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Does anyone know why does my phone always overheat when I charge it? My wifi is off, and basically killed all my running apps.
This doesn't happen on my friend's nexus one.
By the way, I'm on FRF91 at&t. Anyone mind helping me with this? It would be greatly appreciated.
Sent from my Nexus One using XDA App
What do you mean by overheating? Like turns off, bursts into flame, "feels hot"?
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Click to expand...
Click to collapse
Why does a usb cable heat up more than a "rapid charger" i thought the usb charged half as fast.
It would be logical to assume that less energy would produce less heat,
Please explain
Mine was also cooking on the charger. But after I switched to undervolted kernel the heat is not as high anymore.
android01 said:
Why does a usb cable heat up more than a "rapid charger" i thought the usb charged half as fast.
It would be logical to assume that less energy would produce less heat,
Please explain
Click to expand...
Click to collapse
I believe that the reason would be that USB has constant current, while rapid charger "pulses" the current, making the charging much more effective.
Sindroid said:
Mine was also cooking on the charger. But after I switched to undervolted kernel the heat is not as high anymore.
Click to expand...
Click to collapse
How do you undervolted the phone?
The temperature of my phone can go up as hot as 41C when I'm using the wall charger. But I charged it using the USB cable, it does not get hot at all.
So, is it possible that my wall charger is broken?
Only 41C? Don't worry about it then.
krad1992 said:
How do you undervolted the phone?
The temperature of my phone can go up as hot as 41C when I'm using the wall charger. But I charged it using the USB cable, it does not get hot at all.
So, is it possible that my wall charger is broken?
Click to expand...
Click to collapse
41C is nothing to worry about really. You should only be concerned if it went over 60C and even then it's mostly the battery that's paying the price.
Ah well... All my previous phone never reached that hot when it's charged.
I'm relieved that it's normal to reach 41C when charging then.
Thanks guys.
Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
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Click to collapse
No, there's not............ Sheesh.
khaytsus said:
No, there's not............ Sheesh.
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Click to collapse
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Also check out the Li-Ion Battery guide, krad1992.
I also noticed that the phone gets a little hot when charging it. But I think that is natural. Also, it wasn't as extreme as you put it, where it would "overheat," instead I could notice that the phone was warmer when placed in the hand, especially in the lower bottom corner. But it never overheats...
If the heat worries you, you could always installed SetCPU (on a rooted device, of course) and set a profile to scale the processor speed down when charging, and I believe the newer versions of that app even let you set a different profile for charging via USB versus AC.
Quelltextfabrik said:
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Also check out the Li-Ion Battery guide, krad1992.
Click to expand...
Click to collapse
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
I'm not disagreeing that your phone gets hot when charging with a slow charge, but your assumptions are total nonsense and it's not normal.
Maybe you have some software doing something weird when USB is plugged in charging.. Ever tried shutting the phone down and plugging it on USB and seeing if it also gets hot?
khaytsus said:
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
I'm not disagreeing that your phone gets hot when charging with a slow charge, but your assumptions are total nonsense and it's not normal.
Maybe you have some software doing something weird when USB is plugged in charging.. Ever tried shutting the phone down and plugging it on USB and seeing if it also gets hot?
Click to expand...
Click to collapse
That might be a little harsh...
My phone ALWAYS gets hotter charging from USB (and especially from a USB cable plugged into a non-HTC 1, 1.6 or 2A wall charger).
The phone detects whether it should be in AC or in USB mode based on whether it a couple of the pins are shorted in the cable (this has been confirmed by people taking hotknives to their chargers). If it detects USB mode, it only draws about 450mA. In AC mode (thus, if it sees shorted pins, like in the stock HTC chargers), it'll draw somewhat (slightly) less than 1A.
I think that imperfect quality control or imperfect engineering on the phone might cause some drawn current to escape as heat when in USB mode, but not to while in AC mode.
This does not (at least for me) seem to be a software issue, because I have seen the EXACT SAME BEHAVIOR on CM 5.0.5, CM 5.0.6, CM 5.0.7(.x), CM 5.0.8, FRF50, FRF83, FRF85b, FRF91 and CM6 (both nightly and RC1). I've tried out dozens of kernels, and the problem seems to be a LITTLE better on more fiercely UC'd versions.
Plugging into USB and charging ALWAYS causes my phone to become warm or hot to the touch (after 30min to 1Hr, of course). After a good while, temps go on up to 34-39 on USB, with very little user activity or screen use, versus 29-32 when in AC mode. I have never had the slightest PROBLEM linked with this issue - that level of heat just isn't bad for something designed to work in the sun, sit in your pocket all day, etc.
I can confirm that this is also a problem on an HTC Desire - both the IDIOTIC self-limiting AC/USB regulator and the heat-while-charging-USB issue.
The AC/USB logic used by the phone is the most user-unfriendly thing I've ever seen on a phone, because it is MUCH too strict. It is solely designed to get you to buy "official" HTC fast chargers, rather than letting you use third party gear.
My Milestone would charge (and draw) fast from any old wall bump that could feed enough juice. iPhones do it. My BlackBerry Bold would draw well over 1A and fully charge in less than an hour off of anything that fed enough juice. But my fantastic "superphone" can't do this? That is really the ONLY thing I don't like about the N1 - and it will probably stop me from ever buying an HTC phone again, since I have confirmed exactly the same behavior on other models. Here's why:
If my wife and I travel with our kids, with multiple USB-charged and powered devices, I either have to bring both my US-only N1 charger AND an adapter (we live in France) PLUS another USB source (like a 2-in-1 or a 4-in-1) and cables, OR I can just bring the other source and count on 7 hours a day with my phone plugged into the wall, since 450mA is crap. And all of this is because HTC wants me to buy and use their chargers - which do not accept USB plugs like Moto's, Apple's, third-party, etc.
Quelltextfabrik said:
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Click to expand...
Click to collapse
Well. Mine is the other way round. When I charged it with my USB cable, it doesn't get hot at all. But, it gets very hot when I charge with the wall charger.
Sent from my Nexus One using XDA App
Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=727067
You voted yet? My results from today are even lower than that of yesterday, but my house is colder than my office.. Wife likes it frigid.. 27C charging on USB today.
Maybe you are using the phone while it's being charged, thus using the processor and producing heat?
I can leave mine on all day, and it doesn't get any hotter than a regular phone being charged. But if I have the OLED on and using processor, then it gets a little warmer.
The hottest I've seen mine get of 47 c, and that was because I was outside at the pool and the sun was killing it lol.
khaytsus said:
http://forum.xda-developers.com/showthread.php?t=727067
You voted yet? My results from today are even lower than that of yesterday, but my house is colder than my office.. Wife likes it frigid.. 27C charging on USB today.
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Click to collapse
I avoid charging via USB because the phone get's too hot for my taste. But I tried just now and it's around 39 °C in an ambient temp of around 23 °C.
khaytsus said:
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
Click to expand...
Click to collapse
Though your slightly unkind post was answered sufficiently by big_adventure, I'd like to add something.
I suspect we both don't know how the input circuit of the Nexus One is designed, so it's pure speculation when we talk about how the power input is handled. HTC can be quiet fast with their hardware iterations, so we might even have different revisions.
But, the Nexus Ones Li-Ion needs a current of 1.4 A (1 C) until 4.2 V cell voltage are reached, ideally. The power the AC wall charger delivers fits in quiet well with almost no transformation. The maximum current the USB port can deliver is way out of the ideal range so there's the need for some more sweet magic in the circuits. And sweet electronic magic is connected to releasing heat.
However the input circuit is designed, there are definitely differences how the input of both charging methods is handled, causing varying levels of heat increase. Depending on what the engineers chose as their bias point. Tolerances have impact, of course and hardware revisions might have changed things. I'd like to be more specific but I have never designed a mobile phone charging circuit nor do I intend to disembowel my N1 for the sake of an argument
Caution: You may find speculation and assumptions but no FUD
Take care.
For cryin' out loud, I'm tired of watching my battery drain while plugged into the supplied USB charger. It's ridiculous. I've never owned a portable device that discharged under normal use when plugged into its supplied AC adapter. If I want to spend 15 hours a day playing Angry Birds, it should be possible when I have a power source which is virtually unlimited. Twice, I've started the day with a full battery, had the device plugged in to the supplied 2 amp charger all day, and had <10% left on the battery when I went to bed. (No, I don't actually play Angry Birds for more than a few minutes at a time but I do use the device a lot.)
jtown said:
For cryin' out loud, I'm tired of watching my battery drain while plugged into the supplied USB charger. It's ridiculous. I've never owned a portable device that discharged under normal use when plugged into its supplied AC adapter. If I want to spend 15 hours a day playing Angry Birds, it should be possible when I have a power source which is virtually unlimited. Twice, I've started the day with a full battery, had the device plugged in to the supplied 2 amp charger all day, and had <10% left on the battery when I went to bed. (No, I don't actually play Angry Birds for more than a few minutes at a time but I do use the device a lot.)
Click to expand...
Click to collapse
I don't have that problem. You do know that your device will wait till it drops some percentage before it starts charging again. It won't keep it at 100% the whole time... Is meant to conserve your battery life
smartadmin said:
I don't have that problem. You do know that your device will wait till it drops some percentage before it starts charging again. It won't keep it at 100% the whole time... Is meant to conserve your battery life
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Click to collapse
Let's pretend I've got just a little experience with portable devices. The standard is to float between 95 and 100% charge and just call it "charged" once it's bounced off 100% the first time.
Here's a test you can do that requires no time on your part. Set it up to play a long movie while it's plugged in. Look at the charge level after it's been going for a couple of hours. And you don't have to take my word for it. I'm hardly the only person complaining that the supplied charger is not capable of keeping up with the device's power requirements.
If you are seeing power drop during normal use while plugged in I'd talk to Google. You may have a defective unit. Mine doesn't do that and I regularly see 20+ hour days with normal use unplugged and usually with some video, browsing, games etc.
Take note off when you see the drop, how much you lose over a given amount off time and call Google and see if this is expected. I'm sure they will help. They have been very responsive when I've called.
Sent from my Nexus 10 using Tapatalk 2
groaner said:
If you are seeing power drop during normal use while plugged in I'd talk to Google. You may have a defective unit. Mine doesn't do that and I regularly see 20+ hour days with normal use unplugged and usually with some video, browsing, games etc.
Take note off when you see the drop, how much you lose over a given amount off time and call Google and see if this is expected. I'm sure they will help. They have been very responsive when I've called.
Sent from my Nexus 10 using Tapatalk 2
Click to expand...
Click to collapse
I will watch like 1 hour of Streaming Vid's and loose like 4-5% while plugged in.
100% brightness causes my device to use more power then what's being supplied from the wall charger, and a few other people have confirmed similar incidents as well.
Max your brightness, and then go play a 3D game, while being plugged into the wall charger, and watch the percentage drop still
My tablet lasts a few days at least before needing a charge. I plug it in over night and it charges to full. I couldn't be more happier with it considering it is not self-sufficient.
Mine drops a few % per hour in use with the stock charger connected. Brightness at 50%, WiFi on, BT off. I'm not going to whine about it, but its the only thing that's not great with this tab.
Sent from my Nexus 10 using XDA Premium HD app
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
I've read on an Ipad forum that about 10-15 hours charging are normal (the Ipad 4 has a 42,5Wh battery), and their chargers give as much Watt as our Nexus chargers.
One thing is clear, you can't increase the voltage. That would kill your Nexus right away.
My Samsung charger I recieved with my Nexus 10 says 5V out and 2A.
5*2= 10W.
Isn't that the same rates that other tabs have, even if they got special chargers?
So, the only thing the POGO-charger could raise, is the amount of current.
Even if you had a 10A charger, if the Nexus cant use more than 2A, it wouldn't get anymore amps than 2.
If the kernel on the Nexus doesn't support any higher charger rates, then you cant change anything.
There is a reason why the manufacturers have set 5V as standard - to make it work together with USB.
Battery Specs: Samsung Li-Ion 3.75V 22.75Wh 9000 mah.
So, it's easy. If you had a 1W charger, it would take 22,75 hours to get a fully charged battery.
In theory, it should take 2,75 hours to fully charge the Nexus 10 battery, but we don't turn it off, we use it while charging, it uses background sync and I dont know what the efficiency rating is on the charger or the Nexus.
You know you could feel some heat on the back of the Nexus 10 after some usage?
That's some of the battery's energy that spoils into heat, meaning that there are power losses.
It's normal though, we don't have anything yet on earth that could convert 100% energy from one form to another.
You could compare it to a car, you need a cooler-system to remove the excessive heat from the engine.
Even if your Nexus is far more efficient.
Olaeli said:
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
I've read on an Ipad forum that about 10-15 hours charging are normal (the Ipad 4 has a 42,5Wh battery), and their chargers give as much Watt as our Nexus chargers.
One thing is clear, you can't increase the voltage. That would kill your Nexus right away.
My Samsung charger I recieved with my Nexus 10 says 5V out and 2A.
So, the only thing the POGO-charger could raise, is the amount of current.
Even if you had a 10A charger, if the Nexus cant use more than 2A, it wouldn't get anymore amps than 2.
Click to expand...
Click to collapse
Please do not speculate about how much current can go through the pogo connection. Speculation is worthless and helps nobody. The fact that the included charger only puts out 2 amps probably has to do with limitations of the USB connection. But I'm speculating. See how pointless that is? The fact that one connection is limited to 2 amps doesn't mean all power connections are limited to 2 amps.
And where did I say anything about increasing the voltage? I'm not an idiot and didn't suggest such a stupid thing.
As for temperature, that can easily be monitored during charging and the current can be reduced if it gets too high. You are aware that there is a temperature sensor for the battery, right?
None of which has a darn thing to do with my opinion that it's unacceptable to produce a device that uses more power than it can get from its AC adapter. If there really is no way to run the Nexus 10 at full tilt without supplementing the AC adapter with battery power, Samsung should have addressed that problem before going into production with this unit. This isn't a $150 entry level device. It's the Android flagship.
Olaeli said:
Why do everyone seems to think that the POGO-charger would be able to charge the Nexus faster?
Click to expand...
Click to collapse
A person that supposedly has said charger mentioned that it seemed to charge faster.
jtown said:
Please do not speculate about how much current can go through the pogo connection. Speculation is worthless and helps nobody. The fact that the included charger only puts out 2 amps probably has to do with limitations of the USB connection. But I'm speculating. See how pointless that is? The fact that one connection is limited to 2 amps doesn't mean all power connections are limited to 2 amps.
And where did I say anything about increasing the voltage? I'm not an idiot and didn't suggest such a stupid thing.
As for temperature, that can easily be monitored during charging and the current can be reduced if it gets too high. You are aware that there is a temperature sensor for the battery, right?
None of which has a darn thing to do with my opinion that it's unacceptable to produce a device that uses more power than it can get from its AC adapter. If there really is no way to run the Nexus 10 at full tilt without supplementing the AC adapter with battery power, Samsung should have addressed that problem before going into production with this unit. This isn't a $150 entry level device. It's the Android flagship.
Click to expand...
Click to collapse
Please, you started speculating about a high-current POGO-charger that doesn't exist.
Sure, you didn't mention the voltage, but I ve seen comments about it before, so I just wanted to make it clear.
And I didn't say the temperature was a problem either, just that it lowers the efficiency of the charger and the device.
Samsung maybe didn't know there was a charging problem.
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
And I know, this is supposed to be a flagship, but what everyone forgets is that it's much cheaper than other brands.
I was looking forward to buy a ASUS TF700 with keyboard at almost twice the price as the Nexus 10 before I read about the Nexus.
Even if it doesn't justify the charging problem, you could try to adapt to the circumstances until there's a solution.
When I'm low on battery, I let the device charge and do something else for a change.
Sent from my Nexus 10 using xda app-developers app
Edit: If you look at the pictures of the POGO-charger that's across the internet, the charger is still only 5V, 2A.
Olaeli said:
Please, you started speculating about a high-current POGO-charger that doesn't exist.
Sure, you didn't mention the voltage, but I ve seen comments about it before, so I just wanted to make it clear.
And I didn't say the temperature was a problem either, just that it lowers the efficiency of the charger and the device.
Samsung maybe didn't know there was a charging problem.
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
And I know, this is supposed to be a flagship, but what everyone forgets is that it's much cheaper than other brands.
I was looking forward to buy a ASUS TF700 with keyboard at almost twice the price as the Nexus 10 before I read about the Nexus.
Even if it doesn't justify the charging problem, you could try to adapt to the circumstances until there's a solution.
When I'm low on battery, I let the device charge and do something else for a change.
Sent from my Nexus 10 using xda app-developers app
Edit: If you look at the pictures of the POGO-charger that's across the internet, the charger is still only 5V, 2A.
Click to expand...
Click to collapse
I have a nexus 10, nexus7, and a Tf700. I am noticing slightly faster charging on the n10 using the Tf700 ac adapter. The same is true when trying to charge my tf700. The stock samsung n10 ac adapter charges it slower than the asus transformer adapter. The same is true with my nexus 7 adapter. Ive used the n7 adapter to charge my tf700 and it was not as quick a charge. Meanwhile all 3 units are rated for 5v 2amp.
Olaeli said:
We've seen examples before that manufacturers don't test their products enough.
(ASUS Transformer with encased aluminum body, anyone?)
Click to expand...
Click to collapse
I wonder what all they did test if they somehow managed to miss that...
joe1l said:
I have a nexus 10, nexus7, and a Tf700. I am noticing slightly faster charging on the n10 using the Tf700 ac adapter. The same is true when trying to charge my tf700. The stock samsung n10 ac adapter charges it slower than the asus transformer adapter. The same is true with my nexus 7 adapter. Ive used the n7 adapter to charge my tf700 and it was not as quick a charge. Meanwhile all 3 units are rated for 5v 2amp.
Click to expand...
Click to collapse
Could be possible the N10 charger isn't actually putting out 2A? Might need a multimeter or something to verify for sure though...
I am currently out of town so keep in mind I didn't have a chance to dig too deep but I've given the kernel a quick look through.
There is no such thing as the "high current pogo charger." The pogo pins accept 2A max and appears to be ~5V. The USB connector has the same limits.
I also took a look at the current at the battery to make sure the charger was being detected correctly. My 1A Samsung non-Nexus 10 charger seems to supply ~900ma to the battery which is as much as you should expect out of a 1A charger. My Nexus 10 charger supplies ~1600ma to the battery. This number seems slightly low but at least indicates the charger is detected correctly.
*If* the pogo charger does indeed charge faster, it will likely be because the pogo charger is able to supply some current that is asymptotically closer to 2A. In other words, it will not charger much faster than the USB charger.
On the other hand, the pogo charger will still be nice to have as it will allow simultaneous usage of USB OTG and charging.
Like I said before, I was unable to dig very deep because I'm out of town and browsing sysfs and kernel source on a tablet isn't the best experience. So, the info I found might not be 100% correct.
dalingrin said:
There is no such thing as the "high current pogo charger." The pogo pins accept 2A max and appears to be ~5V.
Click to expand...
Click to collapse
Please show some proof/references for this statement.
Valynor said:
Please show some proof/references for this statement.
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Click to collapse
There are many indicators throughout the kernel but for brevity I'll post what I think is the most concise.
https://github.com/CyanogenMod/andr...ng/arch/arm/mach-exynos/board-manta-battery.c
Line 773-776
Sets the current to 500ma if USB is detected on the pogo or 2A if AC is detected.
Well if you're reading 1600ma using the standard ac adapter that comes with the N10 and possibly closer to 2000ma (say 1900ma) using the pogo, then that is 1/5 faster charging. In terms of time that is quite a saving.
Of course, that is all speculation
USB current limits
I thought I'd post this as information I found while doing a spot of light reading
The current specification of a USB 2.0 port can be a maximum of 1.8A. Within Constraints.
"Battery Charging Specification 1.1: Released in March 2007.
A usb charging port places a termination resistance between D+ and D- to allow the maximum 1.8A", meaning that at this current, there can be no data transmission.
This appears to be increased for USB 3.0 standard.
"Battery Charging Specification 1.2: Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A."
citations come from documents here:
http://www.usb.org/developers/devclass_docs
As POGO pins do not have to follow any specification the only limit is the current the board & charging circuit can handle.
Look at the specs on the wall plug in unit. It's not a charger it's a 5V power supply and the charger is inside the N10. However the charger is setup determines the charging rate. Like mentioned above, it may not matter if you "could" use a 10A at 5V power supply.
Anyone else dealing with this? It was so loud when I went to sleep last night I had to get back up and hunt the room to find the source.
It's the wall charger. It buzzes when plugged into the wall, with or without the USB cable attached, but only without the phone ALSO attached and charging.
I come from a Nexus S and Galaxy Nexus and neither of those had this issue (nor any other wall charger for the myriad of electronic devices I've owned).
I'm not gonna reach around under the desk to unplug the adapter from the wall each time I'm done using it with the phone.
My usage scenario is probably really common in that I leave it and the USB cable plugged in, with the phone end of hte USB sitting on my desk. Plug the phone in to charge, otherwise phone is elsewhere. So, more often than not there is no phone plugged in, and it's thus buzzing.
Of course, Google can't or won't just send a replacement charger - they want to do a complete warranty return of the phone and everything. Such a major hassle for a small simple piece.
Does anyone know if the LG Optimus G has the same charger? I'm tempted to go to some local cell shop and try some other of the same charger to see if the problem is beyond my particular unit.
Happens to me too. As long as it charges I'm going to keep using it. If it goes I have a couple backups. I wouldn't return the phone though. Just pick up an after market charger and you should be fine.
Sent from my Nexus 4 using xda app-developers app
Having the same issue, really annoying. There seem to be many faulty units...
But I fear they won't just replace them for free, because they are working well, just with this annoying noise. :S
IMO its just a charger. My phone is fine so if I have to use another I will. Walmart has some for like 10 or 12 bucks. But your right, charger shouldnt be faulty with that annoying buzzing sound.
Sent from my Nexus 4 using xda app-developers app
Mine does the same and its only when the phone is unplugged from it. It takes a little while to build up the buzz. Its like they used a low budget capacitor or something. Who knows..
Sent from my Nexus 4 using xda app-developers app
Same here, doesn't do it when the phone is plugged in so I don't really care. You can only hear it if you are right beside it.
Have the exact same issue with my Galaxy Nexus and Nexus 4 charger...
This is the 3rd nexus I've had due to various faulty reasons and all 3 have had the buzzing in the earpiece and an even louder annoying as hell buzz in the wall charger. The last 2 also have the rattle while the first didn't but I don't care anymore I still love this phone and will live with the annoyance. I don't really hear the earpiece buzzing unless it's silent in the room
Sent from my Nexus 4 using xda app-developers app
Mine doesn't buzz, but squeals at a high pitch (15+KHz). It's not a constant tone, but warbles up and down in volume making it almost impossible to ignore. Swapped to the charger for an old iPhone one I had lying around. It only has a 1A rather than a 1.2A output, so it'll charge a little slower, but it's worth it to avoid the racket.
I am having the same issue is yours charging really slow some time I left mine overnight and it was around 25 :banghead:
Sent from my Nexus 4 using xda premium
Having the same issue as well with my charger. Very annoying. After I unplug it from the wall it still buzzes for about 30 seconds then stops.
Sent from my Nexus 4 using xda premium
Buzzing is just a capacitor inside charger.
When there is nothing connected capacitor is getting current, but with phone connected current goes to your phone.
Buzzing last even after charger unplugged because capacitor is like a temporary storage and gets discharged in few seconds.
Capacitors prevent power fluctuations, and help prevent ditect damage to device if there are fluctuations in power supply board.
Nothing to worry about it, many industries use capacitors to maintain their power factor (voltage/current) ratio.
Sent from my Nexus 4
Yep, experiencing this problem too. Personally, it's really annoying for me, the charger is just 30-40 cm away from my head when I'm sleeping.
I wonder if I could use another charger, I've one with OUTPUT of 5.0V and 700mA, that should be fine right?
Harsh said:
Nothing to worry about it, many industries use capacitors to maintain their power factor (voltage/current) ratio.
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Who's worried about it? It's annoying and obnoxious.
Person above: any USB charger is fine. The higher the possible current, the faster the charge (to a point, the phone will only ask up to a certain amount)
Yeh I have this on my UK charger.
It is recommended to unplug/switch off at the wall anyhow as a charger will be using power even when not connected to the phone.
Sent from my Nexus 4 using xda premium
drpepe said:
a charger will be using power even when not connected to the phone.
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An ancient 'wall-wart' transformer PSU maybe, but a modern switch-mode PSU will be using a handful of milli-Watts at most when idle. Not really worth unplugging to save power: home electricity is measured in units of 1kWh; at 10mW, you'd have to leave the charger plugged in for over 11 years to use 1 unit.
mine buzzes very loud too. both my nexus s chargers also buzz but not as loud as the LG one.
EdZ said:
An ancient 'wall-wart' transformer PSU maybe, but a modern switch-mode PSU will be using a handful of milli-Watts at most when idle. Not really worth unplugging to save power: home electricity is measured in units of 1kWh; at 10mW, you'd have to leave the charger plugged in for over 11 years to use 1 unit.
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All the phone chargers iv used have got pretty warm when I've accidentally left them plugged in with no phone. They are using power so it just seems common sense to unplug (or switch off at the wall, which is what I do in the uk).
I'm not sure where you got your numbers but a quick Google found these :
the Lawrence Berkeley National Laboratory, who measured several devices in each category, a cell-phone charger draws an average of 3.68 watts when the phone is on and charging; 2.24 watts when it is on and charged; and 0.26 watts when it is just hanging out in the socket
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http://grist.org/green-living-tips/ask-umbra-is-it-bad-to-leave-chargers-plugged-in/
Sent from my Nexus 4 using xda premium
I have the same problem with my Nexus 4 charger. Decided to use my Sony Ericsson Xperia charger instead.
This problem still annoys the hell out of me because my charger is next to my bed and I can hear it all night if I don't have my phone plugged in.
Sent from my Nexus 4 using Tapatalk 2
Is it normal that my turbo charger has noticeable electrical noise when charging?
It has some volume variation depending on the phones battery level or what other device i am charging with it.
Its at my nightstand and it bothers my while i want to sleep. It gets louder if i charge something that's not QC2.0 compatible.
I stopped using it at night because its loud , but i am not sure if its okay or it has some problem.
Anybody else with his charger making noise?
My other charger are completely silent(chromecast adapter, nexus 7 2013 charger, iphone 4 charger, sony bluetooth speaker charger)
Only the turbo charger makes noise and its louder than i am comfortable with.
No noise on any of my 3 Motorola Turbo Chargers. I would have it replaced by moto
My Note 2 and Nexus 6 chargers both make a sort of high-pitched whine when plugged in. Come to think of it the charger on my electric razor makes the same sound as well.
yup, mine makes the noise, Google results pointed me to a couple reddit users who experience the same, so there of a few of us out there.
ah, damn quality control.
or maybe its a high pitch noise that most people cant hear, but a few with hearing sensitivity that can pick it up. generally, the yoinger you are, the more sensitive you are to noise in the higher pitch range. and gradually the sensitivity goes away as you age.
Finally someone else is having this problem as well. I mean i wish we didn't but it's good to know that I am not the only one. My first original turbo charger was making that noise too so i called Motorola and they sent me another one but that one is making a noise also which makes believe that it's something with a phone.
You either have really good hearing or something is not right with the charger. It will make a high pitched noise but it should not be that loud.
Mine will occasionally "whine" but it doesn't always do it. I have 2 of the Motorola 'turbo' chargers and both of them do it. Its more of a rare occurrence and it doesn't bother me. I bought a different brand one off Amazon that's coming today and can provide up to 30W (I doubt the nexus 6 supports the 12v turbo 2 output but i bought it for future devices). Has anyone else noticed that battery monitors don't reflect the accurate voltage? Mine always shows ~4.1V it could just be my turbo chargers.
Same for me. Thought it was normal due to the extra power output.
lainemac said:
Same for me. Thought it was normal due to the extra power output.
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One would expect that to be the case. However, I just found mine doing it (it woke me up this morning) and my phone is fully charged. It made no noise while the phone was charging; so either it's only doing it under low load or on the 5v circuit, or my charger degraded overnight, the first night it was in use (I just got the phone yesterday).
Contacting Moto about this for sure.
I can confirm this issue using the EU charger. I didn't notice it until yesterday evening. When my phone was at 100% the charger started making noticeable sounds.
Any feedback from MOTO yet?
Sent from my Nexus 6
Davzone said:
Is it normal that my turbo charger has noticeable electrical noise when charging?
It has some volume variation depending on the phones battery level or what other device i am charging with it.
Its at my nightstand and it bothers my while i want to sleep. It gets louder if i charge something that's not QC2.0 compatible.
I stopped using it at night because its loud , but i am not sure if its okay or it has some problem.
Anybody else with his charger making noise?
My other charger are completely silent(chromecast adapter, nexus 7 2013 charger, iphone 4 charger, sony bluetooth speaker charger)
Only the turbo charger makes noise and its louder than i am comfortable with.
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As a refrigeration tech I deal with low voltage a lot. Buzzing from a low voltage transformer, which is what you're charger is, Is no good. That usually means the coil inside is overheating. Sounds more like a defective charger to me. I honestly wouldn't even plug that thing in.
draa2711 said:
I can confirm this issue using the EU charger. I didn't notice it until yesterday evening. When my phone was at 100% the charger started making noticeable sounds.
Any feedback from MOTO yet?
Sent from my Nexus 6
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This exact thing just started happening to me. I am just hoping that leaving it on the charger isn't a safety hazard (for me or the phone lol)
Also curious to hear Moto's stance on this.
I noticed this 'whine' from the charger too tonight. Actually I found sounds like this fews days ago,but no idea where it came from, -- have thought it was from my notebook. Until tonight I found out the whine gone when I plug out my charger. and yes, that was when my phone got fully charged, will check out if it is there when the phone isn't 100% next time . . .
I've got the same problem. Has anyone performed a factory reset to see if the problem goes away?
Mine only whines on a cheapish wireless charger. No whine sound on my turbo charger or my tylt wireless charger. Been doing it since I bought the phone back in November. As far as I can tell it doesn't hurt anything.
Sent from my Nexus 6 using Tapatalk
I don't think the charger is a good quality or a safe one, strongly suggest you to replace a new one.
xymay said:
I don't think the charger is a good quality or a safe one, strongly suggest you to replace a new one.
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Yeah i've sent it back they'll ship a new one:good:
That whining you guys hear is just a voltage regulator vibration. It's not really something to be concerned about unless it gets louder. The same thing happens to graphics cards in a computer when they are under heavy load. It doesn't happen to all, but does still happen.
In my case with GFX cards, hot glue around the regulator that is vibrating has normally been a more than satisfactory fix. I doubt you guys will want to tear into your chargers to find the culprit.
Anyway, just giving my experience and knowledge.
Hi. I have this as well with my Moto X Play's charger. It is not so loud but it is enough to ruin my sleep. It only does it when the phone is done charging. One solution is going to the developer options and set it so that the screen does not turn off while charging, but this is probably bad for the battery as my phone is often very warm in the morning when I do this so I cancelled this and just resorted to not charging my phone when sleeping. It does not seem to be a defect, just something that went under QA or desing's radar.
Whats up with nexus 6 quick charger making a chirpy squeely noise? Did motorola use crap caps in this thing or whats squeeling and chriping so much in the walwart when its in use. Its got a sound connection and its plugged in securely.
nookhdp said:
Whats up with nexus 6 quick charger making a chirpy squeely noise? Did motorola use crap caps in this thing or whats squeeling and chriping so much in the walwart when its in use. Its got a sound connection and its plugged in securely.
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mine doesnt make any noise. i think motorola only made yours that way? you should probably get it replaced.
Mine does that since it was new. It's right next to my bed and it sometimes gets annoying at night, but not worth the hassle of replacing. I've had no issues charging.
Mine does the same, it's plugged into one of those 3 outlet splitters if that's any reason. But only everyonce in a while
Mine only does this when I charge it wirelessly . I hear a loud squeal for about 15 seconds and then it goes away.
Any sparkies looked to see if its cheapass caps issue? Only other thing I could think of is since its a quick charger there is some other half assed component in there since I think it adjusts voltage. Oddly this is the first walwart ive had that did this.
I swear a squirel is gonna jump out my phone motorola.
It does on mine and it's annoying when I'm charging it at night next to my bed. I just use a 5V 2Amp charger for overnight charges.
I have quite a few chinese power adapters for boards with coil whine.
My moto charger is fine though, I would expect they are higher quality and coil whine wouldn't be too common. Try for a replacement I guess.
Same problem. And there is already another thread about this issue...
Mine is making noise when my N6 is fully charged - otherwise the charger is quiet.