Discharging while charging - MDA II, XDA II, 2060 General

I am trying to charge my xda using the cradle but i notice that the battery is discharging even though the battery says that its charging. does anyone encountered the same problem? please help.

had this once, are you charging through USB?
Sometimes the charging part of the usb connection would drop out on my cradle, could be fixed by either plugging the charger into the cradle or whacking PC with passing kittens or other soft objects
Turned out my USB port had been knocked at some point and was SLIGHTLY mis-aligned with the case, what the hell was happening INSIDE the case i dont know, but i pulled the USB port back in-line and it worked ok from then on.
I know the chances of it being EXACTLY the same for you are s-l-i-m ... but it may be worth looking at.

Either that or you are using a charger designed for an XDA 1 not 2.
They do exactly what you have just described.

Yup im charging using the USB. I noticed that when you let it discharge until it drains the battery then let it stand in the cradle for a few minutes..the battery will then recharge and regain power

Related

charging problem

Today I had pluged my usb cable in my cell and when I unplug the cable my battery was 30% charged but as soon I unplug the usb cable i got battery low warning and suddenly my cell shutdown. When I start the cell it shows -1% battery and now if I chrage the battery from charger it wont showing charging (animated charging bar) but its actualy charging it very slowly but now if I again plug usb cable and unplug it the cell again shutdown instantly.
I have tried different pcs and cable but the problem still there. Should I hard reset it? I dont install new software or change any settings durring the day.
If there isn't any important data on the phone,yes , you can try the Hard reset,but most probably the cause for not charging, is something else and not the rom (OS),so Hard reseting will not boost up the charging.If the device is not charging ,its rather more of a Hardware issue than a Software. Try to charge with a Wall charger (Mains),if it charges normally,then the fault lies in the usb cable,it might be faulty or try with other usb input port on the pc,but if it still doesn't charge with the Wall charger,than most probably the mini usb port of the phone is faulty or damaged or it might be that the battery is giving upon you.Confirm and check all these options.
I have already tried the external (home) charger and different usb cable and pc.
I cant hardreset as the battery is lower then 50% charged.
Just for your knowledge that the active sync is working fine and ithink mini usb port is not totaly dead,
And the orange light on top is keep blinking when I have plugeed usb cable.
And battery status show +21mA and +68mW only. What it should be?
BTW battery status icon bar keep animating while I have pluged usb cable. does it mean its charging.
Also let you know that this morning my battery last to below 10% charged and after that the problem starts.
And after pluging usb cable for few minutes if i do softreset then after reboot the system shows few % battery charged ( around 10%) but its drains very fast (in 2-5 minutes).
azfar said:
BTW battery status icon bar keep animating while I have pluged usb cable. does it mean its charging.
Also let you know that this morning my battery last to below 10% charged and after that the problem starts.
And after pluging usb cable for few minutes if i do softreset then after reboot the system shows few % battery charged ( around 10%) but its drains very fast (in 2-5 minutes).
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Click to collapse
Ah !
So it has gone below the retention charge, required to start the charging circuit ,thats why its not charging.
Now either try to charge with a wall charger capable of out put of 1.0 amp or you need to 'Jump' start the battery.
i dont understand can you explain it a bit more.
This it what he's trying to say:
The battery has a well-documented bug. If you drain it below a certain amount (around 5% IIRC) then it can ONLY be charged from a wall charger, regardless what else the phone says or does. Your symptoms are weirder than usual, but not too surprising.
Replacement batteries are cheap and readily available. Start shopping for a new one while you leave the phone on the wall charger for at least 6 hours, with the phone OFF. This is a last-ditch attempt to recover your battery. If it still misbehaves after that, it's probably toast.
Thanks for explanation.
does the usb cable hack work (connect the red and black cables to battery + and -)?
azfar said:
Thanks for explanation.
does the usb cable hack work (connect the red and black cables to battery + and -)?
Click to expand...
Click to collapse
YUP !
Thats what is 'Jump' start.If the battery is only below the retention charge,it can be very easily recouped by this trick.If it works fine,otherwise get a new battery,many have recovered their batteries by Jump start.
Check out this link :-
http://forum.xda-developers.com/showthread.php?t=374108
thanks for the link.
OK jump start do the trick (charged the battery) but my phone is still draining the battery very quickly (around 1% a minute) and I havent check the home charger or usb cable charging.
azfar said:
OK jump start do the trick (charged the battery) but my phone is still draining the battery very quickly (around 1% a minute) and I havent check the home charger or usb cable charging.
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Click to collapse
ok,good if it has started to charge,now don't ever let it fall below atleast 30%,how did you charged it if not through home charger or usb cable,get the battery fully cgarged with home mains charger and then check the drainage of the battery.
Secondly,either the battery cells have gone weak and not retaining the charge for long or you are using GPRS more often,coz it drains the battery quite rapidly.it all depends on your usage.
I just charged the battery from naked usb cable and it charged it but the battery drainage problem still presist and if I charge the battery from usb or charger the os dosent shows it charging. I think i should look for new battery.
Can you explain me what kind of battery should i choose for wizard as here too many local batteries are available and I dont know about correct specs for battery like mah, mwh, volt, etc and kindly also let me know I also doubt on my home charger what kind of charger should I get (mah, mwh, volt, amp)?
BTW I dont fully charge (100%) the battery yet, do i still need a one full charge and I also dont shock the battery by 1amp charger aswell.
azfar said:
I just charged the battery from naked usb cable and it charged it but the battery drainage problem still presist and if I charge the battery from usb or charger the os dosent shows it charging. I think i should look for new battery.
Can you explain me what kind of battery should i choose for wizard as here too many local batteries are available and I dont know about correct specs for battery like mah, mwh, volt, etc and kindly also let me know I also doubt on my home charger what kind of charger should I get (mah, mwh, volt, amp)?
BTW I dont fully charge (100%) the battery yet, do i still need a one full charge and I also dont shock the battery by 1amp charger aswell.
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Click to collapse
Yes ! you must first fully charge the battery and than check the drainage.
Secondly I can't recommend any specific battery,check the specifications on the battery and verify it.
If the home charger is doubtful,you shud get an original PDA phone charger capable of 1.00 amp out put.
ok I also don't able to installnew rom on it, its giving me erorr that phone is not connected to usb cable etc.
Now the active sync is not bieng connecting too and I think now my mini usb port is faulty is it repairable?
azfar said:
Now the active sync is not bieng connecting too and I think now my mini usb port is faulty is it repairable?
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Click to collapse
Yes it is repairable or replaceable for that you'll have to contact the cellular company from whom you bought the phone,if its still under warranty. Otherwise get it repaired from any mobile repair shop.
ok may I know from where you belong?
azfar said:
ok may I know from where you belong?
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Don't you see my country flag on my posts and my city of residence is also mentioned there
hmm I see.

Battery drained out totally while connected to PC

This morning I almost got a shock because my X1 stayed black and seemed to be totally dead. Luckily I soon figured out that the Battery was empty, no currrent left on it to let the device even blink. But what happened? When I went to bed yesterday I connected it to the USB cable and left it charging! Everything seemed the same as all the times before. What may have caused this?
Only things that were diffrent from my usual charging procedure:
The Cable were connected to the PC USB Slot.
I shut the PC (laptop in this case) down but the USB Slots had still power. The charging lights of my X1 followed their normal pattern.
Normally I unplug the power cable from PC to prevent the USB Slots to have power. Because my USB harddisk keeps rotating while having power from the USB.
Normally I charge the X1 directly from the power outlet. X1 turned off.
So this time PC was off. X1 was off. USB Slots still got power. X1 connected with USB Slot. X1 seemed to charge normally.
Well, the result was that my X1's Battery was totally empty the next morning. Obviously instead of charging the USB slot drained of the whole battery power! But note that the charging lights were active as normal and the Battery was still warm in the morning.
Perhaps this helps others to prevent such issues.
you are crazy if you:
1. charges from laptop
2. from powered OFF device
you can repeat this case endless - xperia will be drained
Dadaism said:
This morning I almost got a shock because my X1 stayed black and seemed to be totally dead. Luckily I soon figured out that the Battery was empty, no currrent left on it to let the device even blink. But what happened? When I went to bed yesterday I connected it to the USB cable and left it charging! Everything seemed the same as all the times before. What may have caused this?
Only things that were diffrent from my usual charging procedure:
The Cable were connected to the PC USB Slot.
I shut the PC (laptop in this case) down but the USB Slots had still power. The charging lights of my X1 followed their normal pattern.
Normally I unplug the power cable from PC to prevent the USB Slots to have power. Because my USB harddisk keeps rotating while having power from the USB.
Normally I charge the X1 directly from the power outlet. X1 turned off.
So this time PC was off. X1 was off. USB Slots still got power. X1 connected with USB Slot. X1 seemed to charge normally.
Well, the result was that my X1's Battery was totally empty the next morning. Obviously instead of charging the USB slot drained of the whole battery power! But note that the charging lights were active as normal and the Battery was still warm in the morning.
Perhaps this helps others to prevent such issues.
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Click to collapse
Don't charge it in standby mode, how stupid is that?
What? I don't see any reason not to charge it from a laptop. Even if it's powered off, as long as the USB ports have power (mine has a BIOS setting for this) there is nothing wrong with that.
Also, what does it matter if you're charging the phone powered off or powered on?
On an interesting note, however, the same thing actually happened to me last night.
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty.
I have no idea what might have caused this, and it hasn't happened to me before.
Next time dont power off ur X1,
if same happends then your battery is suffed.
Ethermind said:
1. charges from laptop
2. from powered OFF device
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Click to collapse
1) This was accidently
2) Why? I dont like it when mobile phones are on standby while I'm asleep. Charging the device when powerd off should make absolute no difference? Worked everytime but the one where it was connected to a powered of laptop.
Why will the Xperia been drained?
poetryrocksalot said:
Don't charge it in standby mode, how stupid is that?
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Click to collapse
Do you mean standby or powered off? Why should it make any difference? And why does the battery getting drained?
Jasand said:
Next time dont power off ur X1,
if same happends then your battery is suffed.
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Click to collapse
My Battery is quite healthy. *lucky*
jjm34 said:
What? I don't see any reason not to charge it from a laptop. Even if it's powered off, as long as the USB ports have power (mine has a BIOS setting for this) there is nothing wrong with that.
Also, what does it matter if you're charging the phone powered off or powered on?
On an interesting note, however, the same thing actually happened to me last night.
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty.
I have no idea what might have caused this, and it hasn't happened to me before.
Click to expand...
Click to collapse
What does this BIOS setting say? I assume that my USB slots had too less power when laptop is off. But its very strange that your Device got drained while connected to the wall socket and in Standby mode. Maybe my USB slots were not the cause? Weird ...
Dadaism said:
What does this BIOS setting say? I assume that my USB slots had too less power when laptop is off. But its very strange that your Device got drained while connected to the wall socket and in Standby mode. Maybe my USB slots were not the cause? Weird ...
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Click to collapse
It is weird. Since your phone was off I don't think it would use any of its battery power.
I have a ThinkPad, and IIRC the BIOS setting is something like "Always On USB", in the USB settings. With this turned on the laptop will power its USB ports even when turned off, as long as the laptop itself has the power cable connected.
Dadaism said:
2) Why? I dont like it when mobile phones are on standby while I'm asleep. Charging the device when powerd off should make absolute no difference? Worked everytime but the one where it was connected to a powered of laptop.
Why will the Xperia been drained?
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Click to collapse
from powered off PC, when power on usb enough to wakeup PC or feed LEDs,
but not to charge another device. in that case power go into the weaker side, means from x1 -> pc
I had this problem too... seems after hard resetting my phone one time, one option was different to normal after I hard reset,
Click on the battery icon at the top of the screen
Theres a tick box, that says:
"When device is turned on, do not charge the battery when connected to the PC."
this was ticked for some reason. Unticked it, and all was fine.
Try it
I noticed this happened to me too for the first time, after i put in the wall charger and the the phone seemed to charge, i found it completely dead after 3 hours and the battery was warm, running a vanilla R1A
Battery
Also I think for the X1 to charge- it requires activesync. from my experience, when connected to the pc- without activesync, the X1 would indicate charging- but never actually gets charges. Hence when your notebook is off, activesync obviously wouldn't be running-> no charge either.
chinkyeyed09 said:
Also I think for the X1 to charge- it requires activesync. from my experience, when connected to the pc- without activesync, the X1 would indicate charging- but never actually gets charges. Hence when your notebook is off, activesync obviously wouldn't be running-> no charge either.
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Click to collapse
I assume a turned off PC would only power its USB port power pins and wouldn't respond to any transmissions on the data pins. So to the phone it should look just the same as if it were connected to the wall charger (just probably with a bit less power).
Also, when I have my phone connected to my laptop through USB Internet Sharing it does actually charge (it doesn't connect to ActiveSync when using Internet Sharing).
The device should charge in any USB mode as the USB port's power pins supply power regardless of the protocol used on the data interface.
Does the X1 have no safety feature that does prevent the battery from being drained?
In my case I assumed it happened because of the USB Port had too less power. But when you turn off your PC (+USB power) and let the X1 connected it would still mean a movement of current from the X1 Battery --> inside the PC as long as they are not on the same potential. If the PC is earthed somewhere (for example connected to the wall socket) the Battery would be drained out totally! They never get to the same potential as long the Battery has power.
As jjm34 mentioned, if the PC is on and USB slots powered normally the X1 should charge in any case.
Maybe this is not the real cause of the problem. People are reporting that the X1 got drained while connected to the wall charger! That's really weird. How can the battery being drained by this? Any suggestions @Ethermind ?
jjm34 said:
I plugged the phone into the wall socket to charge it (battery was at about 20%) and I actually saw the battery percentage rise as I was still using the phone. I turned it on in the morning (from standby, not powered off), and as soon as I pulled the power cable it went dead as the battery was completely empty
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Click to collapse
viperhead said:
I noticed this happened to me too for the first time, after i put in the wall charger and the the phone seemed to charge, i found it completely dead after 3 hours and the battery was warm, running a vanilla R1A
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Click to collapse
It could be:
It's drawing power FROM your x1 to provide power for laptop internal components.
Dadaism said:
...............
Maybe this is not the real cause of the problem. People are reporting that the X1 got drained while connected to the wall charger! That's really weird. How can the battery being drained by this? Any suggestions @Ethermind ?
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Click to collapse
Mine has. Put it on the wall charger and the charging symbol is there. It reaches 100%, the charging symbol disappears and it shows 100. Then in the morning it's at 90% even though it was still on the wall charger.
I've not left it plugged into a 'running' pc or laptop long enough to see if the phone runs off the battery after it's reached 100%, but it shows the same symptoms. Charging symbol until 100%, then it changes to 100%, no more charging symbol.
Even MSVC stops reporting '% & charging', just reports the % level once it's reached 100%.
I made 2 observations :
It seems the X1 need usb data pins active to charge the battery. The wall plug has something enabled to give power to the data pins (by the way, the wall plug can charge an iPod or an iPhone, it works perfectly). I tried using a cheap wall plug bought in china, no way to charge the X1 or my iPod as there was no power on the data pins. So when connected to an off PC, I'm not sure what's happening. If someone can give a try to analyze this with a multimeter, that would be nice.
It seems also the X1 stop charging after going to 100 %, and won't charge anymore unless you unplug - replug it.
Thanks for your contribution.
Maybe there exists a real hardware failure.
Normally the X1 should charge until the Battery reaches the 100% level. Then there has to be a switch that prevents the Battery from getting overloaded which is good. So charging stops.
The switch blocks charging until you unplug the device once it has reached the full battery level. Thats ok, too. You should not loose much Battery after a full charge and with a device on standby or powered off. And it prevents the Battery getting reloaded at high percentages. Otherwise it would start charging at 99% and stop again at 100 and so on, all the time.
But now assume the switch has sometimes, somehow a failure.
Instead of preventing current to get inside the battery it enables that current can flow into the wall charger.
I do not expect that the current flows into the power outlet. Maybe it gets "lost" in the current transformer that you've plugged into the power outlet (Thats the one you plugged the USB cable in.). Lost means it simply gets warm / hot.
Measuring the current with a Multimeter would be a nice proof. If someone has the technical knowledge and qualification to disassemble the current transformer and the USB cable, you have the go .
I haven't tested it, but I doubt the current flows back into the charger, or back into the USB port on a laptop / pc.
But how does the Battery discharge then? When there is no current flowing out it will stay loaded. (it goes like d(q)/dt+div(j)=0 )
Did you all charge your phone while it is on (standby)? I noticed the same problem when I charged my x1 while it is standby. When I pull the plug from my laptop (I used my laptop for charging, laptop powered on), I get 90% battery life. It seems like there is a switch to cut out the power input if the battery reaches 100% and power the phone from the battery.
Try to charge your phone while it is off. I did it yesterday, and it had stopped charging even before I unplug it from wall output, and I got 100% battery life.
Btw, this is not confirmed yet... it is just based on my experience...

[Q] Overnight: Charging to 100%, then discharging while still connected?

Hi there,
got a strange problem.
I plug in my N4 in the evening, it is loading up to 100% and there it begins to DISCHARGE (or in other words, stops to hold the battery at 100%) although still connected to the charger. In the morning I unplug the phone and have just around 70% left ... see attached screenshot.
Using stock charger and cable that came with the phone.
I hope this is not intended by Google? Running Android 4.2.1 Stock.
is this the only time it happened?
It is probably because of the charger. They definitely didn't include the best charger out there try another charger, you'll see improvements.
Sent from my Nexus 4 in a Faraday cage
KyraOfFire said:
It is probably because of the charger. They definitely didn't include the best charger out there try another charger, you'll see improvements.
Click to expand...
Click to collapse
Thanks! Used my equipment (powered USB hub with another micro USB cable) from old phone until yesterday, and read about charging problems when NOT using the charger and cable that came with the N4. To see if that is maybe the problem I therefore unpacked the "stock" cable and charger - but it didn't solve the problem.
The most strange thing is, that it charges perfectly up to 100%! I would expect then that it stops charging to avoid overloading, but that holds the charge level at 100% until unplugged. I think this logic is not within the charger, but controlled by the phone itself (Software / Hardware Unit)?
IINexusII said:
is this the only time it happened?
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Click to collapse
Have the N4 about 1 week now and I realized this happening at least 4 times now. I'm usually plugging it in every evening and unplug it in the morning.
Its intended as a safety measure so it doesn't over charge when its 100 percent.... It's always been that way
Sent from my Nexus 4 using xda premium
Locksmith81 said:
Its intended as a safety measure so it doesn't over charge when its 100 percent.... It's always been that way
Click to expand...
Click to collapse
Hmmm ... never experienced this 15 years mobile phones (at least 4 of them using Android and tons of different ROMs ...). What would be the purpose to plug in your phone in at 22pm, stop charging at 1am and begin the fresh day at 7am with again 30% loss of capacity? I would need to carry my charger stuff all day with me ...
As I said, I fully understand that it stops charging at 100% to avoid overloading - and also see the sense in this here -, but usually it should HOLD it at 99-100% until you unplug and not lose capacity while still connected to the charger.
Cheers
did you plug it into a USB hub that was plugged into a computer? that might be your problem. My N4 has issues charging from USB ports... it never holds charge properly.
This happened to me previously, ended up swapping my charger back to my Samsung OEM one and havent had the problem again.
Another time that this could happen is if you're charging via your USB port on your computer and you shutdown your computer which it will still show the charging icon but the status says not charging which could be changed by replugging the phone and/or having BIOS settings that enable usb power draw etc...
Just found this one ... maybe I'm not explaining my case very well, but it seems I am not alone ...
https://code.google.com/p/android/issues/detail?id=39919
beegbear said:
did you plug it into a USB hub that was plugged into a computer? that might be your problem. My N4 has issues charging from USB ports... it never holds charge properly.
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Click to collapse
UZ7 said:
This happened to me previously, ended up swapping my charger back to my Samsung OEM one and havent had the problem again.
Another time that this could happen is if you're charging via your USB port on your computer and you shutdown your computer which it will still show the charging icon but the status says not charging which could be changed by replugging the phone and/or having BIOS settings that enable usb power draw etc...
Click to expand...
Click to collapse
Yesterday I used the wall plug. All the years before I used a SEPARATELY POWERED usb hub. Even if the PC is shut, the hub provides power to the ports. Anyway, it doesn't matter - Charging is working perfectly on wall plug, usb hub, stock cable, non-stock cable ... before reaching 100% and phone disscharges. Picture in 1st post illustrates the disscharge while still "charging" (last bar at the bottom)
it's def. not normal. mine doesn't discharge, it can stay plugged in all night and it'll say 'CHARGED'
beegbear said:
it's def. not normal. mine doesn't discharge, it can stay plugged in all night and it'll say 'CHARGED'
Click to expand...
Click to collapse
Exactly what I would expect! Now that I found the others on code.google.com having the same issue I think there was a batch of devices having it and that I might need to RMA ...
Well the reason why I was mentioning the charger (unless you've tested another one) is because I was using the original LG oem charger and for a while it would give inaccurate readings on multiple occasions. Example being I woke up (used wall charger) and it said 70-80% and the charge icon was still there but on the status it said 'not charging'. Another time was when it said 96%, unplugged and replugged and it charged to 100%. Then I use the phone for a couple of seconds and it drops down percentage again 96%~ and when/if charged it will say 100% again (giving a false reading).
I was thinking it was the cord because I used my bro's LG charger and it charged the phone 96, 97, 98, 99, 100 and not 96 -> 100% therefore the cord may have been the problem. Went back to my Samsung OEM charger and it has been fine since then and never had any discharging.
Are you using stock kernel?
UZ7 said:
Well the reason why I was mentioning the charger (unless you've tested another one) is because I was using the original LG oem charger and for a while it would give inaccurate readings on multiple occasions. Example being I woke up (used wall charger) and it said 70-80% and the charge icon was still there but on the status it said 'not charging'. Another time was when it said 96%, unplugged and replugged and it charged to 100%. Then I use the phone for a couple of seconds and it drops down percentage again 96%~ and when/if charged it will say 100% again (giving a false reading).
I was thinking it was the cord because I used my bro's LG charger and it charged the phone 96, 97, 98, 99, 100 and not 96 -> 100% therefore the cord may have been the problem. Went back to my Samsung OEM charger and it has been fine since then and never had any discharging.
Are you using stock kernel?
Click to expand...
Click to collapse
I'm on 4.2.1 stock yes.
Thing is, that I'm not plugging it out! While being connected it suddenly starts to disscharge - Why the heck would you disscharge when you have a power source connected?! The "event" invoking the disscharge to me is the reach of 100%. Maybe this is a misbehavior of the overloading protection, to stop charging (as intended), but not restarting to charge at lets say 99% or 98% to get back to 100%. This would mean that when I'm using navigation in my car I would need to reconnectfrom time to time to trigger the charging again.
Traxter said:
I'm on 4.2.1 stock yes.
Thing is, that I'm not plugging it out! While being connected it suddenly starts to disscharge - Why the heck would you disscharge when you have a power source connected?! This would mean that when I'm using navigation in my car I would need to reconnect once and then to trigger the charging again.
Click to expand...
Click to collapse
Yeah I know what you mean but its odd that I had this problem as well but disappeared when I swapped.
As for my USB/PC, that charges when the computer is on and off but when I turn it off, I would have to replug the phone to get it started again as it will have the same "charging icon" w/o it actually charging. My guess is that if the power source loses its power, even if its temporary it will stop charging. But when I using my Skyrocket a few months back I never had to replug the phone onto my computer to get it charging again but I do know that the computer will temporarily cut off power when you shutdown and bring it back to charge plugged devices. (didnt change any power states in BIOS).
So most likely it is something with the phone but it could also be a setting or some software error triggering a fail-safe or something.
UZ7 said:
Yeah I know what you mean but its odd that I had this problem as well but disappeared when I swapped.
As for my USB/PC, that charges when the computer is on and off but when I turn it off, I would have to replug the phone to get it started again as it will have the same "charging icon" w/o it actually charging. My guess is that if the power source loses its power, even if its temporary it will stop charging. But when I using my Skyrocket a few months back I never had to replug the phone onto my computer to get it charging again but I do know that the computer will temporarily cut off power when you shutdown and bring it back to charge plugged devices. (didnt change any power states in BIOS).
So most likely it is something with the phone but it could also be a setting or some software error triggering a fail-safe or something.
Click to expand...
Click to collapse
I see definitely some issues in the charging logic in both of our cases here. You shouldn't have to replug your phone if you send your PC to sleep, as long as it still outputs the USB power. Since I would not expect the decision to charge or not to charge in the wall plug or in the USB hubs, I can only hope it is not a hardware problem of the charging electonic, but a software problem which could be patched. Also wouldn't I wonder if this has to do with the wireless charging option of the phone ...
come to think of it i had the same problem. charging from the PC when off via USB it would do the same thing as OP. charging through the wall works fine.
Well just found out I am maybe reposting the issue as I didn't find this initially ... similar (or same?) problem described here: http://forum.xda-developers.com/showthread.php?t=2031246

[Q] Battery drains when plugged in

I have a nexus 7 1st generation, the battery drains when it is plugged in so it doesnt charge, however, it does charge when turned off.
I have tried two different wires, I charge using the wall socket.
I have tried using different sockets but I still experience the same problem.
I haven't rooted it or anything
I've been on trouble shooting forums etc and have installed battery moinot widget, its says Status: discharging AC plugged in
Health: good
Temperature: 27°C
Voltage:3907
Capacity: 2854/4325
Battery flow: -612mA ( -14.15%/hr)
I know people usually ask if there are any apps using a lot of battery but right now 77%= screen, 4%= android system, the other is used up by other apps it only using about 2% each
I dont understand what it is because if it was something to do with the connection it wouldnt charge when off, but it does, just not when turned on
Would any factory reset help?
Any advice????
Mine has done that sporadically. With USB and dock. Usually a reconnect will get the current flowing. There's a thread here somewhere suggesting charging on the 500ma computer usb connecting and reconnecting a few times. I think it's the USB daughter board.
Sent from my Le Pan TC1020 using Tapatalk
OK, can't find original thread. I suspect the battery is too hot and the charge delayed. Then once in deep sleep it never starts the charge. I'm going to set WiFi on while charging, hopeful a sync will wake it to resume charge.
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claire13524 said:
I have a nexus 7 1st generation, the battery drains when it is plugged in so it doesnt charge, however, it does charge when turned off.
I have tried two different wires, I charge using the wall socket.
I have tried using different sockets but I still experience the same problem.
I haven't rooted it or anything
I've been on trouble shooting forums etc and have installed battery moinot widget, its says Status: discharging AC plugged in
Health: good
Temperature: 27°C
Voltage:3907
Capacity: 2854/4325
Battery flow: -612mA ( -14.15%/hr)
I know people usually ask if there are any apps using a lot of battery but right now 77%= screen, 4%= android system, the other is used up by other apps it only using about 2% each
I dont understand what it is because if it was something to do with the connection it wouldnt charge when off, but it does, just not when turned on
Would any factory reset help?
Any advice????
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Click to collapse
I had the same problem with mine. However, for some reason when i used an HTC charger (with the usb to AC adapter) it was charging faster than losing charge. Once i changed chargers to one with a shorter but thicker cable, i never had the problem again, even with the brightness all the way up.
Hope this helps.
thats the same problem that i got when i first got my nexus 7
what fix it was a different charger and cable

Charging problems

I just got my Note 3 working thanks to this group. When I first got it, it was without a battery and was locked by PIN. I was able to wipe it to factory conditions, but now it will not charge. It charged right away when I first got a replacement (OEM) battery, but then, I did the system factory reset, and now it will not charge. I am using a USB 3.0 cable and connecting this to my Apple charger I got with my iPhone 6 as I don't have a specific charger that might have come with the Note 3...just a generic USB 3.0 cable and the iPhone 6 charger that the USB cable plugs into. Any thoughts for me to try?
Try plugging the cable into a computer. It might not charge fast but it will let u know if it will charge or not. Iphone charger might not be compatible so battery will not charge.
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S2_brickmaker said:
Try plugging the cable into a computer. It might not charge fast but it will let u know if it will charge or not. Iphone charger might not be compatible so battery will not charge.
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I have tried using the computer and that is part of my confusion...the phone will indicate it is charging...but it doesn't. I get the same indication whether I am using the computer with USB 3.0 cable, or using various wall charger pods with the same cable. It will show the charging symbol (lightning bolt) or, if turned off, but plugged in, it will show the upflowing green drops rising toward the battery. So, it seems to indicate it is charging, but the charge percentage never increases...only drops.
AUsome360 said:
I have tried using the computer and that is part of my confusion...the phone will indicate it is charging...but it doesn't. I get the same indication whether I am using the computer with USB 3.0 cable, or using various wall charger pods with the same cable. It will show the charging symbol (lightning bolt) or, if turned off, but plugged in, it will show the upflowing green drops rising toward the battery. So, it seems to indicate it is charging, but the charge percentage never increases...only drops.
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Click to collapse
It's not unheard of for a brand new battery to be defective. If you know someone else with a Note 3...try swapping batteries with then and see if the problem moves with the battery.
There is nothing in a factory refresh that would effect the charging circuit.
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