Develop Bugs

[Q] Battery life - Stock, CM7, Pays

Hi there,
So I'd my Defy for a little over 2 months now and I have used the mentioned ROMs with it for at least a week each. It first had Eclair, I promptly changed that to a Pays version of Froyo and now i'm using Quarx CM7.
A lot of my friends have this phone and report battery life of over 24h. They do work in places where they can connect their phones to their laptops and car charger, and they are lighter users than me.
But I'm a med student so I get out in the morning around 6 am, unplug my phone and go to the hospital returning home around 8pm. 14h later my phone is already at 33% charge. I keep wifi turned off, 3G off and use my phone to check MedScape(a medical info repository) and e-mail/facebook 6 times a day and listen to music for 4h.
Is that a good battery life? i mean, for a new phone. I imagine that if I let my 3G i won't get to the middle of my afternoon without needing to recharge.
Around the forum I read about people with OVER 48h of battery life, HOW?
thanks in advance.
Also, as I know it will be asked. My signal reception is flawless all through my working environment.

The .sbf you flashed (for the kernel) is apparently a big factor in batterylife, which did you use under cm7 ?
Which version of cm7 are you running?
Also are you using setvsel?
My settings are 300/23, 600/33, 800/43, and i have gotten almost 5 days battery use on a single charge, with
-texting for atleast 48hr time, intervals of short(10min) periods as you would expect
-maybe 20 mins phoning
-wifi on for half the time when i forget it overnight etc(my profile disables wifi on screen off however-good for light, but battery drain if you lock phone a lot)
-Get the following: OSmonitor, Battery monitor widget.
These help to track what apps eat battery, and kill processes with minimal(1%) drain, that if you arent using then you may aswell take all the battery back that you can
What are your display settings? eg auto brightness, renderfx etc
Thanks

software
I'm using the latest CM7 by quarx 5.1 and for base i'm currently using 3.4.2-177 nordic Blurless.
I wasn't currently using any undervolting settings to make a baseline screening of the phone with CM7 but i'll try yours and install the apps you've mentioned.
i'm using auto-brightness because of the bugs involved in disabling them in CM7 5.1. And haven't messed with renderfx so far.

Ok firstly i have only tested on 4.0, 4.1 and 5.0 so these suggestions are very likely to work but if certain settings are different in 5.1 then they may negatively affect you- just a thought
Undervolting is actually incredible on cm7 and works a charm, its still super responsive and load times are still less than that of any 2.2 i have tested WITH overclock
Start on about 300/600/800, 30/45/50 and go down marginally-different phones may have different yields to this due to apps running, previous cpu stress etc
(Remember to untick 'start on boot')
Also, the medical database you mentioned- does it contain any 3d renders etc?
This may require you to raise the voltage a little to keep it stable for anything you may to run aswell-- all the apps i have tested such as angry birds, 3d racer games work perfectly btw
Ok, there are extra options that allow you to further change the auto brightness inside the CMsettings under >Display>Automatic backlight
You might wish to experiment if you have time (decrease sensor check-times, lower overall brightness etc), however it likely isnt worth pursuing as the new Quarx beta shows brightness fixes in the changelog already, so just wait is my advice if you are short of time
Ooh and renderfx seemed to drain my battery more on any of the n1 settings, however it may be mix/match to get it right

Hum, I've had bad experiences with undervolting in 2.2 but I'll be sure to try it.
As far as medscape goes, it's just text, no image whatsoever it's just a big list with descriptions "acetaminophen - what does it do, how, dosages and stuff" really useful though
will post back when I have more info from the apps you've mentioned. So far I had used watchdog and it hasn't barked at any of my apps

As long as you take it slowly, undervolting is no problem- also try and minimize the amount of useless apps you have, since many of them run in the background by default without a way to exit them, meaning you constantly waste resources on them and thereby limit the amount of UC/V'ing you could acheive.
Ok thats cool, i was just curious as you clearly need/use that app often
Alrighty then, hopefully you can get some better battery life out of it -good luck

i don't actually have that many apps installed
3g watchdog, only on when 3g is.
angry birds
battery monitor widget
chrome to phone
documents to go
dropbox
evernote
facebook
epicurious
foursquare
gmail
goggles
mnote
msn mercury
music junk
music
pulse
sms backup
soundhound
talk
wifi manager
youtube
well, not that I've written it out, they are quite a few.

He probably means you should use something to kill useless apps running in the background. Look for Advanced Task Killer at the market and install it so you can kill apps that are running in the background but that you're not using.

@Behemia 5 days is awesome in my experience, and you are using your device the same way I am
could you please tell us which kernel are you using (savaged Zen maybe?) and which baseband (if you changed it)?
thanks!

im using cm7 with 3.4.3-11 kernel, undervolted to 300/18-600/30-800/45, kill apps with es task manager quite a lot, 3g or wifi is constantly on, and brightness is set to medium (for some reason auto brightness doesnt relly work for me), and i still cant get one day out of it. battery calibration helped a bit though (i recommend that app to everybody having battery life issues!). is that normal?

Report
So, I've done some of the changes proposed. Undervolted to 300/28 600/41 800/47. Installed Battery monitor Widget, OSmonitor left the phone with 3g off and wifi off when not in use(most of the time) and right now I've got 1% of battery left. That's 1d09h30min after unplug.
Below are the times in ms from the applications that I've used according to battery monitor widgets.
sms 814409
facebook 518805
contacts 355178
dialer 212996
gmail 195103
winamp 67868
medscape 2728
And here battery use report according to system
display 21%
phone idle 18%
stanby 17%
voice calls 15%
OS 7%
media 4%
winamp 4%
gmail 3%
facebook 2%
I'm not saying that 33h isn't good. But my use in this time has been way below my average for myself and the way below most of what I see described here. Plus I don't see any bloatware running nor I do see my apps hogging my battery. Facebook and Gmail push notifications are set to occurs over 2h apart.
Any ideas?
Also, as I finish this thread the phone finally vibrates and dies. Let's put it back to charge and look for more ideas.
thanks in advance everyone.

@lionheartpl
which kind of sim card do you own? i mean an old 64k or a brand new 128k? i upgraded mine from 64 to 128 due to a mobile operator change and my battery usage (same mod, same apps, same usage, same baseband) dropped from 2-3% hour usage to 1% in more than 1 hour. So battery usage has dropped a lot...

Running stock UK 2.1 i could get 4 days standby if i was just texting and a few calls. with the stock UK 2.2 undervolted to 300/22 600/32 1000/52 i can get 5 days easily but i cant see the point in it cos you dare not really use it, i would rather drop down to 1 or 2 days and give it some usage.

Hello everyone,
I'm getting a very good perfomance with the barebones froyo 1.5.6, check this behavior at night:
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That's like 2% loss in almost 8 hours!!!
Right now I am using the version 1.5.1 because I was told it has a better perfomance than the 1.5.6. I'll post my results in a few days.
Also, I use my Defy to be connected to windows messenger network all the time. I'm trying a strategy in order to not drain battery so much:
http://loqueselocomparto.blogspot.com/2011/08/messenger-en-android.html
Check it out

Even i m not getting a good battery life on CM7 RC1 V1, latest Nightly(9th Aug)
using base band switcher as i m from India
i lost around 18 to 20% every night between 12 to 8am.
over with minimum usage i can get 24 hrs thats witout any music and games, call for 30 mins
not sure what to do
some one please help

I can get about 2 days out of a charge. I am using 300/35 700/42 1000/50 and have had no problems. I recommend using battery calibration! A trick that I have learned is to let it charge to 100% do a battery calibration and then leave it plugged in for a while (30 mins). I have my wifi on all the time and run the smartass profile in settings.
good luck!
Chem57guru

Random power drain

Yesterday as I started my day, i pulled my GN from its charger (99%) and made my journey to uni. The trip takes about 50 mins. For the past month now Ive been using poweramp and have had no problems. But when i got to class i realised i had like 25% power during my trip and the back of the GN was a bit warm. I closed all programs and the power drain stopped. I was a bit concerned so a few hours later when i tried playing music again on poweramp but nothing drained the power. So maybe it was a freak occurrence?
So I went to bed last night and the phone was fine. something around 80% power. I woke up 5 hours into my sleep to check on my phone (its a bad habit) and went back to sleep for another 2-3 hours. When i woke up i found my phone had discharged a whole lot of power again randomly in that space of a few hours.
So what the hell happened in that time?! All I did was turn the screen on and turned it off. My usage patterns have not changed.
here is an screen shot of my power usage. You can see the first drop of power, thats nothing of concern as i was playing angry birds space before bed. Then you see the straight line as the phone was idle while i was sleeping. The next drop is when I woke up to check my phone and that's when the discharging happens again. Then you see it recovering when i woke up and closed all the background apps in hope that it would stop the power drain..which it did.
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Anyone have some ideas as to what is causing this?
Also keep in mind that before the first instance of power drain my phone configuration had not changed a single bit besides a light flow lite update the night before.
edit: oh FYI, running stock 4.0.2 on yakju

Any apps that you updated or installed yesterday? New rom? Did you make any changes to your phone at all since yesterday?
Sent from my Galaxy Nexus

Mitchmoney said:
Any apps that you updated or installed yesterday? New rom? Did you make any changes to your phone at all since yesterday?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
No new apps, but some app updates. I know at least light flow was updated.
this random power discharge is really getting annoying. It happened again today.
A new symptom seems that the video doesnt load on the phone. for example, trying to load youtube or recorded videos saved on my phone.
Originally i thought my 3g was playing up but when it wouldnt load a video i recorded that was a bit unusual. in fact the gallery app froze and crashed.

Did you search the forum and install CPU Spy and Better Battery stats?
Get some data and find out what is causing wakelocks. Your phone has a lot of "wake" time.
See with CPU spy how much it is spending in Deep sleep and with Better Battery stats look what is preventing it from going into that state. If it's an app: simply remove it.

How's your signal service been lately? I get pretty stank reception at work so my gnex gets pretty warm at the top and battery life suffers. I just put it on airplane mode and reset the radio to force it to chill out for awhile

Diger36 said:
Did you search the forum and install CPU Spy and Better Battery stats?
Get some data and find out what is causing wakelocks. Your phone has a lot of "wake" time.
See with CPU spy how much it is spending in Deep sleep and with Better Battery stats look what is preventing it from going into that state. If it's an app: simply remove it.
Click to expand...
Click to collapse
Thanks ill try that. Just installed CPU spy. Is there an alternative to better battery stats? Don't really want to fork out something to debug this.
I originally used OS monitor, and i checked what was running while the abnormal discharge was happening but nothing showed up.
You make a good point about the amount of wake time though. That long stretch where i was sleeping, my phone shouldnt be waking up that much should it? It didnt seem to affect battery life that much.

pdiggitydogg said:
How's your signal service been lately? I get pretty stank reception at work so my gnex gets pretty warm at the top and battery life suffers. I just put it on airplane mode and reset the radio to force it to chill out for awhile
Click to expand...
Click to collapse
Reception has been normal (since I'm around the CBD a lot)

csirac said:
Thanks ill try that. Just installed CPU spy. Is there an alternative to better battery stats? Don't really want to fork out something to debug this.
I originally used OS monitor, and i checked what was running while the abnormal discharge was happening but nothing showed up.
You make a good point about the amount of wake time though. That long stretch where i was sleeping, my phone shouldnt be waking up that much should it? It didnt seem to affect battery life that much.
Click to expand...
Click to collapse
Better Battery Stats is the one I use and is recommended here a lot. It gives you insight in the wakelocks from the kernel, as well as from apps. Don't know about the alternatives. It's definately about the wakelocks. Your phone should be in Deep Sleep for 90% or so when you don't touch it (depending on your sync frequency off course).

Diger36 said:
Better Battery Stats is the one I use and is recommended here a lot. It gives you insight in the wakelocks from the kernel, as well as from apps. Don't know about the alternatives. It's definately about the wakelocks. Your phone should be in Deep Sleep for 90% or so when you don't touch it (depending on your sync frequency off course).
Click to expand...
Click to collapse
The only account that is sync'ed is my gmail. The other two listed (twitter and dropbox) is turned off. Are there other options to turn the freq of when the phone syncs?
It's so strange because before these problems came about I had good battery life. ie: 3+hours of screen time.

csirac said:
The only account that is sync'ed is my gmail. The other two listed (twitter and dropbox) is turned off. Are there other options to turn the freq of when the phone syncs?
It's so strange because before these problems came about I had good battery life. ie: 3+hours of screen time.
Click to expand...
Click to collapse
You usually set it at System Settings, accounts & Synchronisation but some apps allow you to set it within the app... There are apps that allow you to make profiles so that, for instance at night, your device turns off all data. I used to use Juicedefender but that was IMHO more a placebo effect then a real improvement.
I definately think you should install the mentioned apps and after such drain re-appeared analyse what happened.

So after a little bit of troubleshooting I narrowed the problem down to Light Flow Lite.
Last night I went to bed with 100% charge. It discharged normally throughout the night until 4 hours in when I received an email. I woke up about an hour later and saw this so i suspected it was light flow. I cleared the notification and went back to sleep. I woke up about 30 mins later and was sad to see that my fears were confirmed. Battery discharge had settled down and was acting as normal. Just to be 100% sure though, i sent an email to myself to set off a notification and left it for another 30 mins, and as you can guess, the battery started draining excessively again.
Here is the screenshot. First part obviously is when im sleeping. then that dip is the email coming in. That TINY TINY dip upwards is another email coming in a min after I cleared the original email. So the battery drain continues until i wake up and clear it again. This time no more notifications came through and the battery drain settles down.
Again keep in mind that I have used Light Flow Light for 2 months now without problems.
Anyone else experience problems with Light flow or Light Flow light since it was updated on the 20th March?

I have been great with my light flow lite..I had a problem with my own battery when I updated Google chrome.. uninstalling that fixed my problem..
Sent from my Galaxy Nexus

[Q] JB, ICS, Battery Life on S5660M

A little background:
I tried playing with some ICS releases last summer, and got to the point where I just could not get everything to work reliably on the phone. I had problems with the phone thinking it was roaming all the time, no camera, or very flaky camera, no gps, screen brightness switching to maximum at random. I eventually went back to the factory rom, unlocked & rooted the phone, got everything working and left it there. I went back to my trusty blackberry bold, and forgot about this whole gio experience.
Recently I decided to try it again with olddroid's cm-10.1-RC1-gio.zip. The experience is great; everything works, camera & GPS too. It seems speedy & smooth. I even put the A2SD app on so I could move apps to the SD card, and roped off half of a 16G SD for an ext4 filesystem to go along with it. I'm not sure I've done that part right, but I'll get back to it later.
In the mean time, the one absolutely show-stopping issue is the battery life. I can take the battery from fully charged to 1% in under two hours! This was never the case with the ICS releases I played with, and certainly not with gingerbread. Yesterday I charged the phone three times over the course of the day, and left it on the charger overnight. This morning, I unplugged the phone, checked e-mail, and in about five minutes, was down to 90% on the battery. Screen brightness is set to the lowest, GPS is off, Bluetooth is on, wifi is on (I don't have a data plan, so this is my only way of getting email & browsing). I have samba installed, but disabled, since I don't need to transfer files that often. I tried putting a battery calibrator on it and following the directions, but that did not change a thing. If I look at the battery stats, the screen is showing as using 99% of the power.
I put the phone away and went back to the blackberry (it goes typically four days (!) between charges).
So, now that I've whined about it, I still like the gio, I really like android as an alternative to a closed architecture (apple/blackberry), and would like to be able to use it. My questions are:
1. Am I doing something wrong with the battery?
2. Is there a better choice for battery life? ICS? A different release of Jelly Bean?
Thanks in advance for any ideas/help.

Hmm, guessing nobody knows? I tried a battery calibrator, but it doesn't seem any better. The instructions were to run the app, and it would delete batterystats.bin. The phone would regenerate this on reboot, so power the phone off, fully charge it, then power it up. I ran the battery down to 4%, ran the app, powered off, waited until the phone indicated 100% charge, unplugged it from the charger and fired it up. It used 4% of the battery just starting. I then set the phone down for four hours, after which the phone was down only about another 15%. A couple of hours later, I picked it up, and it said 62%; used it for 10 minutes checking emails...54%. I'm now looking at a phone that has been unplugged from the charger for 7 hours & 21 minutes, and has 46% left. Is this just normal for a gio running jelly bean? I feel like I need an extra battery, or a bigger one. This one says 1350mAH.

Tried installing no-frills cpu, read up on how it works, set min. freq to 122MHz, max 800, smartassV2 control scheme, sio for i/o control. Still, just over 13 hours, of which I estimate I've used the phone for e-mail & browsing for maybe 45 minutes, down to 19%. When I check the battery stats, it's always the screen & wifi that are listed as villains. The screen usually gets over 95% of the power, even though it's on the dimmest possible setting. Is there something I'm doing wrong with the screen?
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Lastly, the really big drop in the right image corresponded with opening the calendar application. I added one appointment, and nearly lost 10% of the battery. Is there a lot of traffic on wifi during this or something?

Uncle. Is there a good version of cm9 that has camera, gps, bluetooth keyboard support, and won't eat the battery so quickly?
CM10 is nice, but the phone is unusable. I can't have it on the charger 2 to 3 times a day. Yesterday I was treated to a drop from 43% to 18% in 25 minutes of use, & when I check the stats, is always the screen, even when the phone is in standby. The battery is basically new. I even had the cpu speed set to 245MHz, and put the screen on the minimum brightness. I was just reading e-mails, no video, no games, no audio.

Install CPU spy plus and see if deepsleep works.
Sent from my GT-S5660 using xda app-developers app

Tried that, and deep sleep mode is not present on any of the graphs. Do I need to enable it somewhere, like through cwm?

use setcpu and force enable profiles
screen off
min 224
max 320
powersave
100 priority.
some app you use keeps your phone awake and thus it wont go in deep sleep.
Sent from my GT-S5660 using xda app-developers app

setting a min freq. lower than 244 will cause problems. in my case audio lags

I went back to ics, cm9. The camera does not work, and ... and ... and... it's killing me to say it ... but I really like jb. It just has a more polished professional feel about it. Not to dis ics, it's great, but jb is just ... nice. Most importantly, the battery performance I'm getting out of ics is about the same, though the chief consumer of power under ics shows up as "android os." So, I went back to the most recent build of cm10, the nightly from 20130205, as of this writing.
I have tried setcpu, cpu spy plus, and deep sleep battery saver. In ICS at least, I could see that the wifi was shutting down, but the overall battery consumption did not improve. It also killed bluetooth and I had to uninstall the app to get it back.
I do have the no-frills cpu control app installed, and the cpu set to min. 245MHz, max. 800MHz, SmartassV2, sio. Checking the stats, it indicates it's working, but the battery is still coming down fast, and it's always the screen that drinks almost all of the juice.
Is there a way of just editing a config file somewhere to force deep sleep mode to be enabled?
I also think it's not deep sleep that's the problem. If the screen is off 98% of the time, how can it consume 99% of the energy? Is something else happening with the screen? Is the backlight not being properly disabled, or something else left in a state where it drinks up current? This phone does not drain batteries like this when using stock gb rom, so I don't think it's a hardware or battery issue. Could it be the battery that just isn't charging properly and is being misreported?
When I installed the latest nightly build of cm10, the steps I took were:
1. Boot into cwm (5.0.2.6).
2. Wipe data/factory reset.
3. Wipe cache partition.
4. Clear dalvik cache.
5. Clear battery stats.
6. Install zip file from sdcard cm10.1-20130205-UNOFFICIAL-gio.zip
7. Wipe data/factory reset.
8. Wipe cache partition.
9. Clear dalvik cache.
10. Clear battery stats.
11. Power phone off.
12. Pull battery for one minute.
13. Install battery.
14. boot.
Did I miss anything?

zapstrap said:
I went back to ics, cm9. The camera does not work, and ... and ... and... it's killing me to say it ... but I really like jb. It just has a more polished professional feel about it. Not to dis ics, it's great, but jb is just ... nice. Most importantly, the battery performance I'm getting out of ics is about the same, though the chief consumer of power under ics shows up as "android os." So, I went back to the most recent build of cm10, the nightly from 20130205, as of this writing.
I have tried setcpu, cpu spy plus, and deep sleep battery saver. In ICS at least, I could see that the wifi was shutting down, but the overall battery consumption did not improve. It also killed bluetooth and I had to uninstall the app to get it back.
I do have the no-frills cpu control app installed, and the cpu set to min. 245MHz, max. 800MHz, SmartassV2, sio. Checking the stats, it indicates it's working, but the battery is still coming down fast, and it's always the screen that drinks almost all of the juice.
Is there a way of just editing a config file somewhere to force deep sleep mode to be enabled?
I also think it's not deep that's the problem. If the screen is off 98% of the time, how can it consume 99% of the energy? Is something else happening with the screen? Is the backlight not being properly disabled, or something else left in a state where it drinks up current? This phone does not drain batteries like this when using stock gb rom, so I don't think it's a hardware or battery issue. Could it be the battery that just isn't charging properly and is being misreported?
When I installed the latest nightly build of cm10, the steps I took were:
1. Boot into cwm (5.0.2.6).
2. Wipe data/factory reset.
3. Wipe cache partition.
4. Clear dalvik cache.
5. Clear battery stats.
6. Install zip file from sdcard cm10.1-20130205-UNOFFICIAL-gio.zip
7. Wipe data/factory reset.
8. Wipe cache partition.
9. Clear dalvik cache.
10. Clear battery stats.
11. Power phone off.
12. Pull battery for one minute.
13. Install battery.
14. boot.
Did I miss anything?
Click to expand...
Click to collapse
U did not miss any step but sorry to say this every jb rom has this kind of battery consumption. The jb roms eat battery more then gb roms or stock gb
Sent from my GT-S5660 using xda app-developers app

That's a disappointing thing to hear
The thing is though, this sounds a little more extreme. Here's a screenshot from this morning after less than 2 minutes off the charger (showed 100% when it came off):
I'm now sitting at 87%, and it's only been a few minutes. This just can't be normal!

most of the JB rom was draining your batter too fast

GSII T989 battery drains to 7% then slows significantly?

I have 3 new GSII T989 phones on our plan. They work very well, but battery life can be inconsistent.
I have managed to get as much as 5 days out of them, that is with nearly 0 usage and stock apps disabled and all accounts and sync removed.
But I noticed, that regardless of usage, once the battery reaches 7% it starts draining much much slower. Maybe as little as 1% every 5 hours.
It seems clear, that some system processes run draining the battery, but stop at 7%.
With the works drain, the phone could drain to 7% in one day and still stop. I did also notice that the worst drain happens shortly before a OTA update on each phone. The Device Management process is one I cannot disable or even stop does the updating. It does no show up in battery stats.
Can anybody confirm drains from Device Management or other completely locked system apps that might drain until 7%.
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Notice sharp dips in battery life, some better curves, even in airplane mode, it still drained, but at the end starting at 7% the phone hardly drains.
I do see the phone wake a lot, but betterbattery stats does not show signification wakelockes.
GSam Battery monitor is the only program to successfully tell me what is causing a drain.
Here, at the initial drain I looked in Gsam and it showed twlauncher eating 70% of the battery. I cleared the data and force-stopped it it and was happily surprised to find that I now only drained 1% every 3 hours. I notice something that surprised me. When the launcher re-started it fist showed me messages, then contacts than the system manager application with the option do disable diagnostics which I did, but that alone was not the issue since I have not been able to reach such low battery drain even with diagnostics disabled.
I don't know why it awoke so much and drained later as better battery stats did not show any wakelocks over 1 minute (forgot to take a screenshot)
Later on GSam told me that the phone app itself was draining battery, after 1 call and text message, and once I killed it I once again had great battery life at 3 hours per 1% until it started draining again.
Has anybody here noticed or figured out the 7% issue. Is there something in the stock rom that stops at 7%, and is there a way to stop it without a new rom.
I have searched and did not find any references regarding the 7% issue I have with every phone.
Thank you.

elkinm said:
I have 3 new GSII T989 phones on our plan. They work very well, but battery life can be inconsistent.
I have managed to get as much as 5 days out of them, that is with nearly 0 usage and stock apps disabled and all accounts and sync removed.
But I noticed, that regardless of usage, once the battery reaches 7% it starts draining much much slower. Maybe as little as 1% every 5 hours.
It seems clear, that some system processes run draining the battery, but stop at 7%.
With the works drain, the phone could drain to 7% in one day and still stop. I did also notice that the worst drain happens shortly before a OTA update on each phone. The Device Management process is one I cannot disable or even stop does the updating. It does no show up in battery stats.
Can anybody confirm drains from Device Management or other completely locked system apps that might drain until 7%.
View attachment 1843638
View attachment 1843640
Notice sharp dips in battery life, some better curves, even in airplane mode, it still drained, but at the end starting at 7% the phone hardly drains.
I do see the phone wake a lot, but betterbattery stats does not show signification wakelockes.
GSam Battery monitor is the only program to successfully tell me what is causing a drain.
View attachment 1843648
Here, at the initial drain I looked in Gsam and it showed twlauncher eating 70% of the battery. I cleared the data and force-stopped it it and was happily surprised to find that I now only drained 1% every 3 hours. I notice something that surprised me. When the launcher re-started it fist showed me messages, then contacts than the system manager application with the option do disable diagnostics which I did, but that alone was not the issue since I have not been able to reach such low battery drain even with diagnostics disabled.
I don't know why it awoke so much and drained later as better battery stats did not show any wakelocks over 1 minute (forgot to take a screenshot)
Later on GSam told me that the phone app itself was draining battery, after 1 call and text message, and once I killed it I once again had great battery life at 3 hours per 1% until it started draining again.
Has anybody here noticed or figured out the 7% issue. Is there something in the stock rom that stops at 7%, and is there a way to stop it without a new rom.
I have searched and did not find any references regarding the 7% issue I have with every phone.
Thank you.
Click to expand...
Click to collapse
Is this the stock battery or the extended battery?

jrosetto said:
Is this the stock battery or the extended battery?
Click to expand...
Click to collapse
This is with the stock battery. The same behavior is seen or all 3 phones so I don't think the battery itself is at fault.
I would like to root 1, stop the stock apps like Device Manager and see if it helps, but I would prefer not to have to root all the phones.
Thanks again.

elkinm said:
This is with the stock battery. The same behavior is seen or all 3 phones so I don't think the battery itself is at fault.
I would like to root 1 stop the stock apps like Device Manager and see if it helps, but I would prefer not to have to root all the phones.
Thanks again.
Click to expand...
Click to collapse
I am lucky to get a day out of my phone with the stock battery so I would be grateful of anything more. As far as hitting 7% my guess is it sustains that voltage the longest since that is it's end of battery.

I went ahead and rooted the phone.
The first thing I did was use App Quarantine to disable Device Management and many apps that I could not disable before.
Unfortunately, nothing changed and the phone still drains as before until if gets to 7%.
I am still trying, and I think I will need to try a different launcher soon.
I am very open to any suggestion you guys may have.
Thanks.

elkinm said:
I went ahead and rooted the phone.
The first thing I did was use App Quarantine to disable Device Management and many apps that I could not disable before.
Unfortunately, nothing changed and the phone still drains as before until if gets to 7%.
I am still trying, and I think I will need to try a different launcher soon.
I am very open to any suggestion you guys may have.
Thanks.
Click to expand...
Click to collapse
What about installing the Rogers Jellybean update?

[Q] Unusual battery drain on note II

Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.

Take a screen shot of the battery usage and screen time.

That's horrible and nowhere near acceptable. Use GSam/Better battery status to see what's draining your battery. It's highly likely that it's some rogue app doing it for ya. Or else it might be faulty battery too, if that's not the case.

jephindavis said:
Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.
Click to expand...
Click to collapse
To find out,it is better to root ur phone. Then install better battery stats,and see whats draining your battery. You cant install bbs on unrooted phone.

tuxonhtc said:
That's horrible and nowhere near acceptable. Use GSam/Better battery status to see what's draining your battery. It's highly likely that it's some rogue app doing it for ya. Or else it might be faulty battery too, if that's not the case.
Click to expand...
Click to collapse
Do I have to root my note 2 to install those apps?

xartic12 said:
Take a screen shot of the battery usage and screen time.
Click to expand...
Click to collapse
This is not the exact one I was talking about..but still shows my problem
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jephindavis said:
Do I have to root my note 2 to install those apps?
Click to expand...
Click to collapse
I won't recommend GSam at all, just found that it drains my battery itself.
No, BBS doesn't require root for many functions, but still rooting would be even better though.

T.G.A said:
To find out,it is better to root ur phone. Then install better battery stats,and see whats draining your battery. You cant install bbs on unrooted phone.
Click to expand...
Click to collapse
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?

jephindavis said:
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?
Click to expand...
Click to collapse
Chainfire said:
- Follow these instructions to the letter. Do not touch any buttons or checkboxes that are not listed below to touch!
- Unzip the attached Odin3-vX.X.zip file
- Download and unzip the CF-Auto-Root-....zip file (see posts below this one)
- If you end up with a recovery.img and cache.img file, you've extracted twice. You need to end up with a .tar.md5 file - don't extract that one
- (USB) Disconnect your phone from your computer
- Start Odin3-vX.X.exe
- Click the PDA button, and select CF-Auto-Root-....tar.md5
- Put your phone in download mode (turn off phone, then hold VolDown+Home+Power to boot - if it asks you to press a button to continue, press the listed button, or run adb reboot download command)
- (USB) Connect the phone to your computer
- Make sure Repartition is NOT checked
- Click the Start button
- Wait for Android to boot
- Done (if it took you more than 30 seconds, you need practise!)
- NOTE: Sometimes the device does *not* boot into recovery mode and root your device. Just do the entire procedure again if this happens. If it still will not install root and such, make sure that in Odin "Auto Reboot" is not checked. Then after flashing, pull the battery, and boot with VolUp+Home+Power button to boot into recovery manually. This will start the install process.
New to Samsung? Unfamiliar with Odin? Think all the above is a hassle? Get used to it. It's very simple, and us Samsung folk use Odin (or Mobile ODIN ) for everything! It's so very very convenient once you get used to it. Notice the 30 second comment above? For experienced users, the entire process indeed takes only 30 seconds!
You may now optionally want to install and run Triangle Away to reset the flash counter.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=32708472&postcount=2
Here you go. Yours is N7100 right?

jephindavis said:
I was planning to root my device but couldn't find a good tutorial site that would help me do it. Can you suggest me one?
Click to expand...
Click to collapse
I did the above said tutorial too. I dint do anything else like triangle away as it is needed if i am claiming warranty from samsung. After rooting,check if you are rooted or not by installed root only applications like titanium backup.

battery drain
Hi guys I have a very unusual problem. My note 2 is already rooted within a week after I brought it. I have tried different roms n never changed my modem. It’s DLK7 from the beginning. And also I have tired different kernels but still I have the same problem.
Sorry let me come to the issue.
That’s my battery drains very quick if I am not connected to internet. Wearied isn’t it. I know. If I am connected to internet by data or wifi from night to till morning I have only 3% to 5% drain (screen is off coz me n my note 2 is sleeping). If I am not connected to internet the drain is about 40% to 50, 60% some times more.
When I checked I noticed that play store or some times facebook massager is using the battery this much. Once when I was in a very busy situation my note 2 is getting hot near the rear camera and my battery is draining very fast.
I googled it but I didn’t get a proper answer.
I think when I am not connected to internet facebook massager or play store is trying to sync with the internet with out realizing that there is no internet. It is causing the cpu over use and not letting the phone to go to sleep.
Can any one help in this matter?
The only way I have found is to set a task killer kills this apps repeatedly or stop them from syncing. Both will reduce the battery drain but it will make this apps useless.
Please help…………………….

There's really no need to let it drain down to < 20% before charging. If anything, that would be causing more harm than doing shallow charge/discharge cycles.
Source:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

Use the app greenify, and apply it to Facebook. Play store shouldn't be causing this, but clear its data to be sure.
If this doesn't help, you should install better battery stats, to further diagnose any wakelocks that might be causing this.
Sent from my GT-N7100 using Tapatalk 2

As for me, that's that sh%$§y new version of google Maps that drains my battery, up to 25% in a complete cycle are now drained by GMaps when I absolutly don't use it...

i900frenchaddict said:
As for me, that's that sh%$§y new version of google Maps that drains my battery, up to 25% in a complete cycle are now drained by GMaps when I absolutly don't use it...
Click to expand...
Click to collapse
If you don't use an app, disable it from settings---->applications. Apps like Google music tend to autostart and slow the device and reduce the juice

Hi guys
Now I am using moon rom v10 n same time I updated my modem to latest DMG1 which comes with the rom and it seems that my problem is solved. Still under testing but yesterday I switch of all my internet and I have only 3-4% drain I don’t see any problem as I said still under testing. I will come back with more results.
As i900frenchaddict said I have noticed the new map is showed in the battery usage screen and it show 21% of usage but it didn’t drain from my battery but it’s there and I checked to force close it but it’s already stopped, but again it’s there showing its using 20-35% usage from yesterday.
Don’t know what’s going on. I hope its jest showing their n not draining my battery.
I hope this will help others.
Press thank if this helped anyone.

Unusual battery drain solved
Hi guys thank you for your support. Yesterday also I have tested n only 2% drain after 9.30 hours. For checking I disconnected all the internet and switched one play store and facebook massager. And checked.
Only 2% drain so my battery draining problem is solved.
My devise details if it will help someone.
Device: N7100
Rom: Moon rom V10
Baseband: DMG1
Kernel: Adam – 2.7
Android version: 4.1.2
Please press thanks if this helped.

54NJ41 said:
As i900frenchaddict said I have noticed the new map is showed in the battery usage screen and it show 21% of usage but it didn’t drain from my battery but it’s there and I checked to force close it but it’s already stopped, but again it’s there showing its using 20-35% usage from yesterday.
Don’t know what’s going on. I hope its jest showing their n not draining my battery.
I hope this will help others.
Press thank if this helped anyone.
Click to expand...
Click to collapse
To remove this unusual Google Map usage since last update, I realized that freezing it using Titanium Backup (and reboot) was not enough, the app kept on being displayed at a good place in my battery usage. But freezing it + non allowing Google's localization services stopped the problem.
Just I regularly use Maps, so now each time I have to re-eanble localization service, then use Titanium to unfreeze it.....

jephindavis said:
Hi everyone! My note 2 battery is driving me insane. I have been using my note 2 for like 2 months. And I had been following the recharging cycle where you only charge the battery when it reaches 5% or less and remove from socket when it reaches 100%. This method has been working real well for me. I used to get really good battery life. I would recharge it to 100 and remove from socket and keep it there. I might only start working with it after 2 hrs of idle time a nd the battery percentage would be like 98 which is pretty normal. But two days back when I had to go out I found my battery level at 24 % and since I had no other choice I had to recharge it for 10 mins. That's when the problem started. After coming back home the battery had pretty decent juice left in it and I left it idle. After an hour or two when I checked the phone it had already switched off. I was in shock and tried to switch it on but it didn't work. So I thought of charging it to 100. After almost 3 hrs it was fully charged but since I don't work on my phone so late in the night, I removed it from socket, switched it on and left it there idle. And when I woke up after 5 hrs it had only 69% juice left in my battery. I checked my running apps and there were none. I had my data connection stopped. And still only 69? Thats kinda weird right? Is it because I recharged it before getting to 5 %. Is there a way I can remove the battery cycle cache or something. Please help.
Click to expand...
Click to collapse
Hey Bro, I used to have that problem. but NOW my phone usually lasts from 5 to 7 days. i use Deep Sleep Battery Saver get it from the play store.
download it, install it, open it, and you'll find options like ''Slumberer or custom whatever i forgot" So what u have to do is check Slumberer.
Click Thanks if i helped
---------- Post added at 11:35 AM ---------- Previous post was at 11:09 AM ----------
jacob_stallone1 said:
Hey Bro, I used to have that problem. but NOW my phone usually lasts from 5 to 7 days. i use Deep Sleep Battery Saver get it from the play store.
download it, install it, open it, and you'll find options like ''Slumberer or custom whatever i forgot" So what u have to do is check Slumberer.
Click Thanks if i helped
Click to expand...
Click to collapse
And yeah almost forgot, Also Disable Unused Apps That come with the phone, like dropbox, g+,samsung apps, samsung backup...etc

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