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So I use my phone in the car quite a bit. I usually connect audio through bluetooth and run a navigation app. When i do this, even with the charger plugged in, I slowly LOSE battery life, I can't even hold it at its current level. If I'm not running anything, my phone will slowly gain charge, but I'm wondering if there is any kind of stat I can look up to see if my charger is defective.
Thanks
GS3
Stock Rooted
It sounds like your car charger is not putting out enough power. Make sure your car charger matches the output level of the stock wall charger that came with your phone.
If that's not the case I'm at a loss.
Well its definitely not the same output as the wall charger. Even on my old phone (Incredible) it charged much slower int he car, but at least on that one it would still charge. Could the power draw on the S3 be that much greater?
I don't have this issue with my SGSIII.
I use the Device for Phone & music via Bluetooth to my Car Stereo, and Navigation. Charging has never been an issue for me. I didn't buy the Car Charger Accessory for the SGSII but instead opted to use the Car Charger that came with the mounting kit for my old Google Nexus One.
If you have a Car Stereo that has a USB Connection port, I would'nt recomendyou use that to charge your phone as most models don't put out enough Juice to charge a powerhouse like our phone. As with mine I used it one time to try and charge my phone and it only trickled charged it.
The output on the stock charger is 5V 1A
Ideally it would be best to use a car charger that output 1A
For comparison my old blackberry car charger puts out 0.5A and my old iPhone "quick" car charger aka iPad charger puts out 2.1A
The lower the amps = slower charge sometimes slower than your consuming.
That being said if Samsung put in all the proper safety features you could use a higher amperage and be ok as it would limit the amps pulled... If they didn't it could create too much heat and shorten the life and stability of your battery.
I would recommend locating a car charger that is equal to 1A and play it safe.
Hope this all helps... I'm not an expert at any of this but I researched this exact issue myself before as I wanted to know if it would be safe to use my iPad charger on this GS3 as I did my iPhone for quick dirty chargers... Short of it... I don't..
I'm currently using this
http://www.amazon.com/gp/product/B003HM27DG/ref=oh_details_o00_s00_i00
I like it mainly for the cord retractability. I will try and grab an old micro usb charger from my parents and see if it makes a difference in the charging.
From looking at their website it says that charger is 600mAh
I don't know enough about power, etc.. To know what that converts too in A. But if I had to guess I would say it's lower than 1A but maybe somebody else who knows more could chime in as I would hate to give you any false information...
Either way, I hope you get everything straightened out
We have used these Verizon dual USB chargers (i.e., they have a male micro USB connector and also a female standard USB connector - so, you can attach a second cable for dual charging and/or use a proprietary connector, when desired) for some time now in two cars, both used almost daily. They charge well and only one had a connector that got a little loose after nine months, then was replaced with the same model. You can find them rather cheap at other sites and eBay, as compared to full price from Verizon's store.
- ooofest
Hey,
Is anyone else noticing that not all micro USB chargers fit properly with this phone? For example, I have a Micro USB charger from my Droid Pro that I really like because it has interchangeable plugs (for use in foreign countries). Unfortunately this charger doesn't fit quite right and sometimes the phone doesn't charge/doesn't detect being plugged in. It seems loose and has a lot of play when it's "plugged into" the phone.
If you look at the micro USB port itself, it seems to be pushed back into the bezel by about 1mm more than "normal" -- so I think this may be the cause of the problem. If I hold the micro USB cables side by side, it seems like the metal part of the official cable is about 1mm longer than the cable for my Droid Pro. Actually, I probably could take an exacto knife to the pro's cable and cut it back a little bit...
So - is anyone else experiencing this? It's worth noting that the official charger works fine and fits snugly, so it's not the phone itself is messed up.
-- Dan
I have had a charger or two that mine hasn't been happy with. I believe that the output of the charger is an issue as well. It seems that an output of less that about 1 amp won't activate the charging circuit. I blame it on the larger battery. My tablet won't charge with too low an amp rating either.
dbeedle said:
IIt seems that an output of less that about 1 amp won't activate the charging circuit. I blame it on the larger battery. My tablet won't charge with too low an amp rating either.
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Click to collapse
My Razr Maxx HD charges just fine with an 850 ma charger -- and the phone should charge even with 500 ma since that's the maximum output of USB. Can you please provide further details on how you came to this conclusion?
Only an assumption based on my experiences with other devices (tablets) and chargers, most notably the Palm Touchstone which was/is notoriously picky about the amperage. I have had a charger or two that would not charge the Maxx HD that seemed to seat well in the connector. If I remember right my wife's Samsung Nexus charger is one of these. I can only guess that, if the connector seats well in the socket that lack of amperage could be the cause of the charger not working with the Maxx. I only offer this up as a possible cause to charging issues. There are certainly other possibilities.
Note: I did just try the USB port on my laptop with a know "good" cable and it does activate the charging circuit. So while I'll still contend that not all chargers are equal to the others, in this case I'm probably wrong in thinking the amperage to be the culprit. I'll have to examine some cables a little closer even though they appear to fit correctly!
Hi guys.
I have a bit of a tech question in regards to the charging dock for my sony xperia z.
I know how these smartphones can chew a lot of power and can go flat pretty quickly. so i charge the phone from a 240v power supply which has a 5v usb output rated at 2.1 amps. I know it charges faster than using the official charger which is rated at 1.5 amp as i have done my tests at work where i have the equipment to do so on my desk. I understand that it might reduce the life of the battery and probably not recommended as the battery is a lipo (kaboom).
I haven't seen one docking station out there which will charge at 2.1 amps!! So i bought 2 cheap knock-off charging docks off ebay in the hope i could use the charger with the 2.1 amp output. Both docks rated at 1 amp input and output. I was curious as to why they had a 1 amp input. So i opened it up and found a circuit. I redrew that circuit on paper so i could see what was happening. It is a simple circuit with a mosfet and transistor, which no matter what current you put through it, it will only allow up to 1 amp to pass through. Now why would they have that in there? Is it to make it usb compliant? why not just have a straight through connection to allow for higher current charging? Or do the charging pads on the side of the phone only support up to 1.8 amps (like the original sony dock) but they decide 1 amp is safe enough in case they have a faulty unit or whatever...i don't know.
I know it might seem like a stupid question but this raises another. Does the 2 charging pads on the side of the phone link directly in-line with the usb micro port for charging? or does it have its own regulation as well?
Basically what I want to do is modify the dock so it is a straight through connection, bypassing the circuit in the dock so i can plug my 240v mains adaptor to usb which outputs 2.1 amp so I can get that faster charge. My worry is if those charging pads will handle that sort of current or damage its regulator if it has one or even the usb micro regulator if it has its own? I know people say "it will only draw what it needs"......That statement is only true to those devices which have no battery and rely solely on a power adaptor. If the device has a battery, it will take what it is given, unless there is some sort of regulation to prevent over charging. Like I said, I have done my testing.
I was just hoping someone out there might have some more knowledge on this, specially in regards to the charging pads on the side of the phone. I don't particulaly want to ruin my $700 phone
Hi,
have you actually tried to do the modification? I was thinking about the same thing...
Hey there,
I've owned three nexus 5's and I just bought a 4th and I notice that the back makes a slight buzzing sound when charging. I know the LG wall chargers make a sound but this is coming from the device itself. Only happens when charging and the phone keeps a good charge so I don't thinks it's a faulty battery.
Sounds like it's coming from the middle to top part of the rear, where the battery connects to the logic board. Could it be a faulty battery, just a transformer or something more serious?
Also I left it charging for 7 hours overnight, no issues.
Thanks in advance
Anyone?
For me it has no noise while charging, but the charger gets very very hot. Pay attention to your device while charging, check if the device or the charger temperature is higher than it was supposed to. For me the charger might get to 70ºC, it almost burns my hand sometimes mainly if charging 2 devices at once.
Have you tried plugging in a headphone to it and see if the noise goes with the audio?
LukasFS said:
For me it has no noise while charging, but the charger gets very very hot. Pay attention to your device while charging, check if the device or the charger temperature is higher than it was supposed to. For me the charger might get to 70ºC, it almost burns my hand sometimes mainly if charging 2 devices at once.
Have you tried plugging in a headphone to it and see if the noise goes with the audio?
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The charger is fine and the buzzing/humming sound isn't coming out of the speaker, it's coming from the rear of the phone itself. Temperatures for phone and charger are normal.
I got the phone for awhile,
the phone itself is running very well.
but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)
when it is charging, it is completely silence.
Do you also hear the noise from the charger too?
Can't say I have noticed that. But I always turn chargers off when not in use. It's safer.
I sit close to one at night, in total silence, and I can't say I've ever heard any noise coming from it.
Sent from my MHA-L29 using XDA Labs
Yeah, I heard it too. I have two chargers and both do the noise.
What kind of a noise? Like a humming sound? Electrical buzzing?
Sent from my MHA-L29 using XDA Labs
Better call them Ghost Buster folks.
On a more serious note, never experienced anything like it. Turn off your charger when you're not using. Better charger life longevity.
This has been a thing with LG chargers for years. For some reason they just hum or buzz.
I wouldn't worry about longevity tbh. Any good quality charger will largely outlast the device it hooks to. Heck my 1995 Motorola Flare charger still works.
If the buzzing gets on your nerves you can always get one of those cheap socket adapters with an on/off switch (see attached).
Sent from my MHA-L29 using XDA Labs
I used to get that on my old Samsung chargers. Never heard anything with my mate 9 charger tho. I wouldn't worry about it if I were you.
Thank you for the input for using a switch to turn it off when not using...
but the most important point is, i have a friend who also own a Mate 9, his charger is dead silence when charging or idle.
The sound is more or less like buzz (but very little sound)
rayraymond said:
Thank you for the input for using a switch to turn it off when not using...
but the most important point is, i have a friend who also own a Mate 9, his charger is dead silence when charging or idle.
The sound is more or less like buzz (but very little sound)
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Click to collapse
I can confirm your charger noises. Wired thing. Better unplug the charger, because noise means it is burning up energy!
Not to be dumb but is it your outlet? Have you tried a different one? Mine is completely silent
rayraymond said:
I got the phone for awhile,
the phone itself is running very well.
but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)
when it is charging, it is completely silence.
Do you also hear the noise from the charger too?
Click to expand...
Click to collapse
Notice this as well one night while reading on the phone in bed. Mine does it with or without charging. I've also experienced this with a Sony adapter, and Samsung. I have a few devices plugged into a 8 prong switched grounded outlet... I just flip the switch off in the morning and this this actually lasts until bedtime??
rayraymond said:
I got the phone for awhile,
the phone itself is running very well.
but i have another concern,
i start to hear the super charger when it is idle (not charging but plugged into the wall)
when it is charging, it is completely silence.
Do you also hear the noise from the charger too?
Click to expand...
Click to collapse
Phone chargers are step-down switching power supplies.
They are called switching power supplies, because electrical current flowing into coils or capacitors is always switched on and off to get a desired amount of electrical energy saved inside this energy storages to get lower voltage than the power line. They are verry efficient and much smaller than conventional ones.
Because of the current switching the plates of the capacitor or the windings of the coil can vibrate and cause this sounds.
It depends on the components if there is a sound or not and can vary from batch to batch.
So no worry if the supply creates silent noise, its working fully, only different components are used! (as long as it is no super cheap china power supply, they could be very dangerous)
And i think the power supply lives as long as the phone. Computer or TV power supplys are always plugged in too and they have the same technology.
But i always unplug the power supply to save enegy