[Q] G2 battery level abnormal drop, please help - G2 Q&A, Help & Troubleshooting

I have an AT&T G2. The battery is good, at most time. It can support one day heavy use and I'm quite satisfied.
But sometimes the battery drops quickly when screen is off with no reason. The drop rate is about 6% per hour (normally it only consumes 3% per night, about 0.5% per hour). This had happened about 10 times during 1 month since I bought it. Sometimes during the night, sometimes during the daytime that I'm not using it.
It can be cured after a reboot, but it is quite annoying when u want to use the phone and find the battery level is far below the expectation.
I install the betterBatteryStats, but all the wakelocks seems normal. And I'm sure didn't install/open any online streaming apps that run in the background. It just look like some process is stuck there and keep draining battery, but I can't find any clues which one it is.
Please help...

You are welcomed into my comparative battery thread in the general forum, where I could help you if provided with what I ask there.
Sent from my LG-D802 using XDA Premium 4 mobile app

thank you for offering help
I'll reply ur post
Noam23 said:
You are welcomed into my comparative battery thread in the general forum, where I could help you if provided with what I ask there.
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse

I had this as well on the stock rom & kernel, i now use a custom kernel which greatly enhances the battery life.
Although the battery life was good, the wake locks @ night where killing it using 60% in 5 hours.

Related

Battery problem

Hi folks....m using galaxy note...it's not rooted...the battery doesn't last long enough as it is claimed... is it something wrong with my phone or is this what they mean by long battery life... i text alot and during texting and playing gamea my phone gets warmed up and the battery lasts less than 3hours if i continue texting...my kernel version is [email protected]#2.....please help....
Sent from my GT-N7000 using XDA
It sound like you have a faulty battery if it only lasts three hours, I think you would have to be gaming to flatten a good battery in that time.
John.
Mine is the same. If I'm browsing the web, using instagram, Facebook and receiving email my battery will go from full to empt in easily 3 to 4 hours.
Backup, factory reset, reinstall apps from market (try to install only the ones you use a lot at first), restore the data you need. If you're still seeing the same things happening, install a battery logger / system logger. Use this guide to see if there's a rogue app that's causing the trouble: http://forum.xda-developers.com/showthread.php?t=937080
If it's still acting up and you cannot identify any unusual drain, I'd ask for a replacement.
After you get things sorted, you can use apps like Juice Defender from the Market to prolong your battery life even more.
-KJ
thanks guys for the sincere contribution.... i hope your advices help me...
my top battery consuming activities are:
temple run
google play
msging
go launcher
and nothing else
gaming and browsing certainly make the battery drain almost visibly..
things above and beyond the above to try include..
1. reduce screen brightness
2. reduce frequency of or disable background updates by apps
3. no vibrate notifications
4. work more, play less!..lol
the battery life of the Note is great, unless you use it .. a battery monitor will allow you to see the battery drain over time..this will help when you address item #2 above.. if you accept default refresh times, and have lots of social apps your battery can die in 6-7 hrs without even using the Note at all!..
I really love when people give the tip to not use your phone as a battery saving tip
forum.xda-developers.com/showthread.php?t=1600691
some hints for better battery life
Got mine the other day. First charge battery was fine. Second charge went down 7% in about 5-10 mins. Then it restarted :/ Came back on, down to 88%. Turned the phone off as was frustrating me as it restarted 3 times yesterday. But when I turned it back on I was at 83%?
Hasn't last me the day, it's on charge now. When it pops up telling me to charge it tells me to shut all apps and that using while charging may effect it charging. Is this correct? I didn't think it would have anything to do with it?
3 to the 4 hours continuous use is normal... Only if your phone is standby and then depletes in that time You should be worried. I recommend researching wakelocks in that case.
There are many variables that can atribute to batterylife depletion. Eliminate those first and you will have your answer.
I had best results on stunner version 19. To bad it has the death kernel (leaked ics)
Sent from my GT-N7000 using Tapatalk 2
I am facing a similar issue, facing a massive wakelock by PowerManagerService. It keeps the phone awake all the time?
Any suggestions?
shrayv said:
I am facing a similar issue, facing a massive wakelock by PowerManagerService. It keeps the phone awake all the time?
Any suggestions?
Click to expand...
Click to collapse
Usually that wakelock is there cause you are charging, or have USB plugged in
Edit, I was wrong, sorry, this guy is right, I think http://forum.xda-developers.com/showthread.php?t=1340066
Sent from my GT-N7000
http://forum.xda-developers.com/showthread.php?p=16808932 this has some good android tips
Sent from my GT-N7000
I have my note now for 2 days and i see a lil issue with the fast draining to battery power. Although i have been on it for a few hours its expected but i shall try these tips cause they do help
Sent from my GT-N7000 using XDA
craiigman said:
Got mine the other day. First charge battery was fine. Second charge went down 7% in about 5-10 mins. Then it restarted :/ Came back on, down to 88%. Turned the phone off as was frustrating me as it restarted 3 times yesterday. But when I turned it back on I was at 83%?
Hasn't last me the day, it's on charge now. When it pops up telling me to charge it tells me to shut all apps and that using while charging may effect it charging. Is this correct? I didn't think it would have anything to do with it?
Click to expand...
Click to collapse
Drain your battery up to 20%....then charge it againg. ....try charging overnite.....it worked for me...u can try juice defender also
Sent from my GT-N7000 using xda premium
Had the note for 2 days. It came with LA4 FW and updated via Samsung Apps for the latest FW.
Battery drain, that was none on LA4 became very strong!
Installed Better Battery Stats and discovered that the CPU was always running.
Factory reset solved it...
Regards
Nuno
forum.xda-developers.com/showthread.php?t=1600691
This one has some note specific tips, also pretty good. I concur on the speedmod kernel, its awesome
Sent from my GT-N7000 using Tapatalk 2
I can recommend "2x Battery" free app. I'm using it today and making a very noticeable difference.
Sent from my GT-N7000 using XDA

Should I exhange? Massive battery drain.

I have had my S4 for 5 days, battery lasts me only 5-6 hours at best. Moderate useage. Disabled all bloatware and apps I am not using. Not having the Maps issue, also turned off all the air gesture stuff and etc. Should I get it replaced?
Sent from my SAMSUNG-SGH-I337 using xda premium
Is your screen at max brightness? When you click on your screen in that screen what kind of on time are you getting before it's dead? I get 3-4 hours usually
Its all the way down and on auto. And it says 1 hour and 45 mins
Sent from my SAMSUNG-SGH-I337 using xda premium
What does betterbatterystats say?
I have the same problem, but I get around 2:30 screen on. About 6-8 hours usage, I've been trying different ways of charging to see if it will extend life, I might try to use power saver mode next if I can't find a way to get better life.
I have same problem too. This is day 7 for me since I acquired the device. The first day I thought the drain was from the amount of usage during my setting up the device. But now even after a full charge. It will be down to 92% just sitting in my holster in about an hours time. The battery would drain in about 8 to 10 hours.
The only massive usage in the battery status page I see is the screen and I have set that at lowest brightness and then auto. Im using battery saver as well. Im thinking about taking this to AT&T store tomorrow to see about battery or device replacement.
We shall see.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
CAG-man said:
...But now even after a full charge. It will be down to 92% just sitting in my holster in about an hours time...
Click to expand...
Click to collapse
That is definitely abnormally high battery drain. I get less than 1.5% drain / hour when the phone is idle. So your drain seems to be more than 5 times higher!
It may be a misbehaving app.
BetterBatteryStats, is good because it gives you detailed info on what is consuming your battery.
This is what mine looks like
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
If you are in a building with pretty thick walls that could drain your battery also due to the phone using more power to acquire a signal. I work in a building that house a lot of servers and notice it uses more battery than when I'm not at work.
electrogiz said:
I have had my S4 for 5 days, battery lasts me only 5-6 hours at best. Moderate useage. Disabled all bloatware and apps I am not using. Not having the Maps issue, also turned off all the air gesture stuff and etc. Should I get it replaced?
Sent from my SAMSUNG-SGH-I337 using xda premium
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Click to collapse
I see you're using slacker radio, most streaming services will eat battery up. If you click that what's the run time on it?
crystalstylez said:
If you are in a building with pretty thick walls that could drain your battery also due to the phone using more power to acquire a signal. I work in a building that house a lot of servers and notice it uses more battery than when I'm not at work.
Click to expand...
Click to collapse
This i can agree with, when i visit my parents in the middle of nowhere my battery on any phone every has always died in 3 hours looking for a signal so this might be relevant if you're in a porr signal area.
If you're curious about where you sit for coverage try this app RF Signal Tracker - Play Store Link
Typical battery life. Auto brightness. Poor signal also and on wifi.
Sent from my SAMSUNG-SGH-I337 using xda premium
I'm having this problem too, I don't understand BBS but here's a screenshot of the screen.
I'm tired of this, how can a new and expensive cellphone's battery lasts like 8 hours without even really using it.
My drain was resolved. Android battery stats indicated the screen was draining the battery. BBS indicated my WIFI use was. But neither usage seemed too much.
A visit to the local AT&T store got me a new battery. Albeit some arm twisting occured trying to convince them of the hardware issue.
Yesterday, after overnight charge the previous night, I ended the day with a 72 % battery.
Did a quick charge to 100 percent this morning and my charge dropped 1% in 1 hour. With heavy usage, I sit currently at 72%.
Much better results and happier.
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[Q] Battery life.. (android system)

Hi all.
Just a quick question. My battery life is great but i feel like it could be much better. Here are my current stats as i write this.
With this its saying i will get under 4 hours screen on time, i wouldnt say i was a heavy user. I use my phone quite a bit but i wouldnt say it was alot.My biggest problem is with the android system anyone else have it as such a big drain? Somedays its sat up at 40%
Anyone know what i can do to rectify this? Im currently not rooted..
Thanks in advance
Liam
There are just two possibilities.
LG stock rom is so bloated that it sucks most of battery or GRAM feature is so good that screen time is not really problem anymore.
Forgot to mention, my screen time was 2hr 30 so probably looking at not even getting 4 hours screen on time.. Gonna have to guess that it's the stock rom sucking up loads of battery? Would that cause the android system percentage to be so high?
I'm having the same issue here.. Getting 4 hours screen ttime though...
Sent from my LG-D802 using xda app-developers app
Im Getting just under 4 hours!
would be nice to be getting more, dont get why android system is taking up so much!
Your signal is bad, and google play service is too high.
My android system is very high too but i can reach 5hours sot easily
Sent from my LG-D802 using xda app-developers app
Xenovias said:
Your signal is bad, and google play service is too high.
My android system is very high too but i can reach 5hours sot easily
Sent from my LG-D802 using xda app-developers app
Click to expand...
Click to collapse
install greenify. it save my battery. last longer.
I can easily reach 6 hours screen on time. And I'm a heavy user and by no means try to save battery. multiple social networks, emails syncing etc often streaming music and watch videos and brightness set to a constant 75%. This is on StockModRom. So yeah I'd say something is draining your battery unnecessarily there.
Try installing better battery stats:
http://forum.xda-developers.com/showthread.php?t=1179809
see if anything is keeping your phone awake, I'm sure the guys over at that forum can help you, don't forget to Thank/donate to the guy if his app helped you. Whats your drain when phone is left overnight? mine varies between 0-3%.
shaldi said:
install greenify. it save my battery. last longer.
Click to expand...
Click to collapse
Not Rooted
Merfy said:
I can easily reach 6 hours screen on time. And I'm a heavy user and by no means try to save battery. multiple social networks, emails syncing etc often streaming music and watch videos and brightness set to a constant 75%. This is on StockModRom. So yeah I'd say something is draining your battery unnecessarily there.
Try installing better battery stats:
http://forum.xda-developers.com/showthread.php?t=1179809
see if anything is keeping your phone awake, I'm sure the guys over at that forum can help you, don't forget to Thank/donate to the guy if his app helped you. Whats your drain when phone is left overnight? mine varies between 0-3%.
Click to expand...
Click to collapse
Installed better battery stats today! will see what that throws up..
wow, your battery is tons better than mine, although overnight i get similar drops only a 3% drop maximum..
Strange..
Hopefully better battery stats will show me whats up!
Okay last night over night the battery dropped 10% im pretty sure this is not normal.. gonna have to dig deep and find the cause..
ldorbin said:
Okay last night over night the battery dropped 10% im pretty sure this is not normal.. gonna have to dig deep and find the cause..
Click to expand...
Click to collapse
If you find one, please let me know. As Android System is also eating my battery.
Sent from my LG-D800 using xda app-developers app
Strangely, for me, when I go over ~2h screen time the Android System drain is taken over by the Screen drain. This being said, I never got over 3h30m of screen time - this is with about 10h WiFi (including overnight => ~2% drain) and about 7h 3G. I have noticed plenty of crap among the kernel wakelocks, but I lack the knowledge to remove them in the source code and rebuild the kernel.
Also, BBS is among the apps that trigger a Qualcomm bug regarding sensor kernel wakelocks (sns_async_ev_wakelock), which, obviously, lead to more battery drain.
All of this is not really acceptable coming from a company like Qualcomm (the sensor bug, in particular, is present ever since the S3 QC version...).
I'll second that Greenify is pretty good at saving battery.
I too have had a screen on time of 6 hours 11 mins over a duration of being off charge for over 14 hours
I'm using StockMOD kernel but the ROM itself is stock as i can't seem to get StockMOD rom to boot.
Also if you Root try TricksterMOD and use multicore savings etc maybe get a bit more life from your battery
Hope battery life gets better for you as it is an awesome phone would be nice for you to enjoy it as much as the rest of us
callum1986 said:
I'll second that Greenify is pretty good at saving battery.
I too have had a screen on time of 6 hours 11 mins over a duration of being off charge for over 14 hours
I'm using StockMOD kernel but the ROM itself is stock as i can't seem to get StockMOD rom to boot.
Also if you Root try TricksterMOD and use multicore savings etc maybe get a bit more life from your battery
Hope battery life gets better for you as it is an awesome phone would be nice for you to enjoy it as much as the rest of us
Click to expand...
Click to collapse
I'll look into trickster. But when I first got my G2 I was blown away by the battery. Now its not much better than my s4..
Sent from my LG-D800 using xda app-developers app
Yea let us know how you get on could just be something holding the phone awake that'll kill it in know time as suggested before download better battery stats it's pretty good at helping find the culprit
Sent from my LG-D800 using xda app-developers app[/QUOTE]
Okay, so i gave up finding what it was. did a system restore and well what can i say? apart from WOW.
been on for 26 hours now with 2hr 20mins screen on time and still at 62% absolutely amazing!
still unsure whether to root and try and squeeze even more battery out of it!
Still annoyed i never found out what was causing the issue..
Wow just wow. This was my last charge, absolutley incredible.
This includes 1hr 45min of music streaming.
Streaming a 2hr 20 min film.
Twitter/facebook/emails and a tiny maybe 10 mins of web browsing.
I have with cyanogenmod 11 a very nice Akku.
99% Akku - 5 hours standby (Internet GPS.... On)
58% Akku - 4.5 houers tune in radio (everytime Internet on)
I think that's whery good
Sent from my LG-D802 using xda app-developers app

mm-qcamera-daemon destroying battery

So yesterday I noticed my phone was pretty warm when I pulled it out after school and I saw the battery and it was at a good 60% and I only used it for 15 minutes prior. I looked in the battery stats and it said the process mm-qcamera-daemon used the majority of the 40% of battery I lost
Today was the same thing, but it was a little better after I froze some apps that use the camera. However, it still used over 20% of the battery.
If anyone had a solution that would be awesome!
Sent from my SM-N900P using xda app-developers app
itzkpanda said:
So yesterday I noticed my phone was pretty warm when I pulled it out after school and I saw the battery and it was at a good 60% and I only used it for 15 minutes prior. I looked in the battery stats and it said the process mm-qcamera-daemon used the majority of the 40% of battery I lost
Today was the same thing, but it was a little better after I froze some apps that use the camera. However, it still used over 20% of the battery.
If anyone had a solution that would be awesome!
Sent from my SM-N900P using xda app-developers app
Click to expand...
Click to collapse
Hey mate here is a thread where this issue is being discussed - http://forum.xda-developers.com/showthread.php?t=2464653
Next time, please try and search before creating new threads as the answer might be out there already. Cheers!

[Q] Terrible Battery Life

Hi guys, my glaxy s4 has terrible battery life. Like after 5 hours, i need to recharge my phone again. My phone is rooted and on CM 12 (UB ROM). I tried to remove facebook but no luck. How can i improve my battery life? I provided a sceenshot of my battery usage.
I appreciate your help. Thanks in advance
Use BBS and check wakelocks
If ur using it all the way for 5 hours straight, it's normal.
worktorest said:
If ur using it all the way for 5 hours straight, it's normal.
Click to expand...
Click to collapse
Are you sure? S4's battery is 2600 mAh. It should take about 15 hours or more to make the battery become low with minutes of gaming.. I have S3 mini and its battery is 1500 mAh and it takes about 12 hours or more to make the battery become low.
I can get 5 hours on 60 percent but I gotta be using battery saver with data off when I lock the acreen
take a look at this:
http://forum.xda-developers.com/showpost.php?p=59922819&postcount=12
Thanks, i will try it
Sent from my GT-I9505 using XDA Free mobile app
Gaming or watching movies will discharge your battery in a few hours. 4,5 or 6 hours max. Depending on what you're doing and other stuff like wifi and screen brightness.
GDReaper said:
Gaming or watching movies will discharge your battery in a few hours. 4,5 or 6 hours max. Depending on what you're doing and other stuff like wifi and screen brightness.
Click to expand...
Click to collapse
But i have galaxy s3 mini and its battery life is longer than s4. S3 mini's battery is 1500mAh, s4 is 2600mAh. S4's battery life is supposed to be longer than s3's
Battery life. Oh and i tried not to play games but tue battery life is still terrible. I hate it.
Sent from my GT-I9505 using XDA Free mobile app
xxhunterxx11 said:
But i have galaxy s3 mini and its battery life is longer than s4. S3 mini's battery is 1500mAh, s4 is 2600mAh. S4's battery life is supposed to be longer than s3's
Battery life. Oh and i tried not to play games but tue battery life is still terrible. I hate it.
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
Was the battery life always terrible or is it just now?
I'm having a similar problem so I'll use this thread instead of creating a new one. I hope you don't mind.
My battery is draining at a rate of 15% per hour even If I leave it on standby, ocasionally turning on the screen to get a message on Whatsapp of checking the time. It was 100% this morning, 1 and a half hours later, 74%.
After reading on the forums that the cause of the battery drain could be that the phone was constantly trying to get network signal (in cases where the signal is poor, like where I live), I decided to switch on airplane mode. To my surprise, in 3 minutes after this the phone was in 75%. 10 minutes later and I got a 76%. As I write (on PC) it is on 80%.
That's right. The phone started "recharging" without a cable (I know this is impossible, just describing what the display shows me) after I turned on airplane mode.
Any ideas about what might be going on and how can I solve this?
Thanks in advance!
P.S.: It's not the battery itself, as I've bought a brand-new, samsung original battery and the draining was still the same
EDIT: the battery started behaving like this only a few weeks ago. So I'd assume that the signal problem could be helping, but would not be the main reason on why my battery goes down so quickly.
Venorian said:
I'm having a similar problem so I'll use this thread instead of creating a new one. I hope you don't mind.
My battery is draining at a rate of 15% per hour even If I leave it on standby, ocasionally turning on the screen to get a message on Whatsapp of checking the time. It was 100% this morning, 1 and a half hours later, 74%.
After reading on the forums that the cause of the battery drain could be that the phone was constantly trying to get network signal (in cases where the signal is poor, like where I live), I decided to switch on airplane mode. To my surprise, in 3 minutes after this the phone was in 75%. 10 minutes later and I got a 76%. As I write (on PC) it is on 80%.
That's right. The phone started "recharging" without a cable (I know this is impossible, just describing what the display shows me) after I turned on airplane mode.
Any ideas about what might be going on and how can I solve this?
Thanks in advance!
P.S.: It's not the battery itself, as I've bought a brand-new, samsung original battery and the draining was still the same
EDIT: the battery started behaving like this only a few weeks ago. So I'd assume that the signal problem could be helping, but would not be the main reason on why my battery goes down so quickly.
Click to expand...
Click to collapse
I loose battery at the same speeed, but my signal is not so poor.
Not tried the airplane mode, but i'm sure that if i put to charge it charge quickly, too quickly.... like it was 80% 5 min after 90%
GDReaper said:
Was the battery life always terrible or is it just now?
Click to expand...
Click to collapse
It was terrible from the beginning. I cant replace the battery because my phone is rooted and my warranty is now void. And i won't buy a new battery because i believe the problem wiol not be solved.
Sent from my GT-I9505 using XDA Free mobile app
What if i flash the official firmware from samsung? Will it fix the battery issue?
Sent from my GT-I9505 using XDA Free mobile app
xxhunterxx11 said:
What if i flash the official firmware from samsung? Will it fix the battery issue?
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
You could try that and see if it is a rom problem.
Otherwise try to borrow a battery from somewhere just to be sure it isn't the battery.

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