Huge Battery Drain Issues - Galaxy Note II Q&A, Help & Troubleshooting

I've had battery issues ever since I bought my Note 2. I tried buying a new battery, custom ROM (ARHD 13.0), custom kernel (RedPill). I get a drain of 2% per hour in standby, and 17.2 percent (!) per hour in normal usage, not even heavy gaming. The screenshots are for continuous usage. I got rid of wakelocks, the AudioOut2 one by Viber, the NetworkStatusMonitor through maps. (these were 80% of all partial wakelocks)
I usually have sync enabled, 4 email accounts for once in four hours, and Facebook, and Samsung backup. That's it. I'm on an EDGE network, with network set to GSM only, WiFi only on when required.
I have ~83% Deep Sleep when I don't touch the phone overnight.
All motions/smart *s are disabled.
I don't know what else to do. My wakelocks show completely normal values. (I'll upload some when I get to unused time)
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Oops. Attached the same pic twice.
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Almost 90% sleep. But still draining 10% in 10 hours of no use.
Could someone help me debug this drain?
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If you are complaining about 10% drain over 10 hours (1% drain an hour) then you are very mistaken about how a mobile phone works.
There's nothing wrong here I can see.

I've seen people report less than 3% drain overnight. And 2-3% per hour of use. 17% an hour? Too much.
Edit: I know cell phones consume battery because they're wirelessly connected to and monitoring networks and that they need battery to receive and process packets of data and other stuff while not being used, if that's what you mean.
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0 over 6 hours so he is correct
this is XXXDDDAAA

Is your wifi power save mode on or off?

!!
I have the same excact problem. Just bought it and the battery drains so faaaaaaaaast !!!...

The screenshots in my first and second posts are with WiFi on, connected but never searching. In the third post, WiFi was off the whole time.
Edit: Power saving was off both times. There's a noticeable FPS drop with power saving that I hate.
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refik.adjini` said:
I have the same excact problem. Just bought it and the battery drains so faaaaaaaaast !!!...
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Click to collapse
Please get Better Battery Stats, and post your screenshots over at least an hour of no use, and 30 minutes of use. I might be able to help. (I'll try, anyway).
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UtkarshGupta said:
0 over 6 hours so he is correct
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Are you on an AOSP/AOKP/CM based ROM? I understand that battery will be significantly better on those than a Sammy based ROM because of Sammy bloatware, but I'm unwilling to lose all the perks. Although the figures I said people have are all for people on either stock with custom kernel, ARHD, or ARHD with a custom kernel.
Edit: I also took care to take these figures from this forum from people who had a few syncs/online services enabled.
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No Wanam.
this is XXXDDDAAA

Install perseis kernel...dont try to install cheap apps or games from playstore...beacause they run even after closing it in the background...try to deactivate your 3g network and wlan ...btw.. try tge app 3g manager...it deactivates your 3g mobile network when you lock the phone.. and reactivate it when you unlock the phone..it might help you.
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I think 1% per hour is normal because the use to monitor the network
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mijohnsmith said:
I think 1% per hour is normal because the use to monitor the network
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Click to collapse
Not anymore. Perseus kernel with Greenifier = 0.3% drain an hour, and 5% per hour of use.
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Related

Abnormal battery drain ?

This is using the extended battery I got today.... seems steep, no?
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From my experience the phone lasts about 3-4 hours screen on time
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Wow..u must have been using it non-stop. Yes, from my experience, the total screen up-time is around 3.5 hours.
Here is my overnight battery drain test. My phone was idle the whole time. Only on 2G mode and no wifi, no gps and no bluetooth.
Try uninstalling Facebook for Android app and also Sign into Latitude, select Do Not Report My Location, and then sign out of Latitude.

Cyanogen Mod 7.2 RC3 Battery Drain

I know this has probably been answered somewhere before but I couldn't find a good answer. I have lost 10% battery in an hour and a half with no use other than stand by. Any tweaks within the Cyanogen settings I can make to help at all?
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Did you add any kind of task killer on your phone to prevent things from running in the background all the time?
I have advanced task killer but its just an app. Its not running all the time.
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And I let my battery drain all the way to 0 and charged fully from scratch with it off. It lost about 20 in an hour add opposed to 10 today.
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ZachRoberts_ said:
I have advanced task killer but its just an app. Its not running all the time.
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Click to collapse
You can set it to auto-kill. I'm actually kinda surprised you're having a lot of battery problems with RC3 though, you may just need to wait a few days for everything to stable out. When we get new ROMs we like to play with them a lot and drain the battery! I would also suggest using auto-brightness to prevent excessive screen power usage.
ZachRoberts_ said:
And I let my battery drain all the way to 0 and charged fully from scratch with it off. It lost about 20 in an hour add opposed to 10 today.
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Click to collapse
That's not normal for idle at all. Is the battery old and just wearing out? if it's fairly fresh (< 1 year) then it should be fine. Try betterbattery stats to see if the phone is keeping wakelocks and also CPU spy will let you know if your phone is reaching the deep sleep state.
I have the brightness not on auto because it was picking up the light right, but it's turned down pretty low. I'm about to post the results of the battery info, and those 2 apps... They're in the below zip folder...
I unplugged my phone about a half hour ago and have been using it a decent amount. Went from 100 to 80 in that time.
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the first ~10-20% is not always that accurate.
I don't know that drain just kills me lol.
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Today was 11 % in 5 minutes. This I'd crazy.
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[Q] Battery life? WTF? 10% an hour doing NOTHING ?

I lose 10% an hour (sometimes more) doing absolutely nothing with my phone. I check battery stats and like 98% is screen.
Question: how can that be possible if the screen isn't even on ?
I have tried everything. I'm running CM10 stable (which is supposed to be good for battery life)
10% an hour? This is a joke right? I have like no apps running. I even tried using apps that put the phone into DEEPSLEEP as soon as the phone/screen shuts off -- meaning every app is closed.
Nothing.
Any ideas? please help i love this phone but im going through 2 batteries a day and im not even using the phone that much.
Do calibration for the battery it works for me
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kingjing1975 said:
Do calibration for the battery it works for me
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how ??
Download battery calibration on google play and follow the instructions.
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Battery life-Kernel-Screen on

Sooo i want to ask u guys what is your battery life on note 2 especially i want to know the screen time on and the kernel used and other tweaks u used like scheduler and governor/
On mine i want to say that i got like 5 hours screen on saber kernel(41.3_7100) .
5 hours and 30 minutes more or less on adam kernel.
king118 said:
Sooo i want to ask u guys what is your battery life on note 2 especially i want to know the screen time on and the kernel used and other tweaks u used like scheduler and governor/
On mine i want to say that i got like 5 hours screen on saber kernel(41.3_7100) .
5 hours and 30 minutes more or less on adam kernel.
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Click to collapse
Sorry but those threads are meaningless to my opinion. Battery life / screentime depends on personal config of the device as well as usage patterns. Therefore results are not comparable. I can easily pimp screentime up to 7 hours or more when reducing brightness to min and displaying mostly dark or black screen. So you never know how stats are generated.
Btw. Your 5 hours are perfect, if you achieved them by normal usage.
Just my 2 Cents
I kinda agree. It depends what you are doing with the phone when the screen is on. I normally play asphalt 8 on max brightness so my on screen time is not as high as some that you see.
But where I think comparison is worthy is with screen off time. I'm currently getting Drain of 1% per hour.
This is with the new saber kernel which I think is a big improvement on the old and id suggest you try it op
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3vo3d said:
I kinda agree. It depends what you are doing with the phone when the screen is on. I normally play asphalt 8 on max brightness so my on screen time is not as high as some that you see.
But where I think comparison is worthy is with screen off time. I'm currently getting Drain of 1% per hour.
This is with the new saber kernel which I think is a big improvement on the old and id suggest you try it op
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Click to collapse
You're right. Battery drainage while screen is off shows how well your device goes into deep sleep mode.I usually have more than 1% per hour since wifi eats a lot more energy. I have turned wifi psm off for stability reasons.However I'm using Deep Sleep Battery Saver App and therefore I'm now able to achieve similar results.
sweetsmoke69 said:
You're right. Battery drainage while screen is off shows how well your device goes into deep sleep mode.I usually have more than 1% per hour since wifi eats a lot more energy. I have turned wifi psm off for stability reasons.However I'm using Deep Sleep Battery Saver App and therefore I'm now able to achieve similar results.
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Wifi eats more energy than what?
fade2black101 said:
Wifi eats more energy than what?
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Wrong wording. Just wanted to say Wifi consumes a lot energy.
Fair doos
sweetsmoke69 said:
You're right. Battery drainage while screen is off shows how well your device goes into deep sleep mode.I usually have more than 1% per hour since wifi eats a lot more energy. I have turned wifi psm off for stability reasons.However I'm using Deep Sleep Battery Saver App and therefore I'm now able to achieve similar results.
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Click to collapse
I leave my wifi on all the time but have the network notification turned off. That seems to help for me?
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3vo3d said:
I leave my wifi on all the time but have the network notification turned off. That seems to help for me?
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Click to collapse
Thanks I'll give it a try.
sweetsmoke69 said:
Thanks I'll give it a try.
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Click to collapse
Let us know if that's any good for you also
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sweetsmoke69 said:
Wrong wording. Just wanted to say Wifi consumes a lot energy.
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Im on hsdpa+ all the time. I get an average of 16 hours and at least 4 hours of screen on time with a lot of zombie tsunami and fifa14 game time.
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Justinhopaolo said:
Im on hsdpa+ all the time. I get an average of 16 hours and at least 4 hours of screen on time with a lot of zombie tsunami and fifa14 game time.
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Click to collapse
You mean Wifi turned of all the time?
I'd probably do the same if I had a unlimited high speed rate for my mobile.
I'm using the devil kernel and it's pretty much impressive.
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Yep no wifi. Only 3g all day
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My record is 8h 36mins, but normally from 100 to 15 screen lasts for 5-6h which I find pretty good
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re:
Minerael said:
My record is 8h 36mins, but normally from 100 to 15 screen lasts for 5-6h which I find pretty good
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7h 17 min on battery
screen 49%
android system 14%
android os 11%
media server 10%
youtube 5%
facebook 3%
samsung apps 2%
thunderstorm 2%
system UI 2%
cell standby 2%
screen 49% time on 5h 18 min
battery left 24%
Note: wi-fi on ...fb on, yahoo messenger, skype, viber, yaaic + youtube
Brightness auto.
Note 2 GT-N7100 stock 4.1.2 rooted
Phoenix v13 with perseus 3.0.36, no uc or uv

This id my battery states of I9192 is it normal?

This is screen shots
While idle and all connectivity off except SMS & phone calls I lose 1.7%/h is this normal?
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I'd say yes. As I can see from your Screenshots you were two times disconnected from any cellular network. Remember this causes more battery usage (but no drain at all), because the phone is searching for network consistently.
Both, the 1.7/h as well as your screens are totally okay.
But I read some where that I can bring down usafe to less than 1 %
I have disabled all samsung apps and use silvui kernel
I have note 2014 unrooted and battery loss per hour is far less
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That's right search forum for threads with this topic. You said this battery usage appears at idle state. The second screen isn't idle at all because you are using your device (but you have no wake locks which is pretty good btw). I'm sure you reach less than 1%/h when you don't use your device. You can also install better battery stats to monitor what's using energy and freeze it.
Did you also activated energy saving? Try this in addition to offline mode and check with BBS the over night consumption. I'm pretty sure it's below 1.
Last night battery dropped from 43% to 35% in 3 hours while I was sleeping thats too much ... 3g wifi bt off
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Were the many Apps in multitasking? Try clearing RAM, reboot and all energy saving techniques.
Try to post idle stats
sent from my i9192 with CM11 by sekil
Idle Iowa between 1.4%/h to 1.8%/h I think this is too much
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Install better battery stats or wakelock detector
Then charge your phone at full clean all ram and leave it untouched while you sleep and post your stats right when you start using your phone
sent from my i9192 with CM11 by sekil
Idid that and it loses between 1.4 to 1.7 but if used this become 2.7/h idle
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Tell us what consumes battery most. Do you run your phone with two SIMs?
I think is the radio and cpu
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we cant help much without battery stats or wakelocks
try silvuimik or ametris kernel those are greate also change your governor
Same Here
Ya i'm facing the same problem. I'll get back with my stats.
Getting 0.8%/hr battery loss with cm11 by sekil on f4k 1.5.0 kernel. single sim switched on with GSM data. Happy with it :fingers-crossed:

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