on this phone seems as it shows dash charging to be 1.5A also.

warp charging issue

Warp charging doesn't go beyond 3.5Amps on ampere app causing slow charging rate shouldn't it give close to around 5.2Amps charging speed? Can anybody share their screenshot or is there a issue with my device
kryolyt said:
Warp charging doesn't go beyond 3.5Amps on ampere app causing slow charging rate shouldn't it give close to around 5.2Amps charging speed? Can anybody share their screenshot or is there a issue with my device
Click to expand...
Click to collapse
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Sent from my OnePlus HD1907 using XDA Labs
fast69mopar said:
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Click to expand...
Click to collapse
Yes it was all working before I have earlier got 5.2 to 5.5 amps but from past couple of months it's been fixed at 3.5 amps now, and yes I have been using original warp charger provided and no haven't unlocked or rooted my device, could this be a problem with the device or any other fix for this?
fast69mopar said:
With Warp Charge there are several factors that come in to play. The charger itself, the USB Type-C Cable and your device.
Has Warp Charge ever worked on your device?
When the cable is connected do you see "Warp Charge" displayed on the screen?
Did the Ampere App ever show the maximum 5.9 amps or does it always show a maximum of 3.5 amps?
Are you using the original Warp Charge wall outlet adapter and original USB Type-C Cable?
If Warp Charge was working before, how long has it been since you last saw it work?
Have you modified the device at all?
Click to expand...
Click to collapse
Look that's the Max I get with the official warp charge now, and it's been constant, restarted still no good
kryolyt said:
Look that's the Max I get with the official warp charge now, and it's been constant, restarted still no good
Click to expand...
Click to collapse
That's what I get with stock charger + stock cable.
Edit: I forgot! I have Arter Kernel r54 running on OB2!!
Kollachi said:
That's what I get with stock charger + stock cable.
Edit: I forgot! I have Arter Kernel r54 running on OB2!!
Click to expand...
Click to collapse
Can you look at your oxygen version please, which one are you at?
kryolyt said:
Can you look at your oxygen version please, which one are you at?
Click to expand...
Click to collapse
OB2 = Open Beta 2
Sent from my OnePlus HD1907 using XDA Labs
Bought mine 2019-12 . few days ago (2020-03-30) warp charge stopped working, it still charged, but extremely slow like 40 percent an hour. When it was off i tried plugging in charger, but it started looping, it didn't boot to an animated picture with charging battery, but it still could boot into OS when power button was pressed. Did a factory reset, didn't help. Connecting to pc usb still recognizes it. Had a feeling it was a hardware error. Maybe fast charging module went bad.
Sent it for a warranty repair, got an answer that it will take more time because it was sent for an higher level service. I guess it's quite bad, it could be a motherboard fault.
I read on oneplus forums that quite a few people has a same issue.
Connect it to a pc, see if it is recognized. Mine stopped working & it was a bad USB Car port. It would still slow charge but no warp charge & no windows pc would recognize it connected
Hi! I have the same issue, only difference is that mine is sometimes charging at warp speed and most of the time at 3300 mAh "dash speed". Did you manage to see what the issue was?
vaidas196 said:
Bought mine 2019-12 . few days ago (2020-03-30) warp charge stopped working, it still charged, but extremely slow like 40 percent an hour. When it was off i tried plugging in charger, but it started looping, it didn't boot to an animated picture with charging battery, but it still could boot into OS when power button was pressed. Did a factory reset, didn't help. Connecting to pc usb still recognizes it. Had a feeling it was a hardware error. Maybe fast charging module went bad.
Sent it for a warranty repair, got an answer that it will take more time because it was sent for an higher level service. I guess it's quite bad, it could be a motherboard fault.
I read on oneplus forums that quite a few people has a same issue.
Click to expand...
Click to collapse
had similar issue today .and while charging at switch off system reboot frequently.is there any solution.is it hardware issue or software issue

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