Battery Drain - Nexus 4 Q&A, Help & Troubleshooting

as you can see through my screenshots i face this problem.....
i have my device just a week with 5-6 full charges..
today i put some extra calendars in the google calendar in order to have the name days in my calendar..the file was .ics(i'm wondering if these files are responsible for this drain.. )
please help..

stefanos7 said:
as you can see through my screenshots i face this problem.....
i have my device just a week with 5-6 full charges..
today i put some extra calendars in the google calendar in order to have the name days in my calendar..the file was .ics(i'm wondering if these files are responsible for this drain.. )
please help..
Click to expand...
Click to collapse
This looks like a bug and that the battery was never fully charged. Your screen shot "shows" the battery drained 90% in less than 3 minutes. I'm pretty sure a lithium cell actually subjected to that would have caught fire and exploded. There's no bounce back in voltage either, as would be expected after such a large drain. There's something wrong with how your phone is reading the voltage of the battery.

ATnTdude said:
This looks like a bug and that the battery was never fully charged. It looks like it drained 90% in less than 3 minutes. I'm pretty sure the battery would have caught fire and exploded if that actually happened. There's no bounce back in voltage either, as would be expected after such a large drain.
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Click to collapse
so you may think there is a problem with the charger?

stefanos7 said:
so you may think there is a problem with the charger?
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Click to collapse
I'm not sure there's a problem at all. Does it do this every time you unplug your phone? Does your phone actually power off due to low power when the battery hits 0%?

ATnTdude said:
I'm not sure there's a problem at all. Does it do this every time you unplug your phone? Does your phone actually power off due to low power when the battery hits 0%?
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Click to collapse
it's the first time that does that..
i have never leave to hit 0% so i don't know but in the morning the battery hit 4% and the was a notification to charge the phone due to very low battery (something like that)

stefanos7 said:
it's the first time that does that..
i have never leave to hit 0% so i don't know but in the morning the battery hit 4% and the was a notification to charge the phone due to very low battery (something like that)
Click to expand...
Click to collapse
I wouldn't worry unless it does this again. The Nexus 4, on rare occasion, has some weird software bugs when it comes to charging. Nothing permanent or really inconvenient in my experience. Just 1-time errors.

ok i will keep your advice and i hope to never does it again...
thanks for your advices!!!

Related

[Q] Suddenly Poor Battery

My dad's Droid 2's battery life just took a nose dive about a week ago. He is running the rooted stock 2.2 rom, few widgets on the home screen, no task killing, and he hasn't gotten any apps in the last month (I don't think he knows how). Did his battery just die (unusable, not no capactity) or is there anything I can try?
What I would do, is tell him to get the battery to where the phone wont turn on anymore, its COMPLETELY DEAD. Plug it into the wall until its 100 percent, then drain it down to about 10 percent, then plug it into the wall again. After another complete charge, it should be good again. Its called reconditioning the battery. I do it about once a month.
boogerburns said:
What I would do, is tell him to get the battery to where the phone wont turn on anymore, its COMPLETELY DEAD. Plug it into the wall until its 100 percent, then drain it down to about 10 percent, then plug it into the wall again. After another complete charge, it should be good again. Its called reconditioning the battery. I do it about once a month.
Click to expand...
Click to collapse
I've heard a lot that Lithium-Ion batteries shouldn't be conditioned too often, because they only have so many charge cycles. I'm not expert though. (Don't let this keep you from trying what boogerburns suggested. I could work for you. I'm just stating that Lith-Ion batteries don't like to be drained a lot)
Anyways, the battery could have gotten a bad cell. You can check the battery condition by opening the dialer, and hitting *#*#4636#*#*
This will bring up a menu, and you can choose battery info (or something along those lines) If battery condition is anything but "good" then he'll probably need a bad battery.
boogerburns said:
What I would do, is tell him to get the battery to where the phone wont turn on anymore, its COMPLETELY DEAD. Plug it into the wall until its 100 percent, then drain it down to about 10 percent, then plug it into the wall again. After another complete charge, it should be good again. Its called reconditioning the battery. I do it about once a month.
Click to expand...
Click to collapse
Well, now it's at a point where the battery is dead in only a few hours, so he's "conditioning" his battery once every few hours.
orkillakilla said:
I've heard a lot that Lithium-Ion batteries shouldn't be conditioned too often, because they only have so many charge cycles. I'm not expert though. (Don't let this keep you from trying what boogerburns suggested. I could work for you. I'm just stating that Lith-Ion batteries don't like to be drained a lot)
Anyways, the battery could have gotten a bad cell. You can check the battery condition by opening the dialer, and hitting *#*#4636#*#*
This will bring up a menu, and you can choose battery info (or something along those lines) If battery condition is anything but "good" then he'll probably need a bad battery.
Click to expand...
Click to collapse
I did check on the battery condition somewhere, and it was "good". However, I was wondering if there's a way to check uptime/awake time on the D2. My Inc had bad battery once, and I knew it was a lemon since the uptime was far more than awake time. I'm afraid that a rogue update is sucking my dad's battery.
How can I check my uptime and awake time?
pianoplayer said:
Well, now it's at a point where the battery is dead in only a few hours, so he's "conditioning" his battery once every few hours.
I did check on the battery condition somewhere, and it was "good". However, I was wondering if there's a way to check uptime/awake time on the D2. My Inc had bad battery once, and I knew it was a lemon since the uptime was far more than awake time. I'm afraid that a rogue update is sucking my dad's battery.
How can I check my uptime and awake time?
Click to expand...
Click to collapse
Use the code I posted earlier, and this time select battery history. Select "partial wake" and see if anything is keeping your phone awake. Also look at network usage and see if anything is using that too much.
Alternately, you can download an app called Spareparts from the market (free) and you can get this information more quickly.

Battery charged itself !!

I checked my battery monitor widget today am noticed something very strange. It showed me 40% charged when I was sure it was only 35% charged before I went bed! WTF did it charge itself? As you can see from the screenshots the phone was not on charge and was awake for most of the night which has never happened before. I have not installed any new apps in the last few days I have never seen this before on any of my android phones over the years. After 1 month of using the note this is the first glitch i've noticed (if it is a glitch). I am on stock LA4.
Anyone have any ideas as to why this happened?
I'm not complaining ( wish it happened every night!) just curious.
I have noticed the same strange thing with ICS.
did you try pinching your arm?
/Jeriz
It is probably/maybe your battery stats that was not exactly "right" and might "recalibrate" your battery stats to the true value.
The simplest answer is always the true one: It is having trouble reading your battery right. Happens with mine too sometimes.
LOL I had the same thing happened to me.
First day with my note. And so far I am loving it.(despite colour rendering issues , and a very lagging stock keyboard)
Sent from my GT-N7000 using xda premium
Maybe the phones are evolving and learning to use the sensor on the Front to charge itself lol
Sent from my Galaxy Note
This has happened to me several times already since the Galaxy S days.. sometimes after a reboot the battery looses 50% and slowly charges back up its quite funny and strange, never happened to my note though.
What do you think happens if some of the services is not needed anymore and stopes relaying,the battery % estimation will go up.
georgios73 said:
I checked my battery monitor widget today am noticed something very strange. It showed me 40% charged when I was sure it was only 35% charged before I went bed! WTF did it charge itself? As you can see from the screenshots the phone was not on charge and was awake for most of the night which has never happened before. I have not installed any new apps in the last few days I have never seen this before on any of my android phones over the years. After 1 month of using the note this is the first glitch i've noticed (if it is a glitch). I am on stock LA4.
Anyone have any ideas as to why this happened?
I'm not complaining ( wish it happened every night!) just curious.
Click to expand...
Click to collapse
Mine charged itself too.
Went from 30% to 50% when I was out.
I thought it has some solar panel hidden beneath.
hagba said:
What do you think happens if some of the services is not needed anymore and stopes relaying,the battery % estimation will go up.
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Click to collapse
Wtf are you talking about? That's not any kind of estimate of lifetime, that's a report on amount of energy left. And in this case, specifically, a bug in it's reading.
Livewings said:
Mine charged itself too.
Went from 30% to 50% when I was out.
I thought it has some solar panel hidden beneath.
Click to expand...
Click to collapse
That one a good idea. Smartphone company should consider to put it in every phone in future..lol
Sent from my GT-N7000 using XDA App
When I saw this thread, I immediately opened my battery stats only to see this:
lulz
Viamonte said:
Wtf are you talking about? That's not any kind of estimate of lifetime, that's a report on amount of energy left. And in this case, specifically, a bug in it's reading.
Click to expand...
Click to collapse
You need to review your facts make a bit more research, the report is based on the fact that how many apps and services are you using,say if the wifi is on, it will show you certain %, however if you turn it off will report you that it has increased, depending on the running apps and services how much battery is left, my laptop does it all the time,unless you are living in pre Smart Battery Meter era.
I have to agree that if the % relies on the voltage (as I am sure it must do to some extent, but I am only guessing), stopping heavy services will allow the voltage to increase and the app may see that as a gain.
Alternatively we have discovered Samsung's secret OTA charging method! This explains why some phones have terrible battery life, they are being sucked dry by nearby 'Vampire Notes'!
Now, if we could just work out how we could charge all Notes by sucking iPhones dry ....
turshija said:
When I saw this thread, I immediately opened my battery stats only to see this:
lulz
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Click to collapse
Mega wtf. :O
Sent from my GT-N7000 using xda premium
Battery is trolling
The Galaxy Note battery is a three terminals battery. So I think that the % state of charge of this battery is directly calculated from its output voltage.
The voltage decrease as the charge decrease, so it is possible to evaluate the residual charge in the battery.This is not a very precise method but it is quite simple to implement.
After a high current drain there is what is called a ''voltage recovery'', the battery voltage increase slowly a little bit as the current is stopped. So you may think that the battery get back energy, but unfortunately it is only an artifact.
Yesterday I showed you all how my battery indicated that it had charged itself.
So guess what folks today when I checked the complete opposite happened!!
Again as you can see it went from 48% just before I went to sleep only to wake up to a dead phone (switched off). Upon rebooting it showed only 9% !!
Now I can cope with it going up but going down is not good.
Hope its not a hardware problem and just a faulty battery.
lets see what happens tomorrow maybe it will explode!
I'm an EE (election engineering) student. Michel_7 is right. Lithium ion batteries experience a voltage sag during high current draws. Afterwards there is some rebound, both as the battery cools if over temp, and with a period of lower activity. This is in part due to the fact that batteries have internal resistance, and as they supply power, they also dissipate some internally. This is of squared proportion to the current drawn. IE current^2 * resistance. Battery resistance constant, so the more power the phone uses, the more the battery does. This is what heats up the battery.
Sent from my GT-N7000 using xda premium

[Q] Strange and inconsistent battery drain

I wouldn't exactly call this an issue because it doesn't really affect how I use my phone - it's merely something odd that has me curious if anyone else has it:
If I charge my phone all night, and plug it out at 100%, then no matter what I do it'll stick to 100% for a long, LONG while before it hits 99% - we're talking..25 mins of sat nav, and spotify, and full screen brightness on the go. But then, it falls down into a more regular pace of discharging.
If however I unplug it 5-10 mins after it hits 100%, it starts discharging normally.
I think I can get a batter life of full browsing of 6 hours, probably. Maybe a bit more (never tried it, never needed to).
I am just curious why this happens with my LG. Do you think it's a fault or is it fairly common?
Thanks
P.S. - testing it again now - 15 mins in youtube watching a video, still at 100%. very strange
you seem to have found some interesting sweetspots of charging and battery depletions.
My instinct tells me the discharging and the 100% mark is influenced by code in some way other then the battery being truly at 100%. There is software like android tuner or battery widget that monitors stuff.
however a great dev already wrote something about tinkering on lg's side in reporting the battery. Which means the percentage is. indicative but completely reliable. To gain more indepth into the actual battery usage other apps are needed. If have battery ocd that is.
I would report this to lg, just to be sure nothing else is happening
bachera said:
you seem to have found some interesting sweetspots of charging and battery depletions.
My instinct tells me the discharging and the 100% mark is influenced by code in some way other then the battery being truly at 100%. There is software like android tuner or battery widget that monitors stuff.
however a great dev already wrote something about tinkering on lg's side in reporting the battery. Which means the percentage is. indicative but completely reliable. To gain more indepth into the actual battery usage other apps are needed. If have battery ocd that is.
I would report this to lg, just to be sure nothing else is happening
Click to expand...
Click to collapse
what is more interesting is that this happens to me both on official LG, and on ROM (cloudyfix).
Continuing with my tests, I have been running youtube on repeat since unplugging and monitoring. I am now at 50%, with...close to 5 hours of usage?
then its playing from buffer and not continiously downloading and streaming right?
bachera said:
then its playing from buffer and not continiously downloading and streaming right?
Click to expand...
Click to collapse
It downloaded all times. I plugged the phone in to charge at 10÷.at that time I had 7:30 hours YouTube screen time on auto at 90÷ . I suppose this is a good performance?
its great performance
bachera said:
its great performance
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Click to collapse
yeah i thought so.
So I'll leave with that little flaw I think, I'll just learn not to mind it and be sure to always charge overnight to get the best next day. Thanks for the help
I usually charge my phone and reboot it right after it hits 100%. I don't disconnect the charger until the phone restarts completely.
Doing that I get outstanding battery life

I love Android :3

Battery drain with or without wake lock, doesn't matter. :good:
It has nothing to do with Android, on average i'm getting 3days with 6-7 hours screen on time on every charge.
So either you have app that drains battery or your battery is malfunctioning. (or both)
k3lcior said:
It has nothing to do with Android, on average i'm getting 3days with 6-7 hours screen on time on every charge.
So either you have app that drains battery or your battery is malfunctioning. (or both)
Click to expand...
Click to collapse
Well, I don't think it's an app that is draining battery as, there are no wake locks and I don't use apps that run in background except Google apps. I don't think it's a hardware error either because this doesn't always happen. It started to happen a few days after I got the Nexus 7 half a year ago, then stopped and started randomly. It hasn't happened for at least 2 or 3 month until one week ago.
I also own an Android phone(a Samsung Galaxy S2, I know it's old) and wake locks happen so frequently, sometimes I wake up (after only 6-8 hours) to my phone having discharged completely. Betterbatterystats shows wake locks on my phone most of the time but they are so generic and not attributed to an app(i.e show up in the partial wake locks tab) that I can't troubleshoot. And why do I always have to troubleshoot? Why would I have to turn off all services to ensure I get through the day with 1 charge. I don't even use my phone a lot.
thelossa said:
Well, I don't think it's an app that is draining battery as, there are no wake locks and I don't use apps that run in background except Google apps. I don't think it's a hardware error either because this doesn't always happen. It started to happen a few days after I got the Nexus 7 half a year ago, then stopped and started randomly. It hasn't happened for at least 2 or 3 month until one week ago.
I also own an Android phone(a Samsung Galaxy S2, I know it's old) and wake locks happen so frequently, sometimes I wake up (after only 6-8 hours) to my phone having discharged completely. Betterbatterystats shows wake locks on my phone most of the time but they are so generic and not attributed to an app(i.e show up in the partial wake locks tab) that I can't troubleshoot. And why do I always have to troubleshoot? Why would I have to turn off all services to ensure I get through the day with 1 charge. I don't even use my phone a lot.
Click to expand...
Click to collapse
Let us see the BBS logs for your phone.
About the tablet, flo has never had good idle drain, but this is likely a problem with your wifi. Before you go to bed, turn off wifi and reboot. See if you can still reproduce the 3.0%/hr drain.
If that doesn't make a difference, recommend trying stock ROM and especially kernel.
Aerowinder said:
If that doesn't make a difference, recommend trying stock ROM and especially kernel.
Click to expand...
Click to collapse
Is he using a NON standard rom and the guy is *****ing about battery problems LOL
One word of advice, regardless. Do not let your battery drain completely. Ever.
Lost my Nexus 7 like that, the battery life is great so I was lazy to enough to charge it before going to sleep (it was on a very low level then). Got a thin brick in the morning
Charge it before hitting 20% battery to be safe. That is what I do. It expands battery life longer for me
ruzell said:
Charge it before hitting 20% battery to be safe. That is what I do. It expands battery life longer for me
Click to expand...
Click to collapse
Is this a confirmed phenomenon? I hear a lot of people say it's a fairytale and some people swear it works. Any official links confirming it or anything like that?
bentleyboy said:
Is this a confirmed phenomenon? I hear a lot of people say it's a fairytale and some people swear it works. Any official links confirming it or anything like that?
Click to expand...
Click to collapse
It does work besides there is no damage if you let it die just a few times but if you let the battery discharged till it dies frequently then you are damaging the battery. This is more common on Li-on battery as they drain more quickly overtime due to frequent loss of power.
ruzell said:
It does work besides there is no damage if you let it die just a few times but if you let the battery discharged till it dies frequently then you are damaging the battery. This is more common on Li-on battery as they drain more quickly overtime due to frequent loss of power.
Click to expand...
Click to collapse
Hmm. Good to know, thanks. I rarely let stuff die completely, but now I'll actively avoid it.

Battery gauge problem

Guys last 1-2 week i started having battery problems. My phone dies when 10% battery left and when it has full battery it shows 89-95 etc i tried everything but nothing fixed the problem. Tried *#0228# code and didnt help and its not rooted so i cant use calibration apps. Only pulling the battery out solves it but after 1 usage it happens again. And its weird my 2 other note 4 user friend also started having this problem in same time any1 else has this problem or any1 knows how to fix it properly?
Sounds like a dead battery to me.
If the phone shutdown at 10%, it's probably because the voltage delivered by the battery is too low.
But the fact that your friends have the same problem is pretty strange. An app maybe ?
alex9898 said:
Sounds like a dead battery to me.
If the phone shutdown at 10%, it's probably because the voltage delivered by the battery is too low.
But the fact that your friends have the same problem is pretty strange. An app maybe ?
Click to expand...
Click to collapse
Dont think its an app and dead battery. Btw it doesnt only die at 10% sometimes 5% sometimes 7% its random. I think its just wrong calibration but it happens usually. Maybe fast charge effects battery dunno but its very annoying.
Defect charger that you both share? That ofc killed your batteries
Braxos said:
Defect charger that you both share? That ofc killed your batteries
Click to expand...
Click to collapse
Every1 uses their own charger. And im pretty sure my battery isnt dead i can still get 6 hours sot easyly.
im having the same problem.. it dies on me at 10%... last time on 20% cause i was like skypeing on 3g network for the last hour or so.. i got the phone SH so.. maybe replacing the battery will fix this?

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