Battery not lasting more than 7 hrs after jellybean update - Galaxy Tab 2 General

My p3100 battery is not lasting more than 7hrs after jellybean update..earlier it use to last more than 20 hrs...i dunno wat is happening...yesterday the battery was fully drained so i plugged in the charger but within an hour it showed battery full so i unplugged it and after 1hr of use it again showed low battery so i switched it off n turned it on then after that it took around 4hrs to get charged...n from then the battery is not lasting more than 7to max 8 hrs that too with minimal useage..help me guyzz wat to do ???
Sent from my GT-P3100 using xda app-developers app

kyahaiyaar said:
My p3100 battery is not lasting more than 7hrs after jellybean update..earlier it use to last more than 20 hrs...i dunno wat is happening...yesterday the battery was fully drained so i plugged in the charger but within an hour it showed battery full so i unplugged it and after 1hr of use it again showed low battery so i switched it off n turned it on then after that it took around 4hrs to get charged...n from then the battery is not lasting more than 7to max 8 hrs that too with minimal useage..help me guyzz wat to do ???
Sent from my GT-P3100 using xda app-developers app
Click to expand...
Click to collapse
I have the same impression....did not count times but I think the battery lasts less...
I'm on taiwan 4.1.1 stock

same problem here, i am stock OTA 4.1.1 (india)

download CPU spy to check and make sure it's still going into Deep Sleep when the screen is off.
Also if your rooted use No Frills CPU (or any other CPU tuner type app) and change the governor from interactive to hotplug, hotplug disables one of the CPU cores when not needed thereby saving battery.

Even for me as well and so many issues so many things missing in the update like
1.Screen capture app is missing.
2.Lock screen is stock in portrait not turning to landscape unable to solve it.
3.Battery is draining so fastly as compared to before.
4.All the apps not responding instantly it is taking time to respond and even i need to reopen it as it is not opening for long time
5.Main thing is Notification bar is too small compared to before and unable to see signal info properly
6.And the home screen seems more crispy i didn't like it at all
and finally before it looks like a tablet now it look like a phone in considering with the notification bar and typical buttons like home screen......

daniel644 said:
download CPU spy to check and make sure it's still going into Deep Sleep when the screen is off.
Also if your rooted use No Frills CPU (or any other CPU tuner type app) and change the governor from interactive to hotplug, hotplug disables one of the CPU cores when not needed thereby saving battery.
Click to expand...
Click to collapse
Daniel, it is going into deep sleep.. It's driving me crazy the way it still uses up battery..Also like said by others,notification bar is too small..Can not read anything on it (battery percentage, wi-fi signal, notifications..)..Any other ideas?

I saw massive drain after I installed the latest Samsung push service update. I unistalled the update and everything back to normal.
Sent from my GT-P3100

Related

x10 battery disaster

hello guys i have x10a fw r2ba026 rooted and i install setcpu and i have 2 task killers systempanel and process manager but still i dont see any improvement in my battery life i dont even know what to do. please guys when u read this thread please reply. i went to my battery use and this is the result i got it says 8 hours since unplugged but i unplugged like 13 hours ago i dont know why its saying that please help
8h 20m 39s since unplugged
display 72%
cell standby 8%
voice calls 6%
phone idle 5%
android system 3%
maps 3%
browser 2%
wifi 2%
the_ahmadzais said:
2 task killers systempanel and process manager but still i dont see any improvement in my battery life
Click to expand...
Click to collapse
i would not bother running task killers. i have not got anything like that running in my rooted 26 and i can get 2 days from a charge with general usage. Task killers run and actually chew up more power than they free up and on another note, android itself is very clever at handling resources. you do not need to have 80% of your ram free (read: wasted) in order for your phone to be running well. android will kill off tasks as required.
my advise, ditch your task killers and enjoy longer battery life
I agree, automatic task killers are a complete waste of time.
Ditch the task killers. Seriously.
Also make sure your screen brightness isn't too high. Just wastes battery for nothing.
should i uninstall setcpu also? or keep it ? i uninstall process manager but havnt uninstalled systempanel
battery
on my x10 firmware v...26 rooted, battery lasts over 3 days. HOWEVER for 30hours was in plane mode and i use SetCPU in powersave mode...It's third week since i bought the phone. And screen brightness is on automatic. In that 3 days 1 reboot, few calls, mp3s, video clips, vwifi web browsing for a few minutes. If I want to play for instance NFS shift It will last for only a few hours...
@kremx can u tell me your setcpu profile settings? r u using any task killers?
I use setcpu and juice defender, both on automatic settings and set to start on bootup. Batt lasts 2 days with normal usage
[email protected] said:
I agree, automatic task killers are a complete waste of time.
Click to expand...
Click to collapse
I see that said a lot on here, has the theory been tested at all, is there any data to support that?
In response to the O.P, I use Advanced Task Killer and SetCPU.
i use setcpu and juice defender, works well for me, i get bout 20 hours of heavy usage out of my phone which is a lot better then when i first got it (got like 6 hrs of battery life), i am also running 020
edit: am also using helix launcher
mate as bin said by others, cant stress enuf, get rid of any task killers and battery aids as i hav found they do more harm, since the update the only thing i use is SEEPU to monitor the processor and memory, and my battery life has improved on mass amount, typical day, unplug at midnite, 3%/4% used overnight, bluetooth on at 8 till 4.30 with gps and sometimes wifi with few phone calls and tx plus bit of browsing market etc, by time i get home for 5.30 i still hav 65% left, so could easy do 2 day, if i turned it all off i reckon i could prob get 3 half day out of the battery maybe little more
@Shonan_ thanks an ill delete all taskkiller on phone to see how it goes. what is seepu app for i saw it on market how do i use it? does it have any benefit?
Imho task killers, setcpu etc. do more harm than help. Your display usage seems high what is your display timeout? Mines set at a minute and while my battery only lasts a day, the r1f fw my battery would only last 4-6 hours. Definite improvement. Hope this helps
Sent from my X10a using XDA App
i download helix launcher omg in 6 hours i only lost 5% with like 15 texts and 10 mins call and 45 mins browsing. wow every1 should install helix launcher donut.
the_ahmadzais said:
wow every1 should install helix launcher donut.
Click to expand...
Click to collapse
Nice! glad to hear it is going better for you
FWIW - i run ADW launcher on mine, no task killers/CPU or Battery tools and short screen timeouts. I get great battery life.
Turn down the display brightness!!!
the_ahmadzais said:
hello guys i have x10a fw r2ba026 rooted and i install setcpu and i have 2 task killers systempanel and process manager but still i dont see any improvement in my battery life i dont even know what to do. please guys when u read this thread please reply. i went to my battery use and this is the result i got it says 8 hours since unplugged but i unplugged like 13 hours ago i dont know why its saying that please help
8h 20m 39s since unplugged
display 72%
cell standby 8%
voice calls 6%
phone idle 5%
android system 3%
maps 3%
browser 2%
wifi 2%
Click to expand...
Click to collapse
72% of your battery goes to display! Man that should give a clue!
Turn down the brightness of your display, way down. 20% brightness perhaps, that's what I can live with under most weather circumstances.
Even with auto-brightness my display doesn't eat THAT much battery.
Do you live perhaps in a very sunny area, that you keep your display so bright??
Anyway, to improve your battery life, turn down the brightness!!
I found juice defender made a difference. Before I installed it Android System was using the most power, now it's screen which is as it should be!
sent from my rooted x10i using XDA App
tnleeuw said:
72% of your battery goes to display! Man that should give a clue!
Turn down the brightness of your display, way down. 20% brightness perhaps, that's what I can live with under most weather circumstances.
Even with auto-brightness my display doesn't eat THAT much battery.
Do you live perhaps in a very sunny area, that you keep your display so bright??
Anyway, to improve your battery life, turn down the brightness!!
Click to expand...
Click to collapse
I also dont get great battery life and the display is always using at least 70% of it when I check the usage but when I turn off auto brightness it ends up being brighter even when its manually turned all the way down so it seems auto would make more sense....
First let me tell you exactly what my phone says
9 Hours 42 Minutes since unplugged
Battery Level 84 %
Display 41 %
The major things that can help in saving the battery is killing the 3G and Manually set the brightness.
am using the 3G only when i need it , i wont keep it running all the time, the reason of that is most of our apps mails etc, will Auto sync , and that will eat your batter.
Plus : Stop GPS , Bluetooth when it is not needed
why display shows 70 % of consumption ?? (((( cause you have 4 inches LCD screen ))) , smaller the screen the less it will use .
Task Killer , is not for saving battery , it is for freeing your RAM , X10 has 384 MB RAM , Android is using more than 200 MB out of it , leaving you with less than 180 MB to run your apps , so if you run few apps your free RAM will start dropping and you will start feeling how heavy is it to start any app.
I agree to the post above.
Here are the check list to improve battery life:
If you use email, put the update duration to max, except for important mail account
Set brightness to automatic
Enabled GPS, Bluetooth and WiFI when required
Only enabled 3G when you are using the phone for internet access (Find a good 2G-3G switch apps, mine runs in notification), i also found talking on 2G line gives better quality specially if you live where 3G BTS is very scarce
Uninstall all task killer and battery management
Use less widget, widget updates also takes baterry
I usually able to run the phone without need to charge for 2 days for daily task such as check email, messaging, IM and few phone calls.
wlan - standby
... with juice plotter i have seen, that my wlan-standby (screen off) does not work correctly, if some apps (also no typical always on apps) are installed, but i cant remember which ones. So after installing new apps, i always check juice plotter after (in the standby mode) ...
... i know some apps are doing an intervall update, that is ok (you can see spikes in juice plotter) but a 100% time use is silly ...
... is there a app i can monitor, which app and when an app use wlan/gps/bt (time/open/close) ???

[Q] mikg 1.03 battery issues

This is by far my favorite Rom yet but I'm having battery issues that I haven't had before. I unplugged my phone last night at 100% and when i woke up 5 hours later my battery was at 68% normally it would only drop about 10% or less in 5 hours. any ideas? I have all new radios and wimax and such.
Is your phone sleeping?
Sent from my PC36100 using XDA App
Once we get a new custom kernel, it should remedy the battery issues on that ROM.
We just have to wait for HTC to release the source for the latest kernel.
OK stupid question how do I know if my phone is sleeping ?
At 7am I reset battery stats and put in a 100% battery (charged on an external charger)
Now (11:15) I am at 69% I expect this to get better once the batt stats are done.
I have new radios and the kernel for the ROM.
stock battery. i dont think my phone is sleeping.
If you have mobile data on, your battery will drain a lot faster, especially while we're all stuck with the stock kernel
No battery problems here. Altho it is the stock Kernel, i can easily use my phone for a full day with several calls, a bit of gaming and youtube (3G) while in the pooper and have 50-60% remaining in the evening
Try to reduce app sync frequency (you don't need that when in bed really..), LED notifications
No juice defender, or taskiller, or extended battery- just using setCPU with "onDemand" governor
That's about where mine is, too. I'm used to my SBC setup though, where I'd be at 85% by the end of the day.
You should not be losing that much battery over night. I generally only lose 2-3%. Have you checked your battery usage? Post a screen shot of it.
It looks like this
http://smartphoneblogging.com/wp-co...ngerbread_battery_consumption_app_graphic.png
You can see when your phone is awake vs screen off. And if you click on the apps in the list, it will tell you how long that app kept the phone awake,
So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.
gfullwr70 said:
So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.
Click to expand...
Click to collapse
Probably at the end of the month. :/
If watching paint dry is your thing, you can look back here
http://developer.htc.com/
my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps
gfullwr70 said:
my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps
Click to expand...
Click to collapse
So something is waking up your device then. You don't have the wake lock issue. Do you use google latitude? That is a huge battery hog
yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.
gfullwr70 said:
yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.
Click to expand...
Click to collapse
Try it w/o latitude on. I only drop 1-2 maybe 3% through the night once i turned those off. I have my facebook contacts set to sync once a day (don't really need more than that unless you add friends a lot or they update their picture frequently)
Weather I have set to 3 hours, but there is an option to update on device wake..so that isn't an issue either.
Give it a try and see if it helps.
Also if you haven't calibrated your battery, charge your phone to 100%, boot to recovery and wipe battery stats, drain battery til phone shuts off and then charge phone back to 100%. I can usually get about 24 hours of moderate use out of my phone.
ok will try those. i did battery wipe just yesterday
just click the link in my signature for some really good battery tips
OK guys so nothing I done helped my battery life while sleeping so I wiped wiped and wiped again and reflashed twice set everything back up and now my phone sleeps again. These roms can be funny like that sometimes I guess. Any thoughts on that?
Sent from my PC36100 using XDA Premium App
Roms, especially ones that are ports, can be weird like that sometimes. If a couple of wipes and a re-flash did the trick then I'd say that's great.
If not, then it's just bad luck I guess. Hopefully the kernel source will come out in the next few weeks and we'll be able to get kernels that can squeeze out better battery life.

Battery drain

I am on XXKB3. Since last few days I am noticing battery drains quite fast even though I keep wifi switched off at night. Any way to find the reason for this and solve the issue. Battery was charged to 98% and after 10 hours only it was 10%. Major usage was:
Cell standby 41%
Phone idle 36%
Display 10%
Wifi 5%w
Sent from GT-I9003 using XDA app.
---------------------------------------
GT-I9003, XXKB3, Deodexed
Wave 2, 8530, Bada 1.2, DDKA1
I am on XXKB3 - after 10 hours I am at about 50% with wifi on and mild usage.
jesrani said:
I am on XXKB3. Since last few days I am noticing battery drains quite fast even though I keep wifi switched off at night. Any way to find the reason for this and solve the issue. Battery was charged to 98% and after 10 hours only it was 10%. Major usage was:
Cell standby 41%
Phone idle 36%
Display 10%
Wifi 5%w
Sent from GT-I9003 using XDA app.
---------------------------------------
GT-I9003, XXKB3, Deodexed
Wave 2, 8530, Bada 1.2, DDKA1
Click to expand...
Click to collapse
do a continuous full discharge till offf
and then do a full charge without unpluging..
fooman123 said:
I am on XXKB3 - after 10 hours I am at about 50% with wifi on and mild usage.
Click to expand...
Click to collapse
Share with me your dark secret on how you've gotten 10hrs with Wi-Fi, Mine's doesn't even last that long.
from the first day i had to face this drain problem ,i traid many roms and apps like task killer juice defender etc but nun of them worked ,i think this is comman thing
First completely discharge until it switch off. Charge complete then switch off again connect the charger. It shows 100% then remove the battery and put it back and charge again until it shows 100%. Do this twice which will change your charging and discharging cycle.
Sent from my GT-I9003 using XDA App
hmm...getting some strange behavior.
I did discharge completely once but was unable to charge in one go.
Once, a couple of days back, battery was @ 25% or so and I rebooted and it went to less than 10%.
Yesterday charged till 98%, switched off WiFi at night. After 12 hrs I have 68%, don't know if it is good or bad.
You have to charge your mobile completely.. And one more thing change the display brightness to manual and low settings instead of automatic brightness. When its shows 98% means it hasn't charged fully. You have to sure its charged completely...
Hope it helps
Sent from my GT-I9003 using XDA App
farooqnawaz said:
You have to charge your mobile completely.. And one more thing change the display brightness to manual and low settings instead of automatic brightness. When its shows 98% means it hasn't charged fully. You have to sure its charged completely...
Hope it helps
Sent from my GT-I9003 using XDA App
Click to expand...
Click to collapse
Okay...Discharged completely and charged to 100%, power off, again charge to 100% in switch off mode and the power on. Did this twice in last 3 days. Now after about 30 minutes, it is already at 94%. Something's wrong.
jesrani said:
Okay...Discharged completely and charged to 100%, power off, again charge to 100% in switch off mode and the power on. Did this twice in last 3 days. Now after about 30 minutes, it is already at 94%. Something's wrong.
Click to expand...
Click to collapse
Go to Settings->About phone->Battery use and look what is eating your battery. Also you can tap on the point to see more detailed info
falex007 said:
Go to Settings->About phone->Battery use and look what is eating your battery. Also you can tap on the point to see more detailed info
Click to expand...
Click to collapse
In the first 30 minutes it was Cell standby, Phone Idel and Gallery which were consuming resources. I had not started Gallery actually. I killed all apps and now after almost 3Hrs20min, i am at 88%, not bad.
Misledz said:
Share with me your dark secret on how you've gotten 10hrs with Wi-Fi, Mine's doesn't even last that long.
Click to expand...
Click to collapse
Magic little app called.. SetCPU
Scaling: conservative
min: 300MHz
max: 1GHz
-- Set on boot.
Today I am at 80% after 10 hours.. wifi is always on.
fooman123 said:
Magic little app called.. SetCPU
Scaling: conservative
min: 300MHz
max: 1GHz
-- Set on boot.
Today I am at 80% after 10 hours.. wifi is always on.
Click to expand...
Click to collapse
Just checked it out but not free. When I searched "SetCPU" in AppBrain I also got free alternatives like CPUBoostLite and CPU Tuner. Will these work?
jesrani said:
Just checked it out but not free. When I searched "SetCPU" in AppBrain I also got free alternatives like CPUBoostLite and CPU Tuner. Will these work?
Click to expand...
Click to collapse
It was free for me without the "set on boot" option.
I used it for about week before, just setting it manually to see how it worked..
Then I paid for full version.
I don't know about the alternatives, as I have not tested them.
@ jesrani: Connect your Phone to your PC in mass storage mode, and delete the .thumbnails folder under DCIM (both, internal and external SD). Then go to Settings => Apps => Manage Apps and search for Gallery. Press Clear Data. This should help, if the gallery caused any problems.
My phone normally consumed about 0,8 to 1,0% an hour when in standby, and I got it down to about 0,6% an hour wit XXKB3 (no facebook, e-mail or contacts sync, no syncing widgets, only calendar sync every 30 minutes). So, whatever yours is doing - it's pretty extreme.
jesrani said:
Just checked it out but not free. When I searched "SetCPU" in AppBrain I also got free alternatives like CPUBoostLite and CPU Tuner. Will these work?
Click to expand...
Click to collapse
SetCpu is free for XDA members
http://forum.xda-developers.com/showthread.php?t=505419
zombi333 said:
SetCpu is free for XDA members
http://forum.xda-developers.com/showthread.php?t=505419
Click to expand...
Click to collapse
Thanks, downloaded and installed. Scaling is set to "Ondemand" in Main screen and "Set on boot" is selected, is this okay. One the advanced screen there is another "Set on boot" option, what is this?
Should any profile be created?
Are you guys sure. Setcpu requires support built into kernel . It won't work with stock kernel.
Sent from my GT-I9003 using XDA Premium App
you can still use setcpu to control CPU speed it just won't be able to OC without a custom kernel
trip007in said:
Are you guys sure. Setcpu requires support built into kernel . It won't work with stock kernel.
Sent from my GT-I9003 using XDA Premium App
Click to expand...
Click to collapse
After installing SetCPU the battery seemed to be better. But yesterday night it was at 39% and in morning, after about 8 hours it was at 1%. WiFi was off. So somethings not right yet.
I have deleted the thumbnails as suggested.
Maybe things will change if I flash to XXKPE!!

SM-N9005 4.4.2 Battery Issue

hoping to get some help...
i have update my SM-N9005 from 4.3 to 4.4.2 through Odin. rooted. with CWM Recovery.
tried probably 3 custom ROM that support 4.4.2 and end up on the Official leaked.Build 4.4.2 ( rooted)
the battery performance is driving me crazy.
on 4.3 stand By mode i used to loose 0.8 per hour now with the same setting same features turned on. i loose 2.3 percent per hour.
on 4.3 screen time with the lowest Brightness i lost 1 percent every 10 minutes. now i loose 3% with same brightness level. 3 percent every 10 minutes.
Android OS and Android System are always on top of screen in the battery Graph. i
media is also on top of the screen in the battery graph.
have tried a lot of solutions and factory reset with no luck at all. ( i have placed the device with Airplane mode with no SUCCESS )
installed a lot of battery analyzer apps did not have a clue who's eating all the Juice.....
any idea how to fix this??
SAMERKAD said:
hoping to get some help...
i have update my SM-N9005 from 4.3 to 4.4.2 through Odin. rooted. with CWM Recovery.
tried probably 3 custom ROM that support 4.4.2 and end up on the Official leaked.Build 4.4.2 ( rooted)
the battery performance is driving me crazy.
on 4.3 stand By mode i used to loose 0.8 per hour now with the same setting same features turned on. i loose 2.3 percent per hour.
on 4.3 screen time with the lowest Brightness i lost 1 percent every 10 minutes. now i loose 3% with same brightness level. 3 percent every 10 minutes.
Android OS and Android System are always on top of screen in the battery Graph. i
media is also on top of the screen in the battery graph.
have tried a lot of solutions and factory reset with no luck at all. ( i have placed the device with Airplane mode with no SUCCESS )
installed a lot of battery analyzer apps did not have a clue who's eating all the Juice.....
any idea how to fix this??
Click to expand...
Click to collapse
No wakelocks in BBS?
Install Better Battery Stats. Leave the screen off for 1 hour and tell us what the top Kernel Wakelocks are.
aydc said:
Install Better Battery Stats. Leave the screen off for 1 hour and tell us what the top Kernel Wakelocks are.
Click to expand...
Click to collapse
great, ill update...
I have the same problem, android system is always on top but i can achieve 6 hours of screen.. i will post my wakelocks
Guys,
really it was so big problem to check page 2 and woila :
http://forum.xda-developers.com/showthread.php?t=2609260
Check the problems there, post yours, wait for answer, Samsung is probably monitoring this thread... And
this is not QA section...
is this screen shot Enough??
Or this
Sent from my SM-N9005 using XDA Premium 4 mobile app
SAMERKAD said:
is this screen shot Enough??
Click to expand...
Click to collapse
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.
aydc said:
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.
Click to expand...
Click to collapse
thanksssssss
ill check that for sure... but just to know, can i disable any of these (ril-fd, l2-hsic and wlan_rx) incase they were the problem?
im rooted on Leaked 4.4.2
im losing only 1 to 2 % in idle, way better then JB, but interactive use sucks the soul out of it. rarely pass 30 hours of use.
Im not getting anything
Sent from my SM-N9005 using XDA Premium 4 mobile app
..
Sent from my SM-N9005 using XDA Premium 4 mobile app
I've noticed the first 10 percent (from 100 to 90) go away fast as hell. Use your phone as you would today, just make sure you have enough juice by the end of the day. Leave it as it is overnight and then post your screenshots.. You don't seem to have any wakelocks so your battery shouldn't be draining.. Mine is going like 1% for 8 hours or something, the problem starts when I turn me screen on lol!
I had this problem on my all my Samsung device
the only solution was to take out the battery for a few seconds
worked for me on
note 2 and 3
s4 9505 and 9500
testmonkey1 said:
I've noticed the first 10 percent (from 100 to 90) go away fast as hell. Use your phone as you would today, just make sure you have enough juice by the end of the day. Leave it as it is overnight and then post your screenshots.. You don't seem to have any wakelocks so your battery shouldn't be draining.. Mine is going like 1% for 8 hours or something, the problem starts when I turn me screen on lol!
Click to expand...
Click to collapse
i am loosing more than1.5% per hour where on stand by mode... everything is switched of.f im surprised there is no wakelocks showing... ill wait till the end of the day.
its been 4 hour since last charge and now im on 93%..
im assuming the drain is happening due to the bad reception where i am at.
how do you manage 1% per 8 hours that's Awesome (knock on wood) :laugh: .. is this with WIFI and Data on?
i don't understand ... how come i have no wakelock after screen off.. and my battery draining 1.5 % per hour on stand by mode.... and android Os always on top ?
BBM.
And I haven't done anything special, actually you have to do something to NOT get great battery life while idle. After a factory reset, nothing disabled (so G+, G search and all those wake cycles still present) with WiFi off and Mobile Data ON I lost the usual 1 to 2% per 8 hour sleep. The problem starts for me when I turn on my screen, not when it's turned off
aydc said:
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.
Click to expand...
Click to collapse
What are the causes for wlan rx wake? 12hsic is related to mobile data i guess.
sohebq said:
What are the causes for wlan rx wake? 12hsic is related to mobile data i guess.
Click to expand...
Click to collapse
It's caused by broadcast packets sent by other devices in your network waking the phone up. The solution is to install a custom kernel that filters such packets.

nexus 4 weird battery drain!!!

i changed the phones battery i noticed that it is acting weird. i fully charged the phone and this morning i took the charger out and in 30 minutes without touching it it dropped to 95% and from 7 am until 4 am the battery is now at 26% without even touching it. what happens is when i look at it it says that is still 95 but then when i go to settings/battery then it changed to 26 out of nowhere. i tried putting the old battery but still no go.i tried installing a custom rom and kernel and i even tried 4.2.2 stock and 4.3 stock and even changing radio and i looked online for help but same thing happens. i dont know whether is a battery problem or a software or hardware problem. i really need the phone working and i was wondering if someone had the same problem and also if you used to charge the phone with a wireless charging station because i saw something about using it and then not getting enough power from stock charger. i bought it on ebay and the previous owner had a wireless charging if it helps and he told me a new battery would fix the blinking red light of death. any fixes for this? here is the video of the weird battery problem and it is on airplane mode and safe mode. https://www.youtube.com/watch?v=PlFqagJ2v-k here is another video of how slow the device detects the battery drain https://www.youtube.com/watch?v=Blz68xgQcDU
Install the following app:
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
You can find a free version that works just as great but I personally like this. Charge to 100% then just use it normally. After it drains, open up the app and see what wakelocks there are. You can Google them and it'll tell you what to disable or uninstall from there
Sent from my Nexus 5 using XDA Premium 4 mobile app
I have a problem like yours... during the night my phone drain 10-15% of the battery in airplane mode... i've tried to install stock rom, clean install of cm11, some kernels, UV and UC... nothing works...
Last night i went to sleep with 93%, after 8 hours i had 93% but after 5-6 seconds it dropped to 81%.... no sync, airplane mode, greenify on all apps...
I've also bought a new battery... nothing to do... it can be can hardware problem?
Thanks
Is anything wrong with my battery?CM11 with ak kernel @ 1944 mhz, intellidemand, eco mode on, Wi-Fi on, GPS on, auto brightness on
VikramW8 said:
Is anything wrong with my battery?CM11 with ak kernel @ 1944 mhz, intellidemand, eco mode on, Wi-Fi on, GPS on, auto brightness on
Click to expand...
Click to collapse
First of all kill that 1.9Ghz OC for gods sake....poor phone
Mashed_Potatoes said:
First of all kill that 1.9Ghz OC for gods sake....poor phone
Click to expand...
Click to collapse
Well the graph has started from when the phone was at 1.2Ghz... The battery life just doesn't get worse.. Its the same with 1.2 and 1.9.. Just some minor differences.. There is less heat and low performance on 1.2 and on 1.9 the phone heats up quite a bit but the performance also increases considerable.. But it doesn't seem to affect battery life..
Vikram: Firstly, its bad manners to hijack someone else's thread. You should start your own if you have a question.
It's hard to say if it affects a battery life, because your graph is over the span of two days. One single charge and discharge cycle is sufficient to demonstrate any issues. In any case, it may be unrelated to your overclocked processor, I would install the wake lock detector app and start from there.

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