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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.
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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.
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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..
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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
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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:
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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.
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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.
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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/
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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.
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Using CM10.1 (06-14 nightly) on my One (International), connected to a Belkin 1A USB car charger with a decent quality USB cable. The phone discharges slowly in general use, and quickly when using GPS. Looking in battery settings it shows "Charging (AC)", which would suggest that it's drawing the full 1A for charging. I didn't notice this problem on stock Sense, although it's been a while since I used that.
Has anybody else seen anything similar on their One? Is there any useful information I could get from a logcat to give to the CM devs?
Thanks in advance,
Jon
OK I checked on stock and it does drain similarly. Should I just get a more powerful charger or could I have a hardware problem? Tried with 2 different 1A car adaptors.
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Have you got a clamp meter or know someone who has one? That will tell you how many amps are going into your phone. It does sound like the charger though as your charger at home should be similar voltage/amps to the car charger only the AC charger needs a transformer and rectifier to step down the voltage and change it from AC to DC, car chargers just step down the voltage a little (12v-5v) so require little additional size. Probably easiest to swap out the charger, they're pretty cheap
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I think you need a bigger charging maybe the charger is not able to provide the needed ampere.
Sent from my HTC One using xda app-developers app
Thanks guys. I've ordered a 3.6A charger which had reviews saying it worked well for high power usage Android devices. So hopefully that'll sort things out. I'll post back my results.
OK, tried with the new charger and a good USB cable, and all is well. Even with GPS and Spotify running together the phone still charges slowly.
jondrums said:
OK, tried with the new charger and a good USB cable, and all is well. Even with GPS and Spotify running together the phone still charges slowly.
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It's probably not about the Amp rating of the charger. You probably had a cheap charger unit that couldn't deliver the amperage the phone needed either cos it was using cheap parts or something. A proper 1amp charger will still do as well as your new 3.6A charger
ArmedandDangerous said:
It's probably not about the Amp rating of the charger. You probably had a cheap charger unit that couldn't deliver the amperage the phone needed either cos it was using cheap parts or something. A proper 1amp charger will still do as well as your new 3.6A charger
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Yeah that makes sense. I just thought that if I got a massively over-specced charger then it would at least manage 1A Would have expected the Belkin one to work properly in the first place but never mind.
Hi,
Can anyone recommend a decent USB cable for my sons N7?
Need to get a replacement, but the ones i currently have are not beefy enough to charge properly.
Cheers
Paul
Sent from my S3, using TT2
Same problem, can only find pathetic skinny fragile things.
I have used this cable without any probs
AKASA part no AK-CBUB05-10BK
bought from CPC order code CS20881
Try a flat ribbon cable, Amazon Uk have them http://www.amazon.co.uk/s/ref=nb_sb...onics&rh=i:electronics,k:flat micro usb cable Various lengths and colours. I use a standard 1.2mtr blue one that I bought last year.
I'm using Logitech cable for charging (got it with the mouse) and Nokia cable for PC (they are always connected, that's why separate cables), so get one of those.
I've only had problems with 3 years old Samsung cable because it kept falling out (it stays in on my SE phone)
I really doubt beefyness of the cable affects charging though. I charged my tabled on just about any cable I've found laying around in the house with no problems
The reason as to why your charge cannot keep up is most likely due to using a charger with lower amperage (i.e 1amp/1A).
As long as you purchase a 2amp charger and compatible usb cable, then you shouldn't have any more issues with draining the battery faster than it can be charged thanks to the 2amp charge rate.
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MasDroid said:
The reason as to why your charge cannot keep up is most likely due to using a charger with lower amperage (i.e 1amp/1A).
As long as you purchase a 2amp charger and compatible usb cable, then you shouldn't have any more issues with draining the battery faster than it can be charged thanks to the 2amp charge rate.
Sent from my GT-N7105 using xda app-developers app
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Thanks for the reply guys, this is using the Asus charger that came with the device, just that the original cable split, so I need a replacement.
Have looked at the cables, might get one of the flat ones as they look good.
Cheers,
Paul.
Just to let you know I bought the flat ones and they fit and work really well.
Thanks for the replys all.
Sent from my S3, using TT2
Trick is to get a short a cable as you can. The impedance really effects charging. The difference between my stock and a 6' cable is like a 60% drop.
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I've googled it and I'm getting very mixed opinions. Most say 2.1 of course is faster for charging. I am led to believe that because even the box to there car chargers say the same.
I would like to disagree but need help understanding why. Maybe I'm wrong and I have a faulty charger.
My charger has two ports. One is 1amp and the other is 2.1amp. My 1amp side seems to actually charge my phone faster than the 2.1amp side. Also with 2.1amp while in listening to music through Bluetooth using GPS and navigation all at the same time, it tells me my phone is dying faster than it's able to charge. With the 1amp side I'm able to hold a steady charge sometimes going up at least 2 percent during a 30 minute drive.
What's your opinions? This isn't the iPhone or Samsung threads so I'm sure we have some of the smartest guys/girls here on xda
Edit: sorry I'm a bit stoned atm so forgive me for my typos and I'll fix tomorrow.
.....don't judge. I live in Washington state. It's just as legal as buying a bottle of beer.
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Ok sober now. So nobody knows why 1amp charges faster on this phone than a 2.1amp car charger? I've used several car chargers and it's the same issue.
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tsdeaton said:
Ok sober now. So nobody knows why 1amp charges faster on this phone than a 2.1amp car charger? I've used several car chargers and it's the same issue.
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It should be a no brainer that a 2 amp charger will charge your phone faster as opposed to a 1 amp simply because one has more output than the other. But I believe that because of the smaller battery the phones have, they need a smaller amp per second of charge. If not then it may destabilize your battery.
Thats just my two cents though. Dont quote me
tsdeaton said:
I've googled it and I'm getting very mixed opinions. Most say 2.1 of course is faster for charging. I am led to believe that because even the box to there car chargers say the same.
I would like to disagree but need help understanding why. Maybe I'm wrong and I have a faulty charger.
My charger has two ports. One is 1amp and the other is 2.1amp. My 1amp side seems to actually charge my phone faster than the 2.1amp side. Also with 2.1amp while in listening to music through Bluetooth using GPS and navigation all at the same time, it tells me my phone is dying faster than it's able to charge. With the 1amp side I'm able to hold a steady charge sometimes going up at least 2 percent during a 30 minute drive.
What's your opinions? This isn't the iPhone or Samsung threads so I'm sure we have some of the smartest guys/girls here on xda
Edit: sorry I'm a bit stoned atm so forgive me for my typos and I'll fix tomorrow.
.....don't judge. I live in Washington state. It's just as legal as buying a bottle of beer.
Sent from my HTCONE using Tapatalk now Free
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i just drove 4 hours with a 2.1 amp , fast charge kernel and i can confirm your exact same findings. no idea why.
sdlopez83 said:
i just drove 4 hours with a 2.1 amp , fast charge kernel and i can confirm your exact same findings. no idea why.
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Be careful with those 2 A chargers. I have seen a lot of threads with fried Ones because of chargers lately
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Answer
HTC put a limit on how fast the phone can charge. The chipset supports rapid charging but at what cost (of the battery)? So to be safe HTC disabled that feature of the chipset. So even if you plugged it into a 4 amp USB connector, you are not going charge any faster than say 1 amp. Don't know what the specifications are on the optimal amperage...
elvisypi said:
Be careful with those 2 A chargers. I have seen a lot of threads with fried Ones because of chargers lately
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Fried what specifically? phone or battery?
sdlopez83 said:
Fried what specifically? phone or battery?
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Motherboard
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Using a higher amp charger cannot damage the battery. The phone will only pull as many amps from the charger as it needs (probably 1.5 amps max).
Source: basic physics.
zaner123 said:
Using a higher amp charger cannot damage the battery. The phone will only pull as many amps from the charger as it needs (probably 1.5 amps max).
Source: basic physics.
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I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
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elvisypi said:
I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
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could you possibly link to those threads? I have the dual charger 1&2.1. My results are opposite of op my 1a doesn't charge phone but the 2.1 gains charge while driving even while watching movie! id like to read up if it may be problematic! thx
Htc one battery originally is charged by 5V and 1A charger; Can 5v. and 1.3 A damage the phone?
One thing that nobody here has mentioned is the possibility that your charger might have been wired wrong and the side that charges faster is actually the 2.1mah connection instead of 1mah.
With all of the chargers from everywhere in the world that we get them from and they are supplied from, anything can happen that We don't expect.
Maybe you might want to get it tested with an OHM Meter to verify which connector is the Higher and which is the Lower.
gd761 said:
One thing that nobody here has mentioned is the possibility that your charger might have been wired wrong and the side that charges faster is actually the 2.1mah connection instead of 1mah.
With all of the chargers from everywhere in the world that we get them from and they are supplied from, anything can happen that We don't expect.
Maybe you might want to get it tested with an OHM Meter to verify which connector is the Higher and which is the Lower.
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The only thing that is different (as far as the phone is concerned) is whether it sees an AC style charger or DC style. No matter what, the phone will only pull what the charging circuit "says" to pull.
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For some chargers, sometimes the 2 Amp port appears to be using the Apple protocol for USB power, so that port will only provide 0.5 Amps to most other devices. And when the1 Amp port somewhat over delivers, and can source 2 Amps if nothing else is connected and 1.5 Amps if the 2 Amp port is sourcing 0.5 Amps for a non-Apple device. Thus some chargers can support one high power non-Apple device (in the 1 Amp port) and one lower power device (in the 2 Amp port). FYI I use this charger bought on Amazon---Avantek. Worked really well, versatile and low profile.
elvisypi said:
I am saying motherboard. I don't know about physics, but I know from reading the troubleshooting thread that many people have now expensive bricks because of those chargers
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Maybe a myth?
I've been looking at car charges lately to utilize my G2 as my main Gps. I was hoping for a dual port for added flexibility but it's not necessary. Is there a standard charger that is considered the best?
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There's one at best buy made by rocket dog. charges super quick and has an additional USB port
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Not sure if this one is the BEST, but it probably gets pretty close.
Scosche USBC202M Dual 10 Watt (2.1A) USB Car Charger
Amazon: http://amzn.com/B0077PM3KG
2.1Amps so it will charge full speed, even 2 new smartphones at once. And its got a very low profile.
Scosche seems like a brand i can trust. No issues so far.
They only thing i dont like is that its blue light is somewhat bright, noticeable during night drives. But that just might be a personal problem.
Get this Anker charger and it'll be the last one you buy for a while
http://www.amazon.com/dp/B00B8MMZY8/ref=cm_sw_r_udp_awd_d74stb15KK76W
It can charge your phone with ease while in GPS mode. I would avoid any charger that is 2.1 amps or states that its for iPhones in the beginning of the description if your trying to use your GPS and charge your phone at the same time
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