yashsingh1/xdaforums huggingface dataset:
[Moto G Q&A, Help & Troubleshooting] MrWhatever:
Also had this problem on an 8 GB Tesco Moto G.

I was playing around with the USB cables yesterday after having problems with XP SP3 recognizing the device and suudenly the phone was displaying 0%. Left it on charge for 10 minutes and it was back to 100%! Really strange.

Also, don't seem to be getting much life out of the battery today. I let it discharge to 10% then re-charged it with a mains charger. Battery level droped 20% after an hour or so just playing Candy Crush for about 30 minutes.

---------- Post added at 03:49 PM ---------- Previous post was at 03:43 PM ----------

Hi, not sure if this helps, but I also had problems with XP SP3 recognising the Moto G. I'd already got the 'Motorola Device Manager' installed but no sign of it in 'My Computer'.

It turned out that it was because I was using the default Windows Media Player. As soon as I updated it to Media Player 11 and restarted XP, it now recognises the phone as an XT1032 and I could then transfer to and from the phone with no problems.

Presumably WMP installs some updated USB drivers or whatever?

Hope this helps.
[Moto G Q&A, Help & Troubleshooting] Lauriz7:
I had this issue with my Moto G 16GB from amazon.co.uk, but it happened only once. The phone suddenly turned off at 40% and it was completely discharged. I charged it with ipad 2.1A charger and it worked fine since then. But now i am having problem with mediaserver which eats battery more than the screen.
[Moto G Q&A, Help & Troubleshooting] miklosbard:
mediaserver eating battery is a known issue, just look around here in the Moto G section for suggested workarounds
[Moto G Q&A, Help & Troubleshooting] Lauriz7:
None of the suggestions work, and i do not dare to root and disable mediaserver completely.
[Moto G Q&A, Help & Troubleshooting] rashidul3:
I had the same issue with my nexus 7

if you are trying to transfer your files, make sure you have 'connected as media storage' ticked in storage in settings. If that doesn't work, its probably because you previously installed other drivers in your computer, which is being used to try to access your phone.

In order to solve this, go to device manager and find your device ( it may not be listed as our device name). Then go to properties and change the drivers you want to use. there will be a list to choose from, try the ones that say usb media or something related. :good:
[Moto G Q&A, Help & Troubleshooting] newuser25:
Few hours on and the phone is still going strong on 1%. Hopefully, when battery gets to real zero, after re-charge everything will get back to normal. Wonder, if that happens again.
[Moto G Q&A, Help & Troubleshooting] iltoffa:
someone of you have tried to make the calibration of the battery?

I would like to buy the 16GB version but this issue is stopping me at the moment..
[Moto G Q&A, Help & Troubleshooting] newuser25:
That's what I am going to do with Battery Calibration app from the market.
[Moto G Q&A, Help & Troubleshooting] uccellino:
I also experienced the problem tonight: went from 65% to 0 and turned itself off while I was eating dinner. I turned it back on and it says it has 1% left but is still going a couple of hours later. I'll see how long it lasts...

I did receive a ROM update two days ago, not KitKat - just a small one to 14.91.11.falcon_umts.Retail.en.DE.
[Moto G Q&A, Help & Troubleshooting] newuser25:
Battery went down to zero and moto g turned off last night. Recharged to 100% over night and the phone works as normal now. Hope its going to be fixed with kitkat.
[Moto G Q&A, Help & Troubleshooting] uccellino:
I just chatted to Motorola about this and they suggested running the battery completely flat and then charging again. If this doesn't fix it after a couple of cycles, they advise a factory reset.
[Moto G Q&A, Help & Troubleshooting] pranaykhatri:
My hp touchpad did this kind of thing once. i left it for charging, when i removed the charger it went directly from 80% to 0% and turned off.

Next when i charged it went from 20% to 100% in one second.

Not to mention a tablet with 6000mAh battery and around 2 years old, its different from moto g.

Hope my moto g doesnt come with this bug.
[Moto G Q&A, Help & Troubleshooting] newuser25:
That worked! :)

I just updated old Windows Media Player and suddenly my device has been recognized by the system.

Many thanks.
[Moto G Q&A, Help & Troubleshooting] MrWhatever:
Glad it helped! :) Thanks for the feedback.
[Moto G Q&A, Help & Troubleshooting] newuser25:
Plucked up the courage and tried to replicate the charge drop. Followed same scenario twice. No issues whatsoever.

Additionally, tested two different USB cables (original and Samsung) and two different machines (PC and Mac).

Everything worked as expected.

So, hopefully that was one off issue.
[Moto G Q&A, Help & Troubleshooting] crash01ita:
Yea I think too, is a bug. No need replace MotoG or other.

My battery is 100% ok, I have done almost 2 days after that silly bug
[Moto G Q&A, Help & Troubleshooting] Shirshasana:
I had the same problem only once. After that battery works fine, but have some other issues.
[Moto G Q&A, Help & Troubleshooting] lost101:
UK XT1032 running Stock US Global GSM 4.4.2 Rom. Handset was connected to PC via USB lead. Dropped from 100% to 50%, and shortly afterwards to 1%. It would appear KitKat does not solve this issue.
[Moto G Q&A, Help & Troubleshooting] nupi:
I think it is a calibration issue. Mine does that since I installed KitKat but happily survives 12hours between 50% and 45%... Battery voltage looks pretty odd, too.
[Moto G Q&A, Help & Troubleshooting] michalurban:
Problem

Is this a problem relating to some devices or a general problem? Ive got my Moto G (UK XT1032) for 13 days now and this problem has never occured - should I be worried this can happen any time? Moto G is not being sold in my country so warranty exchange would be ... difficult ...
[Moto G Q&A, Help & Troubleshooting] kpfx:
Possible computer USB charging bug

I had this issue with 4.3 and I'm pretty sure it only occurs when you're charging on a computer. There's something about the drivers or software corrupting the battery stats causing the phone to believe its dangerously low. Plugging it into a standard wall-charger lets it reset the stats and get to 100% in about 5-10 min.

Never had issues when using a dumb wall-charger, and haven't seen it (yet) with 4.4.

I'm curious to know if the other people here having that issue were also using a computer to charge.
[Moto G Q&A, Help & Troubleshooting] lost101:
I've only ever encountered this when connected to a computer.
[Moto G Q&A, Help & Troubleshooting] ngc2997:
No, definitely not. I came across this issue just a few days ago. With the phone lying on my desk (i.e., it was not charging or doing anything else, just standing by), it suddenly emitted some sort of low notification tone and then re-booted. After unlocking the SIM, I found the battery had 1% left (while I had it fully charged just a few hours before, using a wall charger).

Re-charged again, and after some five minutes or so it was fully charged again.

Best wishes,

Karsten
[Moto G Q&A, Help & Troubleshooting] michalurban:
So, as I see it from info in this thread:

- when a phone is charged using a USB cable from PC a battery calibration problem appears resulting in "badly" charged battery or badly informed charging electronics

- when a phone is charged using a wall charger this problem wont happen ... possibly because of higher current or whatever (lol) in the charger

- after this problem appears using a wall charger is probably going to solve it ...

Questions:

1) Are the information stated above correct?

2) Im using 5V/0,7A wall charger from my Nexus S - is this possibly the reason why Ive never encountered this battery problem for the 13 days Ive got my phone?

3) What about copying data over USB cable - is this going to trigger this problem? Should I put the phone on wall charger after using USB?
[Moto G Q&A, Help & Troubleshooting] ngc2997:
Well, as far as I'm concerned, no - as mentioned above, this happened to my phone while sleeping on my desk, no USB connection whatsoever, and I am always charging it using a wall charger.

Best wishes,

Karsten
[Moto G Q&A, Help & Troubleshooting] michalurban:
I read your message but I disregarded it because this problem of course happens always without wall charger or PC USB connected. I must have missed the information about the phone had been charged by a wall charger ... :o
[Moto G Q&A, Help & Troubleshooting] kalbelo:
I just got the same issue.

my mobile was not in use with about 80% of battery so it turned off by itself

I turned on and the battery monitor is showing 1% during the last 3 hours.

well, I never connected it to the Laptop/computer USBs but I used an old charger with 550mAh (my one from Moto G box has 850mA)

I will run the phone up to get out of the juice and then charge it again, if it does not work I will return the phone..
[Moto G Q&A, Help & Troubleshooting] KingUsman:
Happens to me now my phones stuck on 1%
[Moto G Q&A, Help & Troubleshooting] kalbelo:
KingUsman,

use the phone up to get out of the juice and then recharge it using the original power charger of 850 mA.

I did that yesterday and the battery monitor came working good.
[Moto G Q&A, Help & Troubleshooting] naramsim1:
hi!

i have the same problem!

i have install rooted 4.4 and when i flashed cerberus.zip in CWM at the reboot the battery dropped to 48% from 100%....
[Moto G Q&A, Help & Troubleshooting] lauren:
everytime i have rooted or flashed a boot.img etc on my motoG the battery drops from 100% to 48% - then when i plug it in to charge it is full again within 5 - 10mins

i think there is definitely something scewey going on with the battery stats readings more than the actual units having battery problems
[Moto G Q&A, Help & Troubleshooting] P650SE:
Mine's just started doing this too. I left the Moto charging in sleep mode while i played on the Xbox; after a couple of hours i went to unlock on the phone, and it was on the white screen with the battery symbol showing just 1% charge.

See screenshot attached.
[Moto G Q&A, Help & Troubleshooting] nupi:
And it will take longer to fix itself if you use a pc top charge. Wall chargers generally get it done with one full cycle
[Moto G Q&A, Help & Troubleshooting] irishpancake:
OMG, just happened to me too!!!!

I have had the Moto g since 6th December, less than 1 month.....

I never charged it any other way than by wall charger, either a 2A one from Belkin, or my Nexus 7 (2013) charger plug, 1.35A....

It was just sitting on my kitchen worktop when I heard an alarm, it had been showing something over 60% just prior to this, after 1 Day+, with very little use....

I took some screenshots, just after and during it's charge after, which was with the 2A charger, and which finished very quickly, but the "fully charged" screenshot looks odd to me:

Just after the 1% Alarm

100% Charged just over an hour later

A little bit odd, the 100% charged graph??

Is there a calibration problem with the battery, or what do peeps think???

Would a Battery Calibration App help, although I believe they are just for the optics??
[Moto G Q&A, Help & Troubleshooting] jim.1405:
Another one bites the dust

I've had a couple of flaky battery issues in 2 1/2 weeks I've owned the phone. Phone is bone stock with only few apps on it.

First, when I did the KitKat 4.4.2 update over the weekend. The battery was at 100% and plugged into a PC when I did the update. After the install the battery was at 47%. I chalked it up a calibration error and was just going to let it run down completely then do a full charge from a wall charger. The phone slowly drained down to 1% then continued to operate for several more hours at 1% until it finally died.

I charged it up to 100% Sunday night but in the mean time moved the SIM over to another phone. So the G was just sitting around from Sunday night in sleep mode with no SIM. Last night before I went to bed it was at 88%. About 4:15 I heard it make a sound (DU battery setup to give audible warning when battery goes below 35%) and when I checked it out a few seconds later the phone had shut itself off. It started right back up and the charge read 1%. I plugged it in to a wall charger and when I checked it about 45 minutes later it was back up at 100%. So it wasn't really drained since you can't charge from 1% to 100% in 45 minutes. It went all day today sleeping and is now down to 98%.

I like the phone but it needs to be dependable which it isn't so I'm returning it tomorrow for a refund. If Moto fixes this issue I'll pick one up later.
[Moto G Q&A, Help & Troubleshooting] robpty:
Not the only one

I have the XT1032 GSM Global model completely stock, no root and running KK. I did notice the huge battery drain when the update completed. I was at about at 75ish % and when the device rebooted to complete installing the update it dropped to 43% and I was like WTF but didn't pay attention to that.

Then after using KK for sometimes when I plugged in a USB cable to charge (don't remember if I was plugging it directly to a computer to transfer files or using a wall charger) and the battery had a decent charge and as soon as I connected the cable I got the low battery alarm, dropped to 1% and the phone turned off :eek: then when I turned the phone back on it booted fine and the battery was still at 1% but it lasted for a loooong time before it lost all the charge and the phone died.

So I really don't think it is a hardware problem because the battery will last a long time even though it says 1% and I think that when you connect the device to most likely a USB port in a compute to transfer files or do whatever with the computer it triggers that but at least it is not like the battery gets drained instantly.

I did contact Motorola support and sent them the link to this forum to let them know that a lot of users are having this problem.

The last thing I did yesterday was to completely drain the battery to the point that not even the LED would blink indicating a low battery charge. Then charged the battery with the phone off for about 4 hours and I've been using it normally with no issues but like I said before this issue might be triggered when the phone is connected to a USB port in a computer either PC or Mac or any other platform.

Ill try to make more tests during next week!

Saludos

Robert
[Moto G Q&A, Help & Troubleshooting] vicmota1:
Just happened to me.

I've got the phone today and had it fully charged.

I Connected it to PC and transferred some music without any issues.

Moments later I turned USB Debugging on and connected again the USB cable, but the phone wasn't recognized. When I disconnected the cable, the battery dropped from 98% to 1% and the phone died. It's on 1% since then, but I can use it normally with intensive tasks (gaming).

Hope there's a fix to this.

Best regards,

Victor Nascimento
[Moto G Q&A, Help & Troubleshooting] musheo0:
This just happened to me from 70 ish % i guess to phone shutting off when i plugged it in. Will add pic later phones charging from wall.

Purchased Moto G 8Gb on o2 from phones4u only a couple of weeks ago.
[Moto G Q&A, Help & Troubleshooting] robpty:
OK so the USB cable thing is making more sense now. See when it happened to me I was trying to fix something with my tethering and I tried using USB tethering and when I connected the phone several times to the PC it happened. Seems that when you try to do certain things when the phone is connected to the PC it causes that.
[Moto G Q&A, Help & Troubleshooting] lost101:
I've wondered if it only occurs if you have 'USB Debugging' enabled. That might explain why there are not mass reports of this and how it could have slipped passed Motorola's Quality Assurance checks.
[Moto G Q&A, Help & Troubleshooting] Dracorius:
I had this issue when i connected my Moto G to my computer for the first time. And i'm sure i did not have USB debugging enabled. But it does seem to have something to do with the usb connection.

Cheerz
[Moto G Q&A, Help & Troubleshooting] ngc2997:
No, not necessarily - see my post above. Narrowing this down to USB connections might be misleading; as stated above, I came across this issue with the phone lying on my desk. No USB connection, nor charging or anything else.

Best wishes,

Karsten
[Moto G Q&A, Help & Troubleshooting] robpty:
It's going to be hard to narrow it down. Very weird issue but the more people post stuff it will be easier to find and hopefully Morotola will release a patch for it. After I drained the battery and recharged with the phone off I haven't seen any problems.
[Moto G Q&A, Help & Troubleshooting] psergy:
Got same issue. Dropped from 90% to 0% 5 hours after overnight charging with iPad charger and Kindle long white USB cable.

Stock UK version, 16Gb. Debug is off. Never connected to PC. :)
[Moto G Q&A, Help & Troubleshooting] robpty:
After calibrating the battery it has lasted one whole day and still had about 20% juice left. Right now I am charging the phone by connecting it to the USB port of my computer. Forgot to mention that I don't have USB debugging enabled either
[Moto G Q&A, Help & Troubleshooting] wrj54:
I haven't bought the Moto G yet but this sounds like a concern. Does anyone know if Motorola have a trouble reporting process on their website? If so, maybe problem should be reported.
[Moto G Q&A, Help & Troubleshooting] robpty:
I did contacted them via chat support and also gave them the link to this forum. Haven't had the time to call them because I don't live in the US and it is kinda hard LOL but they are aware so if you or anyone from the US could give us a hand that would be appreciated.

I have to say that I charged the phone and so far so good and just did basic stuff like browsing files and adding and deleting stuff from the phone. I'll have to start checking if the issue gets triggered while trying to do something on the phone while the USB cable is connected but honestly I am not that concerned because is not like the phone dies and never turns on again it is just that the reading from the battery is not correct but the battery is fully functional and holds the charge.
[Moto G Q&A, Help & Troubleshooting] irishpancake:
I have also had this experience after my one battery drain event, reported in this thread.

So far, it has performed very well, and I have charged it fully again, using my 2A charger, from about 10%, which I got to after normal use age, and almost 2 days.

When you say calibrating, are you talking about normal charge/discharge cycles, or some App??

However, it is worrying that this battery sudden drain can happen, without warning or any unusual usage, from 60/70% to zero.

Particularly as this battery is fixed and not removable.... although I have no doubt it can be removed and eventually there will be replacements available to buy.

But, what if this happened during a boot loader unlock process, or a rooting process, or any process which requires a "good charged battery"??
[Moto G Q&A, Help & Troubleshooting] michalurban:
Seems to me this could be more related to the OS so chance of happening when in bootloader are minimal, right?

Well, as ROBPTY said before ("Moments later I turned USB Debugging on and connected again the USB cable, but the phone wasn't recognized. When I disconnected the cable, the battery dropped from 98% to 1% and the phone died"), I believe this problem can be influenced by DISABLED debugging rather than ENABLED ...
[Moto G Q&A, Help & Troubleshooting] irishpancake:
How can one know or trust that there will not be a catastrophic loss of battery power when in bootloader??

It may be related to OS battery calibration stats, but I don't think there is batterystats.bin any more, or is there.….

in the old days,there was a recovery option to wipe this file, and a new one would be created on reboot.

AFAIK battery stats are reset upon full charge, and wiping that file did nothing at all which the system did not do.

For info, on the USB debugging, I have had this option checked since day 1, always!!!

It's part of my routine, like rooting, unlocking BL, custom recovery, unknown source side-load, etc.

So, I discount stuff about USB power and the debugging option as reasons for the apparent Sudden Battery Loss I experienced.….

while my phone was simply sitting on my kitchen worktop, doing nothing, and with a +60℅ charge..….

which suddenly stopped to virtually 0%.

Never happened to me, ever before, with any Android I have had, about 7/8 devices now, this is a first!!!

I think Moto will have to provide a reason for this, or a fix, to reassure customers who bought from them in good faith.

I will provide them with my info,everyone else should do likewise, IMO.
[Moto G Q&A, Help & Troubleshooting] Schokobons:
-

Hello all!

same issue with my moto g yesterday after my first USB link with my office computer (to transfert some documents).

battery go from arround 70% to 1% + turn off - 2 or 3 hours after the link.

Do you think it is hardware or software (OS) issue ?

I hope a motorola patch quickly...

Ps : sorry for my english. :silly:
[Moto G Q&A, Help & Troubleshooting] wrj54:
Am I not understanding something? Isn't the Moto running pure Android 4.3 or 4.4? If so, wouldn't other Android devices exhibit this same problem if the cause was in the O.S.
[Moto G Q&A, Help & Troubleshooting] lost101:
Each device has a unique version of Android for it's specific hardware. Try installing the Moto X version on a Moto G and see what happens. The problem could be hardware, or how the software handles the hardware.

Has anyone in the US had this problem on the XT1034 model?
[Moto G Q&A, Help & Troubleshooting] robpty:
The Moto G runs an almost pure version of Android but still have some of their software in it but just the basic stuff.

As I said before well at least in my case I do think is a battery status bug in the OS because when it happened to me the first time I had about 70ish percent and dropped to 1% and when I turned the phone back on it still said 1% but the battery lasted for many hours and I mean a lot before it turned off. So what I am trying to say is that the battery still had charge but the phone is not displaying the percentage correctly.

Maybe draining the battery completely helped. So try it.

Drain the battery to the point were the phone will not turn on at all, not even the LED that blinks when the battery is dead, just make sure that you don't see any type of activity at all. Then charge the phone (preferably with a nice 1A (amp) wall charger) and let it charge for about 3 to 4.5 hours. Turn the phone back on after is charged and use it normally.

So far I haven't had any problems after the few test I've done.
[Moto G Q&A, Help & Troubleshooting] irishpancake:
Full discharge of a Li-ion Battery to that extent can actually harm the Battery, and I would not recommend it at all, normally!!!

http://www.howtogeek.com/169669/debunking-battery-life-myths-for-mobile-phones-tablets-and-laptops/

But, it does appear we are getting false battery status information from Android, especially as some are using the device for hours after the low power warning has been issued, so, as stated in the piece above, calibration by full discharge/full charge cycle should fix this.....

mine has shown no further problems after full charge again, although I did not do the "full discharge" recommended by robpty......if it happens again, that is what I will do.
[Moto G Q&A, Help & Troubleshooting] lost101:
There is a thread related to this on the official Motorola forum. Maybe more people posting there will get this investigated.

https://forums.motorola.com/posts/b08e287fc6
[Moto G Q&A, Help & Troubleshooting] anerik:
Today i was charging it and it seemed to charge very quickly (from 70 to 84 to 100) so i used the battery calibration app, not sure it even does anything, but after an hour or so it came back to 48 which i think is the right one (since it was at 70 when it started charging and i used it since that) but not sure. Could updating to kk cause this?
[Moto G Q&A, Help & Troubleshooting] lost101:
I don't believe so, since it happens in the retail 4.4.2 firmware also.