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[Question]Display drains Battery after flashing XXJPK for days

Hi experts here,
I am new i9000 user coming from G2.
I flashed XXJPK for days, found that my battery drops very fast.
I stop all data access at night and the battery still drops...
I found that the 'Display' uses > 80% !! (even when I slept for 8 hours)
Attached is the screen cap of my battery stats..
Do anyone has the same issue?

This is Android Development, not Questions & Answers! Please post in the right sections!

What have you installed after JPK? Task killer? Lag fix?
Mine is not doing that. I did a hard-reset yesterday, installed my apps (no task killer, no root, no lag fix) and disabled everything (WiFi, bluetooth, GPS, 3G, autosync). Battery did not drop even 1% in 6 hours.
Display should not take any battery if it's off. Maybe you have something that awakes the phone constantly. Check autorefresh on weather, e-mail, twitter, news feeds... I usally have that disabled or set to 8 hours minimum.

got the same problem here.. i do got the docrom (custom rom) ,auto killer installed and lagfix (OCLF v2+) it goes from 100% to about 60% in 9 houres.. without doing a thing.. on top of that i got juicedefender ultimate installed.. but it doesnt seem to help at all..

The problem is why the 'Display' uses > 80% while I off the screen for hours?

Got the same problem here. I just reverted back to jm8 (eclair 2.1) with takayuma Rom.. I think all froyo versions have battery draining issue

I think, you guys must make this and maybe fix battery issue:
Refreshing battery stats after Odin or flashing (important)
or me personal, for my Galaxy very helpfull was this HTC Desire methode:
[HOW TO] Calibrate Desire Battery
Regards

I'm having exactly same problem with you. My brightness is 75% even in sleep mode and it drains the battery. I guess thats the main culprit to solve my battery draining issue. I wonder why it happens to certain people, because some users only have 48% for brightness and their battery can last more than a day
** apparently using Eclair 2.1 doesn't solve the issue as my brightness is still 70% ... I've tried the batterystats.bin fix and same thing happens. Damn !

pcboyy said:
I'm having exactly same problem with you. My brightness is 75% even in sleep mode and it drains the battery. I guess thats the main culprit to solve my battery draining issue. I wonder why it happens to certain people, because some users only have 48% for brightness and their battery can last more than a day
** apparently using Eclair 2.1 doesn't solve the issue as my brightness is still 70% ... I've tried the batterystats.bin fix and same thing happens. Damn !
Click to expand...
Click to collapse
It's true. JM8 and the battery fix doesn't help.
But I found that when I turn my connection from 3G mode to Wifi mode, my battery drops only 10% overnight.
I think there is some problem in the 3G connection.
Do you think this is kernel related?

One way to keep the drain down is getting a black theme such as the Transparent theme and setting a black background. Because of the AMOLED screen black is basically 'pixel off'. It helps just a bit.
I have similar experiences with WiFi vs. 3G, 3G drains battery awfully fast whereas WiFi seems to be consuming significantly less power.

Battery drain!!!

Has anyone had any issue with the battery draining out rapidly overnight when the phone is in idle without any apps running. My battery remains around 75% before I go to sleep but the next day morning it drops to below 30%........am confused :S

saahmed said:
Has anyone had any issue with the battery draining out rapidly overnight when the phone is in idle without any apps running. My battery remains around 75% before I go to sleep but the next day morning it drops to below 30%........am confused :S
Click to expand...
Click to collapse
Maybe you were really running apps, or some of them started updating.
You really need to check up on your phone activity.
Ask us any Android Related Question @FeraLabsDevs on Twitter

saahmed said:
Has anyone had any issue with the battery draining out rapidly overnight when the phone is in idle without any apps running. My battery remains around 75% before I go to sleep but the next day morning it drops to below 30%........am confused :S
Click to expand...
Click to collapse
It's not possible without any logical reason, and this one can only be an app running in idle wich can't even go CPU to sleep.
It's pretty simple to search for the issue, just need an app such as "CPU Spy" who can help you to find WHAT is draining your battery.
Before do it, I advice you to test it without charger (evident ) let us know
Sent from my Galaxy Note with DarkyROM 3.3

Your phone is not getting into deep sleep. There might be some apps giving wakelocks or kernel wakelocks. Install better battery stats and cpu spy from market and identify the culprit!
Hit thanks if it helped :-D
BOOMED from my BOMBASTIC NOTE :-D

Sleep less -- more battery

probably it is because of the samsung push service. froze it with titanium back up or uninstall it.

Battery Drains during Standby Mode

Does anybody experience a 3% to 5% battery drain just a few minutes after charging the battery to 100%? It has already reached 100% so I already unplugged it from the charger, but then I noticed after a few minutes, it went down to 97% already, and then in 10 minutes, it's already down to 96%. In 3 hours, it's down to 84%; in 7 hours, it's down to 38% and that's just on standby mode with Wifi/Bluetooth OFF, 3G OFF, GSM only. I've been experiencing this problem for the past few days now. I've already conditioned my battery, charging it to a full charge (100%) after draining the battery until it shuts the phone off. I only charge the battery while the phone is off and usually it takes about 3 to 4 hours maximum to charge it to 100%.
The longest time it reached was 12 hours (battery unplugged from charger) and that is with light use, such as Wifi is only on for a couple of hours, so basically just 2 hours web browsing and skype, 10-20 text messages and 30 minutes to 1 hour browsing the photo gallery or watching videos. No phone calls and 3G is off. The rest of the day, the phone is just on standby mode. I only have at most 10 widgets on the home screen. I have Avast Antivirus running in the background.
I am currently using Easy Battery Saver, Easy Task Killer, GO Task Manager and Battery Monitor Widget. I've uninstalled Juice Defender since I don't think it helps that much when it comes to the battery drain. Currently, the power saving option (available on Note) is enabled at 50%.
Wifi and Bluetooth: OFF when not used
Use Packet Data and Data Roaming: OFF
Network Mode: GSM Only
Auto Sync: OFF
Auto Brightness (Display): OFF and scale is at the most left
Animation (Display): No Animations Shown
Screen Timeout: 30 seconds
Use Wireless Networks/GPS Satellites: OFF
Power Saving: ON at 50%
STOCK ROM (not rooted)
Android OS: 2.3.6
Baseband Version: N7000XXLA4
Kernel Version: 2.6.35.7-N7000XXLA6-CL907341
[email protected] #2
Build Number: GINGERBREAD.XXLA6
Any feedback or comment on this matter would be really much appreciated. Thanks!

From a personal standpoint. Your screenshots shows that your phone had never ever done a deep sleep at all. the 'Awake' mode is continously consistent as well. I guess the probable reason for that is you've installed ''Avast AV" on your phone. It's always running in the background (whenever the phone is ON). From my experiences, Any background application running would always cause wakelocks and the phone would never enter into deep sleep at all.
How bout you try uninstalling some of the background apps your using esp. Avast AV and give it a day to observe if your still having that battery drain issue. (Don't forget after uninstalling or removing those apps, try to wipe dalvik cache and battery stat and restart your phone after.)
and Oh by the way, I am using Juice Defender and contrary to your saying it doesn't help.. IT DOES HELP save battery as I my Note is able to reach 1.5- 2 days of normal use.
Cheers!

Yeah and download betterbatterystats and do some searching on it. With it you can discover what is causing those wakelocks. Search the web for more info on your wakelocks.
Sent from my GT-N7000 using Tapatalk 2

I'm using avast and never seen a drain like that. Only time I have is because of background processing. First thing I would do is turn off Background Data
Then as others have said - check batterystats to see where wakelocks are
Plus a rooted phone is a good thing. Titanium backup allowed me to freeze wi-fi sharing which also made a big difference
Finally - clear all caches from Applications menu and reboot

letters_to_cleo said:
From a personal standpoint. Your screenshots shows that your phone had never ever done a deep sleep at all. the 'Awake' mode is continously consistent as well.
Cheers!
Click to expand...
Click to collapse
Only picture that shows that is the one with 1 minute 56 sec discharging time, so it was taken shortly after taking charger out. No suprise of it being almost 100% screen on time there if its only 2 minutes

Also installing "cpu spy" will give the cumulative time that your cpu spent at each frequency including deep sleep , mine is showing 88%
John.

Anti virus app is battery hog, I had avast before too, and I uninstalled it after 2 days using. Also that Juice defender, from my test before, it use up more battery than it saved. turning on and off those 3G/Wifi thing is using up alot of battery. and you know what? even the betterbatterystats use up alot, at least to me, becoz it scan what is up frequently.

Hello! Thank you all so much for your response. I've installed both BetterBatteryStats and CPU Spy and here are the results (please see attachments). Upon checking CPU Spy, it shows there that phone did went to deep sleep, maybe? I'm not quite sure, but it shows on the screenshot that it went to deep sleep for 19%. So does that mean the phone really went to sleep?? I'm sorry to ask this question, since I've never really encountered this problem before with my previous Samsung Wave phone, how will you know that your phone went straight to deep sleep mode?
Also, after 46 minutes or so, the battery went down to 96% already after charging it. The battery drain was already 4% in less than an hour.
@letters_to_cleo: I have not uninstalled Avast yet, since I'm still hesitant to use my phone without an AV. But I will try your suggestion for 1 day and see if there's any battery improvement.
I'm looking forward to your response or suggestions. Thanks again!

i am having problem too with new battery original samsung ( made in japan, finished in korea) previously i use samsung battery made in china, finished in korea. charged it over night with power off. it only last 13hrs. my wife phone can last 30hrs.
i've used batterymix to check the battery usage graph, the usage graph drop very fast compare to my wife phone. i'll post some screen capture of the graphs.
another issue is i used once wifi sharing. after turning switching the wifi sharing off, the wifi sharing service always at the background even after many reboot. how to turn that off??

You might need a new battery. Any rechargeable battery has a finite charging cycle. Just a suggestion.

Hi, all! I just noticed that the battery drains still even during deep sleep mode. After 3 hours or so (during sleep mode according to CPU Spy), the battery went down to 92%. It drains even faster when the phone is in use, especially when Wifi and Bluetooth are on, maybe 2-5% drain in 1 hour.
Maybe there's something wrong with the battery?? It's still a new battery and I can see some improvement each day though, but that's because I use it less each day. Before the battery can only last for 8-10 hours, then it increased to 12 hours, and then to 16-17 hours. BetterBatteryStats' current estimate to empty is 24 hours as of today, but that's because I only used the phone today for only a couple of hours, with 20 minutes Wifi and Bluetooth ON and most of the time, it's on deep sleep mode according to CPU Spy.
What do I do with the results from the Partial Wakelocks? Do I have to disable those apps?? The Kernel Wakelocks didn't show any reference apps running. The screenshots for the Partial and Kernel Wakelocks that were taken a few hours earlier still show the same results after 3 hours.

tknguyencsu said:
You might need a new battery. Any rechargeable battery has a finite charging cycle. Just a suggestion.
Click to expand...
Click to collapse
That would be really bad luck. I got my Note via preorder in Germany at the first day it was sold and since then I charged it everyday, sometimes even twice and there is no difference to the first day. If I get told by Samsung after 6month of normal usage the battery is dead that would be the last Samsung device I bought and I use a lot of Samsung stuff.
@ebichan24
Your last screenshots show between 9:35 and 13:35 5% of battery drain. That's not really a good value but ways lower than before. Did you delete some Apps or what did you change?
And since when occurred this issue? Did you install new Apps before this happened?
On my Note I had this issue sometimes without any changes but it was gone after a reboot.
Gesendet von meinem ARCHOS 101G9 mit Tapatalk 2

Agreed with Kanalcommander.... try a reboot in the first instance.
Others have also noted that it takes a few refresh cycles before the phone more accurately reports battery use. Perhaps what you are reporting is because the phone and battery are new (new ROM or Kernel loaded?)
What I have done in the past is to reboot into CWM recovery then clear the battery stats (in the Advanced menu option) Recharge the battery to 100% until it says to remove charger and then use normally until battery down to around 20%, then recharge the battery to 100% again. Do this over a few days and that may help.

thanks, it is new battery two days old.

ahhl said:
thanks, it is new battery two days old.
Click to expand...
Click to collapse
I was having similar problems with my new note and finishing full charge in 12 hrs but fixed some things and my last charge gave me 2d6hr seriously..few things i did were stop using live wallpapers! Get badass battery to thoroughly monitor stats and then use zdbox to extend life even much eg. I put phone to auto flymode using that app when its sleeping time rest i am more than satisfied even if on GB LC1 fw..waiting for official premium suite for ics since i recently upgraded from sgs2 using ics i miss that smoothness and much better bat life.. Let me know if can be helpful.. Good luck
Sent from my GT-N7000 using XDA

@TempusFudgeIt
That's what I'm currently doing right now, well, actually, what I do is I discharge the battery until it reaches 0% and turns the phone off. And then I charge the phone for 3 hours while it's switched off, I turn it back on again to check if the battery is fully charged and then I unplug it from the charger.
@Kanalcommander
**Did you delete some Apps or what did you change?
I haven't deleted any apps yet since I don't know which app/s to delete. Most of the apps I downloaded in Note were the same apps that I used in my iPhone4 and Samsung phone before.
**And since when occurred this issue?
This issue occurred since the first day I bought the phone, which was a couple of weeks ago. How long does it take to condition a new battery and new phone?? I'm sorry if I have to ask this question, it's just because I never really experienced this problem with my previous smartphones.
**Did you install new Apps before this happened? On my Note I had this issue sometimes without any changes but it was gone after a reboot.
I only installed recently CPU Spy and BetterBatteryStats and that's it. The drain of 5% from 9:35 to 13:35, the phone's just on deep sleep mode. And then from 13:35 to 23:44, it went from 92% to 74% while the phone is on deep sleep mode at 90% according to CPU Spy. That's 18% battery drain. It's just an unacceptable number for me. I tried rebooting the phone already, but every time I do so, just a few minutes after I turned the phone ON, there's already a 1% drain in the battery.
Also, does the battery really drain faster when the Wifi is ON? I've read in other threads that there might be some problem with the recent OS update that Samsung needs to address. Is this true?? Because as you can see on the screenshot below, the battery was still at 74% by 23:44 and then after I turned ON the Wifi and used it until 01:26, the battery went down to 54%. That's already a 20% battery drain in just less than 2 hours. I was only browsing through the Android Store and Skype.

Calibrate your battery in case you flashed any roms and for first usage I got my battery to 0% 3 times then everything is running great for example its at 47% now its 22 now and I have had it off charge since 7 morning..... i have wifi gps and 3g always on and use music player bluetooth and made some calls
Sent from my GT-N7000 using XDA

My battery (also only a week old) drains quickly too. Can anyone tell me if widgets draw a lot of current? And then is it only the ones on the visible screen or do all widgets draw juice all the time?

I will ask such thing, did you guys check the battery expiration day ? Mostly sibce you got your phone almost a yeae after it was announced you nay get a bad battery, as for widgets the ones that are always active and asking for informatiom. Like location or weather over the internet yes they do eat your battery kinda fast.
Sent from my GT-N7000 using XDA

Recurring battery drain? - Caused by memory of using app to drain battery?
Hello!
I used a battery drain app when charge left was 30% to accelerate drain to "die out" stage. After I completed the calibration process for unrooted phone as suggested in various sites (charge fully, switch off and charge etc.) I started using it from a 100% stage.
This afternoon when the battery showed 30% I saw in BMW the current flow was in -10ma to -15ma and it started spiking to hundreds. There was no change in settings or usage. From the 30% level it dropped to 10% in an hour and I had to charge again.
Was puzzled why the battery which was dropping around 0.5%/hour in standby earlier to the 30% level suddenly went down hill. My first guess was it was possible some file in the system remembered the previous usage history and replayed it out.
Any suggestions? Anyone faced this before? Everyone says LiOn batteries dont have memory so if anything it has to be the phone.
Thanks!

[Q] ICS is not going into deep sleep after 6 hours Screen shots attached

After switching into flight mode - reboot (took out the battery ) - switch back from flight mode. Note was going into deep sleep.
But whenever i used the phone or played little game, battery was depleting around 1% in 5 min.
Now suddenly after 6 hours of use again ICS is not going into deep sleep.
I have attached screen shots of cpuspy and betterbatterystats.
Please let me know if anybody can find something in screenshots.
ICS is really getting irritating. I am always looking cpuspy and battery stats from past couple of days instead of enjoying my Note.
Also please let me know how to go back to GB os. I dont think ics having any major changes against GB from a normal user perspective. GB was lot stable.
Note: Never rooted.

If now it goes to 200 MHz and not to deep sleep when screen is off, some app must be keeping the phone awake. I'm running LPY with 37 apps installed, and used a few of them for days. Phone keeps going into deep sleep when unplugged and screen is off:
Speed is limited to 1200 MHz by power saver setting
200 MHz time is mostly while charging

I'm having the same problem. Some days it goes into deepsleep other days it doesn't. The day it doesn't, my battery drains 50% faster.

try task killer app and reduce ur screen light minimum possible and switch off wifi,bluetooth,gps wen not in use...
else every thing fail out try rooting with custom rom like KingDroid ICS ROM v2.0 its osum...!!! all d best dude...!!!

I also have this problem. I don't use my phone very often, so the screen is not draining as much power, but sometimes I get the phone to use 5mah in battery widget, but most of the time it just hovers 35mah or above.
I would really like to be able to get the one digit number when the phone is idle. I am still on Gingerbread but I would like to know if there is a way to solve the high Android battery usage?
I keep Wifi/3g on 100% of the time, as I did on my previous device running Android (HD2) and when the screen was off the device would only consume 4-5mah of battery.

[Q] What is your battery consumption when in Standby/Screen off?

Hi all
I tried to cut battery consumption down as much as possible while phone is in standby/deep sleep.
I now manage a drain of around 1%/h (BetterBatteryStats actually reports 0.9% per hour).
This is with Wifi on, everything else turned off. I have my CPU undervolted by -100mV and am using perseus kernel with RipperRom, Radio is currently LL3. The signal coverrage in my area is good (3-4 bars).
What is your drain when the phone is not in use? Best way to check is to fully charge and unplug the phone before going to bed and leave it alone until the morning. You can either calculate amount of battery drained per hour yourself or just use BBS.
Please also mention your configuration (Rom, Kernel, Radio, Undervolting, what Antennas were active during standby and how your reception is)

mine's about the same, 0.8 - 0.9%/h on a good night. CPU undervolting won't help much as the phone hsould be in deep sleep most of the time (CPU UV is only active when the phone is not in deep sleep). my wifi is on 100%, i have a bunch of push accounts, a few pull. using ripper, perseus, default telstra modem, good reception

Not rooted, but overnight mine tends to drop around 5-8%, this is with everything off. I had the HTC Sensation prior to this phone and that practically lost no battery life when on stand-by! So am a little surprised it drops quite a few % from stand-by mode.

yeah that's pretty bad, I would get BetterBatteryStats and work out what's chewing up your battery. I'm pretty sure you don't need Root unless you want to look at the network or process stuff..

I'm using Ripper ROM V8, Latest perseus kernel and LL5 Modem.
I got 3% drain overnight (9.5hours) with wifi and data off.
Sent from my GT-I9305 using xda app-developers app

c.r.e.a.m.36 said:
Not rooted, but overnight mine tends to drop around 5-8%, this is with everything off. I had the HTC Sensation prior to this phone and that practically lost no battery life when on stand-by! So am a little surprised it drops quite a few % from stand-by mode.
Click to expand...
Click to collapse
It might be that location reporting is turned on. You should check if google maps has "Report from this device" activated. If so, it will constantly wake you device and report your location to who knows where. I have turned it off and my battery life has vastly improved
However, 5-8% in a time span of around 8h seems normal. You will only achieve less if u switch off wifi and data