Is anyone else having any trouble with charging the phone? I was watching a movie on the phone and noticed the battery was getting low so I plugged in the charger and it didn't charge. The phone was pretty hot and after I let it cool off the phone kinda started to charge, it took another few minutes before it finally started to charge.
No issues here. Are you using the stock charger?
Sent from my Nexus 4 using xda premium
Aftermarket. This is the first time it's happened. Guessing it might have to do with the phone/battery getting hot.
I was using an Amazon charger I used for my old phone and wondered why it took so long to charge. That charger only provides 0.8 amps for 5V vs. 1.2 amps for the stock charger. When using the stock charger, it should only take ~3 hours to charge fully according to several reviews. I noticed that the phone charged MUCH faster with the stock charger.
Guys, use the stock charger. It's 1.2 amps and the booklet specifically states to use this charger.
jasonwc said:
I was using an Amazon charger I used for my old phone and wondered why it took so long to charge. That charger only provides 0.8 amps for 5V vs. 1.2 amps for the stock charger. When using the stock charger, it should only take ~3 hours to charge fully according to several reviews. I noticed that the phone charged MUCH faster with the stock charger.
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Does it matter if I just use a micro usb(ASUS or HTC) and plug it to a computer?
ysihaoy said:
Does it matter if I just use a micro usb(ASUS or HTC) and plug it to a computer?
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A computer USB port will generally put out 500 mA. If it works, it will be slower and probably not charge fully. A powered USB hub might put out more amps, but check the sticker on the hub to be sure.
I experienced this today. I ran a dashcam app while it was plugged in on my dash. When the phone got too hot it still detected as plugged in, but did not charge. Its a safety thing. I've had 2 or 3 batteries swell up from heat. And since this one is not removable... That'd be bad.
As far as the amperage goes: I'm pretty sure the phone is going to pull what it will. So if your charger is rated 500mA, still going to draw 1200mA or whatever its rated to pull. So the el cheapo charger will get hot, buzz, and/or break.
Now if you want to use your el cheapo charger, make sure the data wires in the port are disconnected. That'll make it draw less power because the phone will think its a USB port.
Sent from my Nexus 4 using Tapatalk 2
How long til the phone charges up again?
ackliph said:
I experienced this today. I ran a dashcam app while it was plugged in on my dash. When the phone got too hot it still detected as plugged in, but did not charge. Its a safety thing. I've had 2 or 3 batteries swell up from heat. And since this one is not removable... That'd be bad.
As far as the amperage goes: I'm pretty sure the phone is going to pull what it will. So if your charger is rated 500mA, still going to draw 1200mA or whatever its rated to pull. So the el cheapo charger will get hot, buzz, and/or break.
Now if you want to use your el cheapo charger, make sure the data wires in the port are disconnected. That'll make it draw less power because the phone will think its a USB port.
Sent from my Nexus 4 using Tapatalk 2
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Along the same lines, the Nokia Lumia charging plate doesn't work (even though its a QI wireless charging plate). Cuts in and out and sometimes stops all together.
egon27 said:
Aftermarket. This is the first time it's happened. Guessing it might have to do with the phone/battery getting hot.
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That's the problem. Check the output. Stock one pumps out 1.2A. Most aftermarket only do 500mA.
Sent from my Nexus 4 using XDA Premium HD app
---------- Post added at 11:42 PM ---------- Previous post was at 11:41 PM ----------
ackliph said:
I experienced this today. I ran a dashcam app while it was plugged in on my dash. When the phone got too hot it still detected as plugged in, but did not charge. Its a safety thing. I've had 2 or 3 batteries swell up from heat. And since this one is not removable... That'd be bad.
As far as the amperage goes: I'm pretty sure the phone is going to pull what it will. So if your charger is rated 500mA, still going to draw 1200mA or whatever its rated to pull. So the el cheapo charger will get hot, buzz, and/or break.
Now if you want to use your el cheapo charger, make sure the data wires in the port are disconnected. That'll make it draw less power because the phone will think its a USB port.
Sent from my Nexus 4 using Tapatalk 2
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If the charger is rated 500mA it is 500mA. There is no way the phone can actually pull more than that.
Sent from my Nexus 4 using XDA Premium HD app
richteralan said:
That's the problem. Check the output. Stock one pumps out 1.2A. Most aftermarket only do 500mA.
Sent from my Nexus 4 using XDA Premium HD app
---------- Post added at 11:42 PM ---------- Previous post was at 11:41 PM ----------
If the charger is rated 500mA it is 500mA. There is no way the phone can actually pull more than that.
Sent from my Nexus 4 using XDA Premium HD app
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That's the thing. It will pull it, but when it does, it'll just start to overheat the charger. The charger supplies a constant voltage. The phone can vary it's resistance based on if it detects a USB connection (data wires open), or a dedicated charger (data wires closed). Say the charger outputs 5V. The phone is dumb and just looks at the data wires (open/closed). For open it'll run at 10Ohms giving you 500mA. For closed it'll give you 5Ohms giving you 1A.
Put your multimiter on Amps and try connecting it to a wall-wart rated at 500mA. I bet you it will read much much more than 500mA on your multimeter. Might even break the wall-wart or the multimeter if you hold it there long. That's because amperage is based on the resistance! Which comes from the phone. And it'd be impractical to put an ammeter into the phone just to protect your el cheapo charger. lol That's why they just use the open/closed data wire method and expect you to not cheap out on the charger.
Now I will admit some el cheapo chargers may not be able to go over their amperage rating, but the phone will still try to pull more if the data wires are closed thus causing your phone not to charge all the way, or at all.
Bottom line. If you're using an el cheapo charger, make sure it's rated higher than 1.2A or it'll get hot and/or break.
Related
When I woke up this morning I found my tablet at 50% battery and not charging, despite being plugged in. This has never happened before and it was charging fine just yesterday. No changes have been made to the software in a good long while. I've tried three different charging cables so far.
What's stranger still is that the screen comes on when I plug it in, but it still shows battery not charging. I turned it off and left to go see a movie, then when I came back and turned it back on it had actually increased charge but only to 62%. Like it's trickle charging or something.
Anyone experienced this before?
It sounds like your charger went bad and isn't putting out the proper power anymore.
Sent from my Transformer TF101 using xda premium
Put it in a zip lock bag and throw it in the freezer, take it out and try to use it again. The thermal overload may not have reset itself, this has happened to myself and others a lot.
Sent from my Transformer TF101 using Tapatalk 2
I can confirm. This fridge technic save money 2 or 3 times.
Sent from my ST18i using xda app-developers app
Wait, what am I throwing in the freezer and for how long? Tablet or charger?
Also make sure the charging block (where the plug is) is making a good connection where it snaps apart. Same thing happens to me when I first got mine. I put electrical tape around block to solve permanently.
Funnily enough this has just happened to me for the first time today, Ill give the freezer idea a try how long did you put in there for?
We're just putting the charging block in the freezer... right?
Headcase_Fargone said:
We're just putting the charging block in the freezer... right?
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Yeah dude have a read of this : http://www.transformerforums.com/fo...ide-so-your-transformer-wont-charge-boot.html
Left it in for 30 minutes and nothing. Screen comes on, but doesn't register as charging. The wall adapter will charge my Galaxy Nexus though...
Check inside the port on the tablet. Make sure there is no debris, and the contacts are clean. Use a toothpick or something thin to clean as necessary(preferably non conductive).
Sent from my HTC One X using xda app-developers app
Headcase_Fargone said:
Left it in for 30 minutes and nothing. Screen comes on, but doesn't register as charging. The wall adapter will charge my Galaxy Nexus though...
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Exactly the same problem here, usb charging from the pc seems to work but doesn't register as charging
---------- Post added at 02:07 PM ---------- Previous post was at 01:47 PM ----------
c5satellite2 said:
Check inside the port on the tablet. Make sure there is no debris, and the contacts are clean. Use a toothpick or something thin to clean as necessary(preferably non conductive).
Sent from my HTC One X using xda app-developers app
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Ive cleaned all the connectors, the strange thing is the ac power seems to be trickle charging it just as a usb port would.
Put charging into frozen and leave it 10-20 mins
Takeout and wait until it dry
It'll be work now. I'm used to be using this method
LeonLY29A said:
Put charging into frozen and leave it 10-20 mins
Takeout and wait until it dry
It'll be work now. I'm used to be using this method
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Click to collapse
Me and the OP have tried that, and no hope, charges my phone fine, but trickle charges the tf (Might not be charging at all but the screen flashes on when first connecting)
Im on a Ubuntu / Revolver 4 dual boot so im gonna do a re-flash and bring everything back to stock and see how that goes
JoinTheRealms said:
Exactly the same problem here, usb charging from the pc seems to work but doesn't register as charging
---------- Post added at 02:07 PM ---------- Previous post was at 01:47 PM ----------
Ive cleaned all the connectors, the strange thing is the ac power seems to be trickle charging it just as a usb port would.
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Click to collapse
This is exactly what's happening with mine. If I turn the tablet off and leave it plugged in to the wall charger overnight it will go up a few dozen percent. And the wall charger charges my phone fine.
Let me know how flashing stock ROM goes for you please.
The charges supplies two voltages and requires taht any extension cable used be USB 3.0. The extra conductors in the USB3.0 cable ( and in the stock charging cable) are used to sense a gnd on pin 7 of the USB 3.0 configured connector. When that Gnd signal is present, the charger outputs 15V to charge the TF or dock. If you use a USB 2.0 extension cable ( extra conductors missing) or the charger does not see the gnd on pin 7 it reverts to 5V out. Your problem is that it is not seeing the gnd. on pin 7. Check the larger connector and the one on the bottom of the TF for bent or dirty pins. Your other option is to get the Dynex universal video power supply. Set the output voltage to 11V and just use USB 2.0 cables to charge. Remember not to use the dynex set to 11V to charge your cell phone or you will get smoke.
Can someone look at the port on the tablet itself and tell me if all pins should look identical? I am seeing what could be what looks like plastic debris around one of the pins toward the right. Or it could be a blocked pin used as a key to prevent plugging it in upside down. Not sure what it's supposed to look like.
I picked up a replacement wall charger today and it won't charge either. Looks like it's definitely an issue with the pins of the tablet itself. I put in a support request from Asus, but I don't know how much help they'll be. Especially if my warranty is up.
have you tried using another "asus" sync cable?
i sent my charger away for RMA as i thought it was gone (could trickle charge and pc would recognize tablet when connected - but it would not make a dent on the dock, not even the charge indicator light)......it still ended up being the sync cable at fault.
They sent me the old adaptor back with a new cable and alls well.
scottyf79 said:
have you tried using another "asus" sync cable?
i sent my charger away for RMA as i thought it was gone (could trickle charge and pc would recognize tablet when connected - but it would not make a dent on the dock, not even the charge indicator light)......it still ended up being the sync cable at fault.
They sent me the old adaptor back with a new cable and alls well.
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Yeah, I've actually tried four cables now. I had bought two extras off Ebay a while back and they were still in their bags. I tried those two, the cable the tablet came with, and a fourth one that came with the replacement wall charger I just picked up today. Between four cables and two chargers it definitely has to be the tablet at this point.
I just noticed today, that my HTC phone basically has the same setup. The same charger, then the USB to micro-USB cable. So would it be the same thing to charge with either cable?
I was shuffling with the 2 chargers today.. but if I only need to use one, then that's even better! And I can travel with just 1 charger for my 2 devices too!
Shouldn't be a problem i hardly ever use the correct usb charger for my devices apart from tablets that need the higher power output.
The nexus may not work on the phone charger but the phone should work fine on the nexus charger.
Sent from my Nexus 7 using Tapatalk 2
The Nexus7 charger is 5v 2A, look at the HTC amp output if it is 1A it will take longer to charge the Nexus7, if it can even keep up if the unit is on.
I would use the Nexus7 charger for the phone and tablet if you want to cut down on taking chargers while going on trips.
I use the Nexus7 charger on my ET4 and it goes to full charge pretty quick....lol
Unknown Zone said:
The Nexus7 charger is 5v 2A, look at the HTC amp output if it is 1A it will take longer to charge the Nexus7, if it can even keep up if the unit is on.
I would use the Nexus7 charger for the phone and tablet if you want to cut down on taking chargers while going on trips.
I use the Nexus7 charger on my ET4 and it goes to full charge pretty quick....lol
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Click to collapse
Yeap you are correct, my phone charger is 1A.
Will using Nexus 7's 2A output charger harm my phone? Or will it just charge my phone faster? (which sounds like a great deal btw:laugh
thunder9111 said:
Yeap you are correct, my phone charger is 1A.
Will using Nexus 7's 2A output charger harm my phone? Or will it just charge my phone faster? (which sounds like a great deal btw:laugh
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Edit: In short..no it won't damage your phone
i use my kfire charger because the cord is longer lol. google skimped on the charger cord it's !!short!!
t_007_v2 said:
i use my kfire charger because the cord is longer lol. google skimped on the charger cord it's !!short!!
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Another good idea! My HTC's charger cable is longer..
I guess I'll use the Nexus 7's charger with the HTC cable = win
I prefer the Kindle Fire charger or the Playbook or HP touchpad charges took the OEM charger that comes with the Nexus 7
I just got another Playbook charger just for that purpose, it is 6 ft long, much longer than the Nexus charger.
http://forum.xda-developers.com/showthread.php?p=29603728
Sent from my Nexus 7
As long as the charger puts out 5v you'll be fine.
Also, stories on xda suggest not gaming on the n7 on low battery while plugged into a charger other the packaged one.
Just comparing my S3 with my sisters S3, i realised that the bundled usb cable is actually thicker on more recently sold phones.
I noticed this after trying different chargers to try getting her phone charging properly again, and found that her thinner cable was providing less power then say a completely hard wired travel mate charger, In result, her usb cable was providing enough juice to maintain a level of charge but not providing the power necessary to charge it.
I'm used to LION battery circuits being on a switch setup, so that the device is powered completely from the external source during the charge, however the charging on these phones (and possibly other samsung phones) passes through the battery itself, so it does seem that inferior cables can and do affect charging times, atleast while the device is operating.
So to those complaining about slow/no charge, check the quality of your bundled cable, the thicker cables are certainly harder to bend and feel more durable than those sold with the phones earlier in the year.
I found that a good way to check this is when the battery is at 80%, a good quality cable or travelmate charger will increase the current voltage value in battery stats (*#0228#) from 4000xish to 4250+ upon plugin. The inferior cable (or maybe it was damaged even?) may increase it to 41xxish and the battery will appear to take forever to charge, or not at all.
Squall-Leonhart said:
Just comparing my S3 with my sisters S3, i realised that the bundled usb cable is actually thicker on more recently sold phones.
I noticed this after trying different chargers to try getting her phone charging properly again, and found that her thinner cable was providing less power then say a completely hard wired travel mate charger, In result, her usb cable was providing enough juice to maintain a level of charge but not providing the power necessary to charge it.
I'm used to LION battery circuits being on a switch setup, so that the device is powered completely from the external source during the charge, however the charging on these phones (and possibly other samsung phones) passes through the battery itself, so it does seem that inferior cables can and do affect charging times, atleast while the device is operating.
So to those complaining about slow/no charge, check the quality of your bundled cable, the thicker cables are certainly harder to bend and feel more durable than those sold with the phones earlier in the year.
I found that a good way to check this is when the battery is at 80%, a good quality cable or travelmate charger will increase the current voltage value in battery stats (*#0228#) from 4000xish to 4250+ upon plugin. The inferior cable (or maybe it was damaged even?) may increase it to 41xxish and the battery will appear to take forever to charge, or not at all.
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Is there a way to see the charging current?
Have u check the five pin on the cable? Mine missing 1 pin, making the charger slow. Already compare it with working charger.
Sent from my GT-I9300 using xda app-developers app
Use current widget from market for current flow to device
Sent from my GT-I9300 using xda app-developers app
azrieqb said:
Have u check the five pin on the cable? Mine missing 1 pin, making the charger slow. Already compare it with working charger.
Sent from my GT-I9300 using xda app-developers app
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The 4th (or second, depending on which way you're looking at it) pin does not exist on any USB to micro or micro USB adapter cables.
see http://forum.xda-developers.com/showthread.php?t=1174919
standard usb plugs only have 4 pins, 2 for data data, 1 for ground and the last voltage, so this extra pin is never available on any adapter cables, including phone charge cables - its not even present in my travel mate charger, so that pin missing has nothing to do with the slow charge.
I am very sure that my wife charger have 5 pin and working fine, and mine lost 1 pin very slow in charging. We both using the same phone. Btw, I am referring to the pin that's connected to the phone. Not the one to the plug.
Sent from my GT-I9300 using xda app-developers app
My phone only goes into charging mode when I plug it in to my computer. Anyone have this problem?
tawalla said:
My phone only goes into charging mode when I plug it in to my computer. Anyone have this problem?
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Have not had this problem myself. Try another USB charger? Just about anything that's 500mA will work (albeit not nearly as fast as the 2.0 amp charger that came with your phone).
I suspect your charger.
Aou said:
Have not had this problem myself. Try another USB charger? Just about anything that's 500mA will work (albeit not nearly as fast as the 2.0 amp charger that came with your phone).
I suspect your charger.
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It was the cable. I really didn't suspect it would be that since I have barely used it and I've only had it for two weeks. Thanks!
tawalla said:
It was the cable. I really didn't suspect it would be that since I have barely used it and I've only had it for two weeks. Thanks!
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Click to collapse
Good to hear it was a simple solution. You might check with the place you purchased it from to see if they will provide a new cable. I guess we can just be glad you didn't find out about the cable during the middle of an Odin flash...
Aou said:
Good to hear it was a simple solution. You might check with the place you purchased it from to see if they will provide a new cable. I guess we can just be glad you didn't find out about the cable during the middle of an Odin flash...
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No kidding. That would hurt a little
I am now having this problem after my phone got wet. No AC or DC chargers will work but the phone will always charge from a computer or even the USB interface of a car.
Even if I can get an AC or DC charger to be recognized, the phone will show as charging but the battery will continue to decline.
It is making no sense to me though I assume getting the phone wet partially fried something.
Yeah the voltage is increased to charge you battery when on AC power, at the kernel level. USB voltage is lower. So i'd say surely fried, and will no doubt stop working sooner or later.
I know that on my s2 I had an issue where it would say its charging and when I woke up in the morning no charge at all. The pin/row of pins or bar if you will would bend down and not make good contact. I used a tooth pick to pry up on it every time it did that.
Jnewell05 said:
Yeah the voltage is increased to charge you battery when on AC power, at the kernel level. USB voltage is lower. So i'd say surely fried, and will no doubt stop working sooner or later.
I know that on my s2 I had an issue where it would say its charging and when I woke up in the morning no charge at all. The pin/row of pins or bar if you will would bend down and not make good contact. I used a tooth pick to pry up on it every time it did that.
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Thanks. I didn't realize that the charging port was removable on the S4 so I swapped that out and all is fine now. :good:
Ummm... No its not the voltage. It is the ID pin. The voltage stays the same. The only actual difference is the milliamp mAH output of the charger. A normal USB plug has 500mA our charger has 2000. How the phone tells the difference? The 2 data pins inside he charger are shorted together. The voltage always stays the same.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
OK, so for some reason, when I charge my tablet and use it at the same time it doesn't charge but rather still discharges slowly. I am using the included ASUS transformer because it has a higher output... Supposedly. Anyway, I set my tablet to charge overnight and I wakeup and don't find it charged all the way. What is up?
Sent from my Nexus 7 using xda app-developers app
Try charging it with the device turned off. If it won't charge then, you've probably got some sort of hardware problem (charger, power circuit, battery). Also try a different charger in case yours is dying. And try a different cable... i've definitely had some cheap ones that just wouldn't stay in the socket.
mooseo said:
Try charging it with the device turned off. If it won't charge then, you've probably got some sort of hardware problem (charger, power circuit, battery). Also try a different charger in case yours is dying. And try a different cable... i've definitely had some cheap ones that just wouldn't stay in the socket.
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I'll try a different cable. That might be it as the cable is very easy to loosen. The tablet charges just fine.... just not fast enough. Reminds me of the old usb car chargers. The output would be too little compared to what the phone is using and it would discharge at a slightly slower rate.