Database Users

N7 JB 4.2 strange charging issue

My stock unrooted 16gb n7 received the 4.2 update this morning, all has been fine until this evening when it needed charge.
It often gets plugged into a htc phone charger, which has worked fine since i bought the tab a few months ago until today, its a 1amp charger so it takes ages to charge, but thats fine as it is plugged in until the morning normally.
So i plugin as normal, and come back after setting up google play music on my desktop pc, and i see the unit rebooting showing the glowing X. The screen goes blank and is unresponsive, eventually the google logo appears and it boots normally (its still plugged in btw), after unlocking the screen goes mental after maybe 5 seconds with random noise on it, then goes black.
So i unplug and use the genuine asus charger and cable, it does the same twice over, reboot, freeze, long wait then reboot.
I have now left it on charge using the asus charger and it seems to be ok now
Have google changed some charging requirements? Anyone else seen this?
Sent from my Nexus 7 using xda premium

Not sure, but my nexus 7 on Android 4.2 charges like 35% slower than did with 4.1.2..... what the hell did they do??

Funny you mention that, i might agree with you there
The N7 seems fine today, i did make a couple of videos of it misbehaving last night, watching back my circle battery widget app jumps from 16% to 0% battery just before it goes blank, indicating it might have simply run flat but thought it still had 16% battery?
Wonder if they have changed the battery meter scaling?
I think i will run it flat and check it shuts down properly like it used to
Sent from my Nexus 7 using xda premium

dexterslab said:
Funny you mention that, i might agree with you there
The N7 seems fine today, i did make a couple of videos of it misbehaving last night, watching back my circle battery widget app jumps from 16% to 0% battery just before it goes blank, indicating it might have simply run flat but thought it still had 16% battery?
Wonder if they have changed the battery meter scaling?
I think i will run it flat and check it shuts down properly like it used to
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Hi dexterslab,
On a side note when you update to 4.2 were you already rooted and did you have superSU version0.98 installed? I have been reading other posts in this forum that folks have been rooted, superSU installed and the update has completely crashed their N7. ANy info would be greatly appreciated.
Thanks,
JBIRD

Its still as stock, locked and unrooted
Sent from my Nexus 7 using xda premium

I've noticed slower charging since the 4.2 update too - did a quick Google search and landed here. Using the same genuine Asus charger and generic cable that I did before the update, and I would agree with the roughly 35% slower estimate.

dexterslab said:
Its still as stock, locked and unrooted
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Thanks, did you do a factory reset prior to updating?

No, update received ota so just installed it
Sent from my Nexus 7 using xda premium

Been working and charging fine since, guess it was just a random glitch!?
Sent from my Nexus 7 using xda premium

scubastevegk said:
I've noticed slower charging since the 4.2 update too - did a quick Google search and landed here. Using the same genuine Asus charger and generic cable that I did before the update, and I would agree with the roughly 35% slower estimate.
Click to expand...
Click to collapse
Are you using the new Daydream feature (you can find it in the display settings). If yes this may be the cause of slower charging, because it doesn't turn of the display.

Daydream is off.
Tbh, now it seems to have settled down i think maybe charging time is pretty much the same as it was. The whole debacle seems to be a complete non-event in hindsight!
Sent from my Nexus 7 using xda premium

Guhrasoh said:
Are you using the new Daydream feature (you can find it in the display settings). If yes this may be the cause of slower charging, because it doesn't turn of the display.
Click to expand...
Click to collapse
No Daydream for me.

Mine is stock and unrooted. After the update I'm having the same charging issues. Incredibly slower charging. It's been plugged in for 6 hours now and it's at 80%. I did play a bit of pandora for about 30minutes but it was still plugged in. Other than that I haven't touched it other than to check the level. I turned daydream. Let's see if that help though I doubt it.

i think when you install the 4.2 update it does a battery stat wipe. this could produce the battery jumping from 16%-0% i reset the battery stats on my gt-i9003 the other day charged, its went from 100% - 40% instantly after about 2 charge cycles it should go back to normal.
it would also explain the battery seeming to take longer to charge, its just the voltage counter resetting itself. it might even in some cases charge faster....then run out quicker....
charge- discharge about 3 times and it should go back to norm.:good:
example :
dexterslab said:
Tbh, now it seems to have settled down i think maybe charging time is pretty much the same as it was. The whole debacle seems to be a complete non-event in hindsight!
Click to expand...
Click to collapse
still bro i wouldnt use any charger expect the asus one, phones maybe i mean i always use other peoples chargers,or pickup the wrong end from my snake-pit of charger cables hanging under my tv unit. but for tabs....nah lol

chismay said:
i think when you install the 4.2 update it does a battery stat wipe. this could produce the battery jumping from 16%-0% i reset the battery stats on my gt-i9003 the other day charged, its went from 100% - 40% instantly after about 2 charge cycles it should go back to normal.
it would also explain the battery seeming to take longer to charge, its just the voltage counter resetting itself. it might even in some cases charge faster....then run out quicker....
charge- discharge about 3 times and it should go back to norm.:good:
example :
still bro i wouldnt use any charger expect the asus one, phones maybe i mean i always use other peoples chargers,or pickup the wrong end from my snake-pit of charger cables hanging under my tv unit. but for tabs....nah lol
Click to expand...
Click to collapse
Agreed, phones seem to be more universally compatible when it comes to charges.
Charge a tab with the wrong charger n you'll make up with a melted Nexus 7

i think its a part of certain regulations now that mobile phones needs to have an internal capacitor/transformer to make sure of this problem, as people usually run out of charge on the go and use other chargers as long as the connector fits and it begins charging, most of us including me are probably guilty of plugging a charger in, seeing its charging and thinking *yay it works fine* walking away and not really understanding what slow-fast damage can be caused to the device/battery.
for tabs 30% i would say dont have this feature:good: especially the Chinese ones. ? <no racial offence intended> you guys know what im on about.

My Nexus 7 worked great before upgrading to 4.2. Now it can't charge while I'm using it... The battery just goes up and down as I'm surfing the web, if I load a lot of pages, it goes down, if I read a lot, it goes up... But if I try to watch a floating video while surfing the web, it just goes down... There is definitely a problem! Here is a screenshot... I'm using the original charger and cable...

chismay said:
i think when you install the 4.2 update it does a battery stat wipe. this could produce the battery jumping from 16%-0% i reset the battery stats on my gt-i9003 the other day charged, its went from 100% - 40% instantly after about 2 charge cycles it should go back to normal.
it would also explain the battery seeming to take longer to charge, its just the voltage counter resetting itself. it might even in some cases charge faster....then run out quicker....
charge- discharge about 3 times and it should go back to norm.:good:
example :
still bro i wouldnt use any charger expect the asus one, phones maybe i mean i always use other peoples chargers,or pickup the wrong end from my snake-pit of charger cables hanging under my tv unit. but for tabs....nah lol
Click to expand...
Click to collapse
Wiping battery stats does absolutely nothing that affects reported battery charge level. That wives' tale was long ago debunked by a member of Google's Android team. The one and only thing you are wiping is a list of apps that have operated on battery since unplugging after the last complete charge. This in no way, shape, or form affects reported charge or has any effect on battery life whatsoever.
Sent from my Galaxy Nexus using Tapatalk 2

najaboy said:
Wiping battery stats does absolutely nothing that affects reported battery charge level. That wives' tale was long ago debunked by a member of Google's Android team. The one and only thing you are wiping is a list of apps that have operated on battery since unplugging after the last complete charge. This in no way, shape, or form affects reported charge or has any effect on battery life whatsoever.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
LIKE I AM SAYING MY FRIEND,
actually the battery stats ARE WHAT THE GOOGLE DEV SAID is what gives you accurate readings it doesn't increase your battery life . i never said that it will, so please don't police me,.
heres the comment
This file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
when you flash a new firmware, the system must calibrate as there are no previous readings from the bstat file right?.,these are the readings that help the system produce the reported battery charge. its what it does to give you those readings, i was guiding the above member to wait and run a few cycles for readings to be more accurate i never said his battery was dead.
kinda why pretty much EVERYONE mentions after flashing a new firmware on most device they have a few days of battery "up-n-downs"= counter reset/data collection/last battstat file wiped.
cheers:good:

chismay said:
LIKE I AM SAYING MY FRIEND,
actually the battery stats ARE WHAT THE GOOGLE DEV SAID is what gives you accurate readings it doesn't increase your battery life . i never said that it will, so please don't police me,.
heres the comment
This file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
when you flash a new firmware, the system must calibrate as there are no previous readings from the bstat file right?.,these are the readings that help the system produce the reported battery charge. its what it does to give you those readings, i was guiding the above member to wait and run a few cycles for readings to be more accurate i never said his battery was dead.
kinda why pretty much EVERYONE mentions after flashing a new firmware on most device they have a few days of battery "up-n-downs"= counter reset/data collection/last battstat file wiped.
cheers:good:
Click to expand...
Click to collapse
Read her entire dissertation, and you will see that it does not pertain to reported charge level. She explicitly states that batterystats.bin has no bearing on reported charge level. Interesting that you left out the portions of her post immediately prior to, and immediately following, the part of her post that you quoted... you know, the ones where she states, and then restates, that nothing in batterystats.bin affects the reported charge level? Also, the reason the battery seems more stable a few days after flashing new firmware is the kernel itself settling, not the OS.
Sent from my Nexus 7 using Tapatalk 2

Nexus 4 Shuts Down Randomly and Battery Problem

Help people, I have the nexus 4 for over 3 weeks and great but a few days ago when it was nearly full battery (around 80% or so) suddenly shutted down and I couldn't turn it back on until after 1 min or so plugging in. I did not care about it the first time ... But today, after having it charging about 2 or 3 hours I disconnected the cable to use the phone and the battery dropped from 90%+ to 8%, so I connected the cable and put it back to 100%, used it for 1 hour and it suddenly dropped back to 2% from 80% and then shutted down instantly.
Here are some screens.
Help please, and yes I have used the search function, but didn't find the solution on other posts.

tacwold said:
Help people, I have the nexus 4 for over 3 weeks and great but a few days ago when it was nearly full battery (around 80% or so) suddenly shutted down and I couldn't turn it back on until after 1 min or so plugging in. I did not care about it the first time ... But today, after having it charging about 2 or 3 hours I disconnected the cable to use the phone and the battery dropped from 90%+ to 8%, so I connected the cable and put it back to 100%, used it for 1 hour and it suddenly dropped back to 2% from 80% and then shutted down instantly.
Here are some screens.
Help please, and yes I have used the search function, but didn't find the solution on other posts.
Click to expand...
Click to collapse
What apps have you installed lately, maybe there is a rogue one. Install BetterBatteryStats for app behaviour and Cpu Spy for deep sleep issues.
Are you rooted? Custom rom or kernel? Undervolted or overclocked?

gee2012 said:
What apps have you installed lately, maybe there is a rogue one. Install BetterBatteryStats for app behaviour and Cpu Spy for deep sleep issues.
Are you rooted? Custom rom or kernel? Undervolted or overclocked?
Click to expand...
Click to collapse
I'm not rooted, all at stock. I didn't touch the voltages, I didn't do anything. I installed some games (vector, pudding thd, order and chaos) evernote, mega manager, pulwifi.
I'll install betterbatterystats and cpuspy, thank you.
Edit: look what happened to the battery now...
Also I attached a pic of the cpuspy, I can't install betterbatterystats because it costs 2 dollars

tacwold said:
I'm not rooted, all at stock. I didn't touch the voltages, I didn't do anything. I installed some games (vector, pudding thd, order and chaos) evernote, mega manager, pulwifi.
I'll install betterbatterystats and cpuspy, thank you.
Edit: look what happened to the battery now...
Also I attached a pic of the cpuspy, I can't install betterbatterystats because it costs 2 dollars
Click to expand...
Click to collapse
I think there is a free version of BBS on XDA , here http://forum.xda-developers.com/attachment.php?attachmentid=1240843&d=1344068311. Consider buying it on Play in the future if it benefits you.
Battery levels can be inconsistent at times, especialy after deep sleep.

gee2012 said:
I think there is a free version of BBS on XDA , here http://forum.xda-developers.com/attachment.php?attachmentid=1240843&d=1344068311. Consider buying it on Play in the future if it benefits you.
Battery levels can be inconsistent at times, especialy after deep sleep.
Click to expand...
Click to collapse
Here it is, and thanks for the replies.

Look in Partial Wakelocks for the biggest consumers.

gee2012 said:
Look in Partial Wakelocks.
Click to expand...
Click to collapse
I looked but I don't know what does that mean, sorry I'm a little noob. Is there anything wrong with it? I though that was just the sound cause I had it at max while I played after that happened.
Edit: I ordered it by count and the RILJ thing is the one at the top. (its not the attached pic)

tacwold said:
I looked but I don't know what does that mean, sorry I'm a little noob. Is there anything wrong with it? I though that was just the sound cause I had it at max while I played after that happened.
Click to expand...
Click to collapse
I see nothing abnormal on usage, just use the phone and see if this behaviour continues. If it does better do a factory reset or reflash the latest factory image.

gee2012 said:
I see nothing abnormal on usage, just use the phone and see if this behaviour continues. If it does better do a factory reset or reflash the latest factory image.
Click to expand...
Click to collapse
Okay I'll uninstall the latest apps I installed and will use the phone normally, if this happens again I'll do a factory reset and if the problem continues I'll call google. Thank you :good:

I wish I could be more help but I had the exact same issue. I could not figure out what was wrong with it but I had previously broken the screen and sent my N4 back to LG for repair. Since it was still under limited warrenty from that repair I sent it back to them again. They said they replaced the charger connector. I got it back and it seems to work fine now.
My issue started after I updated to 4.2.2 I believe. I don't know the root of it but my advice would be to do what you said and call Google or LG.

stones1313 said:
I wish I could be more help but I had the exact same issue. I could not figure out what was wrong with it but I had previously broken the screen and sent my N4 back to LG for repair. Since it was still under limited warrenty from that repair I sent it back to them again. They said they replaced the charger connector. I got it back and it seems to work fine now.
My issue started after I updated to 4.2.2 I believe. I don't know the root of it but my advice would be to do what you said and call Google or LG.
Click to expand...
Click to collapse
Thank you anyway

Similar issue here - I've been using the same apps since I first installed them after N4 purchase (meaning no new apps/games installed in the last few days and no settings changed). Took a nap for a couple of hours and woke up to see N4 completely dead - 0% batt. Charging it now and looking at partial wakelocks etc, havn't seen anything out of the ordinary. Hopefully it doesn't occur again but in the meantime still looking for a reason why this would suddenly happen.

Are you guys using the stock chargers? And charging through mains?

Rizy7 said:
Are you guys using the stock chargers? And charging through mains?
Click to expand...
Click to collapse
Yeah, am on stock JB 4.2.2, unlocked and rooted though, no other change like new roms flashed or anything. I use the stock charger and charge through mains.

I think there have been a few threads with this issue and nexus4s even prior to 4.2.2 and supposedly it was hardware. I called support while talking it through she had heard a few similar cases and it seems to be a hardware/software design issue. My wonder is how can I enforce 'never deep sleep' because my kernel doesn't seem obey.
I woke up this morning with the indicator light on but phone dead requiring reset (charged though - if not overly so). Just now it died again while sitting on my desk at 80% charge and deep sleeping again.
---------- Post added at 06:24 PM ---------- Previous post was at 06:13 PM ----------
Guiding.God said:
Yeah, am on stock JB 4.2.2, unlocked and rooted though, no other change like new roms flashed or anything. I use the stock charger and charge through mains.
Click to expand...
Click to collapse
I've read in a few places today the stock charger has been causing a lot of the charging issues and plan to switch to my old g2's charger tonight

Just RMA'd my nexus for powering off for no reason - would do it a few times a week (and extremely buzzing earpiece - which I was living with), never had a problem putting it back on though or had issues by battery levels being eratic) did quite a bit of testing over the space of a few weeks and found it continued to do it after wiping/fomatting everything and on Stock 4.2.2 non rooted and locked BL. As far as I am concerned if its still doing it with the stock out of the box set up its a hardware fault.

Mine has powered off unexpectedly twice in 30 days. Should I get it rmad?
Sent from my Nexus 4 using xda premium

gamepr said:
Mine has powered off unexpectedly twice in 30 days. Should I get it rmad?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Dunno about that its up to you mine was doing it 2-3 times per week. I would wipe everything including userdata, reflash stock rom and monitor before going through the rigmorole of the RMA to make sure its deffo a hardware fault. Biggest problem with the RMA is the fact they put a hold on your credit/debit card for the price of the phone. So basically if you don't have the funds available you are shafted (I think you would have to send off to LG in that case).

I got the same problem ..just that my n4 back cracked while was charging :-\

maybe you should try to flash other kernel and rom if you cant solve this issus. if your N4 is unrooted then just bring it to LG store, you got warranty rite ?

[Q] Things to worry about in the nexus 4?

Hi, Riro Zizo here, previous HTC Desire Z user, and in about an hour and a half i'll get my nexus 4 from the shop
i'm asking, what are the main things i should check before buying it?
for example, the HTC Desire Z had SDS issue (Sudden Death Syndrom) where the emmc chip suddenly gets fried.
so are there any issues like this i should be worried about?

Riro Zizo said:
Hi, Riro Zizo here, previous HTC Desire Z user, and in about an hour and a half i'll get my nexus 4 from the shop
i'm asking, what are the main things i should check before buying it?
for example, the HTC Desire Z had SDS issue (Sudden Death Syndrom) where the emmc chip suddenly gets fried.
so are there any issues like this i should be worried about?
Click to expand...
Click to collapse
battery drain (for some users)
you can easily feel the warmth of the phone (not sure if its good or bad since cpu releasing heat means cpu getting cooler)

ngoralph said:
battery drain (for some users)
you can easily feel the warmth of the phone (not sure if its good or bad since cpu releasing heat means cpu getting cooler)
Click to expand...
Click to collapse
oh cool, so nothing really dangerous thanks.

Avoid total battery discharge due to risk for permanent battery damage (red light of death). What happened also to me - vibration stopped working, and I am waiting for repair/replacement now. However when you chck the web you'll easily notice that we're not that many that suffered of this lemon. I've found just 2 or 3 loosers like me

forever_lol said:
Avoid total battery discharge due to risk for permanent battery damage (red light of death). What happened also to me - vibration stopped working, and I am waiting for repair/replacement now. However when you chck the web you'll easily notice that we're not that many that suffered of this lemon. I've found just 2 or 3 loosers like me
Click to expand...
Click to collapse
this. however i discharged it to 0% a couple of times and nothing went bad. ^^ Also you should buy case because there is so much glass on the phone...

maxiiik said:
this. however i discharged it to 0% a couple of times and nothing went bad. ^^ Also you should buy case because there is so much glass on the phone...
Click to expand...
Click to collapse
When I discharged battery in a regular way I mean...my device just shut down by itself - then indeed nothing happened. At this stage there was really nothing to worry cos there was still some power ... enough to boot into bootloader/recovery. I decided to go further: I went into to recovery and waited until it dies. Battery was completely discharged and once I plugged wall charger red light of death said hello Hopefully after 5 minutes of charging white charging animation appeared.

I just got my nexus 4, i directly wiped it and installed PAC rom. EPIC...ly EPIC phone!!

[Q] Miscalibrated battery, need help!

I need some suggestions on how to calibrate the battery on my n4. It got miscalibrated when I did the update 4.2 to 4.3 and I haven't been able to calibrate it since then, a week ago.
I tried using battery calibration from the store but it didn't work, I tried charging the phone from 0 to 100 and it didn't work.
I remember I had the same problem 2 years ago with my Atrix and I solved it by wiping the battery stats from recovery, but now twrp and Cwm removed this feature and I don't know how to solve my problem.
Maybe it would help flashing all back to stock with the toolkit?
If you have any suggestions I'd really appreciate it.

http://forum.xda-developers.com/showthread.php?t=1460553

qoolix said:
http://forum.xda-developers.com/showthread.php?t=1460553
Click to expand...
Click to collapse
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?

Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app

failly said:
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?

Elwood_It said:
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?
Click to expand...
Click to collapse
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!

Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.

korockinout13 said:
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.
Click to expand...
Click to collapse
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.

Elwood_It said:
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.
Click to expand...
Click to collapse
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.

korockinout13 said:
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.
Click to expand...
Click to collapse
Hi,
I'm having a similar issue. Phone rebooting to weird battery levels (not the %age it shutdown at).
Phone shutting down at 31% battery and rebooting to 0%.
I tried charging only to 100% yesterday with the phone ON.
Do I have to charge it even after it's charged to 100%?

failly said:
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!
Click to expand...
Click to collapse
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.

japmeet said:
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.
Click to expand...
Click to collapse
Before you replace the battery try to disconnect the battery's flex cable and reconnect it [after you charge to device to 100% and turn it off of course] check if its 'reset' the battery.

Massive battery drain and an eternity to charge

Hi,
This past week, my G2 has had massive problems with the battery draining when I have been doing basic things like web browsing etc.... I can literally watch the battery drop %'s every few minutes... the phone also gets extrmely hot up the top of the phone around near camera, it gets to about 50 degree... and to make things even more worringly it takes all day to charge to full, instead of it charging to full in an hour or so it will barely get to 50% overnight..
Does anyone have any ideas what the hell is going on??? It's running stock EU KK ROM

I'm having the same issue. For me it seems to be triggered when I connect to bluetooth in my car. Once the battery drain is triggered it continues even after I get of the car. I've gotten in the habit of rebooting my phone every time a turn off the car. A major pain but it works until I find a better solution. I've been thinking about wipping the phone but I don't want to go through the hassle if I can avoid it.
Sent from my LG-D801 using XDA Free mobile app

death_entry said:
Hi,
This past week, my G2 has had massive problems with the battery draining when I have been doing basic things like web browsing etc.... I can literally watch the battery drop %'s every few minutes... the phone also gets extrmely hot up the top of the phone around near camera, it gets to about 50 degree... and to make things even more worringly it takes all day to charge to full, instead of it charging to full in an hour or so it will barely get to 50% overnight..
Does anyone have any ideas what the hell is going on??? It's running stock EU KK ROM
Click to expand...
Click to collapse
First thing I guess would be to try a battery stats app (Gsam for instance) and have that running from a full charge to see if anything is running without your knowledge.

Not even with a separate app, did you guys take a look at the "stock" battery stats?
I had once a big battery drain that was caused by the media server.
If I helped you, please thank me

Ive currently tried every battery stats app i can get my hands on lol..... I've gone through the 50+ battery guide using titanium back up.... I've disabled startup programs.... Geez even Sonic the hedgehog Ep2 was for some reason just always doing something and i never touch it lol.... Anyway I'll keep a close eye on it but i still can't explain the long charge times.... Maybe something will come up
Yeh I checked stock battery stats, the main hog seems to be bluetooth when it's not even switched on :/

death_entry said:
Ive currently tried every battery stats app i can get my hands on lol..... I've gone through the 50+ battery guide using titanium back up.... I've disabled startup programs.... Geez even Sonic the hedgehog Ep2 was for some reason just always doing something and i never touch it lol.... Anyway I'll keep a close eye on it but i still can't explain the long charge times.... Maybe something will come up
Yeh I checked stock battery stats, the main hog seems to be bluetooth when it's not even switched on :/
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What cable you using? All cables are not created equally. Try the cable and charger the phone came with. if that's not it try a different cable.

drynyks said:
What cable you using? All cables are not created equally. Try the cable and charger the phone came with. if that's not it try a different cable.
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Im using loads of different cables...
I actually *think* I found the very unlikely culprit.... Google Chrome Camera!!!!!! Someone else commented on the exact same problems as me on the Play Store... which sounds about right because I've had the charging probs about as long as I installed the app.... So I've removed it and hopefully thats fixed it

death_entry said:
Im using loads of different cables...
I actually *think* I found the very unlikely culprit.... Google Chrome Camera!!!!!! Someone else commented on the exact same problems as me on the Play Store... which sounds about right because I've had the charging probs about as long as I installed the app.... So I've removed it and hopefully thats fixed it
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I could see the app maybe causing the drain but I think it highly unlikely it affecting charging. I still like the cable idea for your slow charge. Go find your white one the phone came with and try it =)