Better battery life for Android system? - Galaxy S III Q&A, (US Carriers)

I've seen a lot of users' postings of battery statistics (screen shots) and they are all considerably better than what I am getting. The biggest difference I see is in the amount of battery drain from "Android System." What I see posted is between 9% and 13%. However, my batt stats show the Android System draining 60% of the battery.
So, what am I doing wrong? I'm still kind of new to Android. Is it the widgets? I've checked running processes verses what apps are draining battery life and nothing is running that drains like the system does.
Further info: I am currently running the 7.18.12 build of Diet ICS, but I was seeing this behavior on stock as well. Some widgets I use: Astrid premium tasks widget, Evernote, doubletwist, slacker, 3D clock/weather, a widgetsoid switcher, and APW Calendar.
Thanks for any help or suggestions.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

How much screen on time over how long and what kind of use?
60% is high but there's known bugs in android OS reporting.
I'm asking because you we're saying your new. It takes a lot of power to power this 4.8 screen
Sent from my SGH-T999 using xda premium

natefish said:
I've seen a lot of users' postings of battery statistics (screen shots) and they are all considerably better than what I am getting. The biggest difference I see is in the amount of battery drain from "Android System." What I see posted is between 9% and 13%. However, my batt stats show the Android System draining 60% of the battery.
So, what am I doing wrong? I'm still kind of new to Android. Is it the widgets? I've checked running processes verses what apps are draining battery life and nothing is running that drains like the system does.
Further info: I am currently running the 7.18.12 build of Diet ICS, but I was seeing this behavior on stock as well. Some widgets I use: Astrid premium tasks widget, Evernote, doubletwist, slacker, 3D clock/weather, a widgetsoid switcher, and APW Calendar.
Thanks for any help or suggestions.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
How often do your widgets that gather info refresh? Try scaling down on some widgets and see if that helps. If not, try to flash stock with odin and start over. I was having some problems with my phone when I first got it (MTP specifically) and I falshed stock and everything started working fine. Also, if you are using Google Chrome, make sure you have the experimental feature of using the gyroscope for tilt scrolling set to off....it is known to drain battery.
Hope this helps :good:

KappaG9 said:
How often do your widgets that gather info refresh? Try scaling down on some widgets and see if that helps. If not, try to flash stock with odin and start over. I was having some problems with my phone when I first got it (MTP specifically) and I falshed stock and everything started working fine. Also, if you are using Google Chrome, make sure you have the experimental feature of using the gyroscope for tilt scrolling set to off....it is known to drain battery.
Hope this helps :good:
Click to expand...
Click to collapse
Maybe I will try flashing stock if I have time today. I reset my battery stats in recovery mode when I took the phone off the charger this morning, so we'll see how today goes.
I looked into the widgets and the only one that refreshes data on a schedule is the clock/weather. I'll try a different one or just not use the weather.
Great tip about Chrome. Didn't know it did that.
Do I actually need to calibrate the battery? I tried the method of letting it die and charge back up a few times and I've tried recharging once it gets down between 70-80 percents life. I'm not sure which method helped, but I did notice an improvement.
Thanks again for the help.
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mike216 said:
How much screen on time over how long and what kind of use?
60% is high but there's known bugs in android OS reporting.
I'm asking because you we're saying your new. It takes a lot of power to power this 4.8 screen
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Not sure how to know how long the screen was on. Is there a way to know that? If I had to guess I'd say 4 hours. I use the Smart Stay option as well. I wonder if wiping the stats will give me more valid data.
Thank you for the help.
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natefish said:
Not sure how to know how long the screen was on. Is there a way to know that? If I had to guess I'd say 4 hours. I use the Smart Stay option as well. I wonder if wiping the stats will give me more valid data.
Thank you for the help.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
settings>battery>click on the gray use bar & you can see screen on time.

It is because you are running touchjizz. Cm and aokp are the best :highfive:
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I have my display off auto-brightness and on a low setting, I probably utilize the task manager 50x a day and clear the ram as well, cpu sleeper is always activated, gps/sync/auto-rotate/wifi/bluetooth is always off unless I need them, and I have power saving mode on most of the time.
With all these settings off and I am a heavy texter/caller/browser/emailer, my battery lasts from 7AM-1AM and I am at 30-40% at the end of the day!
Sent from my SCH-I535 using xda app-developers app

StNtMaN said:
I have my display off auto-brightness and on a low setting, I probably utilize the task manager 50x a day and clear the ram as well, cpu sleeper is always activated, gps/sync/auto-rotate/wifi/bluetooth is always off unless I need them, and I have power saving mode on most of the time.
With all these settings off and I am a heavy texter/caller/browser/emailer, my battery lasts from 7AM-1AM and I am at 30-40% at the end of the day!
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Great advice. Thanks. What do you use for "cpu sleeper"?
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StNtMaN said:
I have my display off auto-brightness and on a low setting, I probably utilize the task manager 50x a day and clear the ram as well, cpu sleeper is always activated, gps/sync/auto-rotate/wifi/bluetooth is always off unless I need them, and I have power saving mode on most of the time.
With all these settings off and I am a heavy texter/caller/browser/emailer, my battery lasts from 7AM-1AM and I am at 30-40% at the end of the day!
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Never mind! Just searched" CPU sleeper" on the Play store and--voila!
On another note, I'm so glad I got a device with a huge support community. Coming from iOS, it's nice to feel part of a collective effort again and get such great advice. I know there are a lot of iOS forums and there is some great work done through those communities, but those seem so trivial compared to what is done through XDA and the level of helpfulness is unparalleled here.
natefish said:
Great advice. Thanks. What do you use for "cpu sleeper"?
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Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

natefish said:
Do I actually need to calibrate the battery? I tried the method of letting it die and charge back up a few times and I've tried recharging once it gets down between 70-80 percents life. I'm not sure which method helped, but I did notice an improvement.
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I read somewhere in the forum that these batteries actually like to be constantly charged up and not let die completely. There was no explanation for this but I will research it because I am curious. With my old Captivate, i let it die then fully charge to extend the overall life of the battery.
How is your battery so far?

KappaG9 said:
I read somewhere in the forum that these batteries actually like to be constantly charged up and not let die completely. There was no explanation for this but I will research it because I am curious. With my old Captivate, i let it die then fully charge to extend the overall life of the battery.
How is your battery so far?
Click to expand...
Click to collapse
I've applied all the tricks folks have shared here and have flashed the Diet ICS rom. I am going to take screen shots of my usage data on a daily basis and see how things fair. I'll post my results here. Here is one from last night before really getting into all the tricks and the new rom. So, maybe this is my "before" shot in this documentary of a noob's journey to better battery life.
End subspace transmission from NCC-1701E

natefish said:
I've seen a lot of users' postings of battery statistics (screen shots) and they are all considerably better than what I am getting. The biggest difference I see is in the amount of battery drain from "Android System." What I see posted is between 9% and 13%. However, my batt stats show the Android System draining 60% of the battery.
So, what am I doing wrong? I'm still kind of new to Android. Is it the widgets? I've checked running processes verses what apps are draining battery life and nothing is running that drains like the system does.
Further info: I am currently running the 7.18.12 build of Diet ICS, but I was seeing this behavior on stock as well. Some widgets I use: Astrid premium tasks widget, Evernote, doubletwist, slacker, 3D clock/weather, a widgetsoid switcher, and APW Calendar.
Thanks for any help or suggestions.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Have you tried using the CPU Sleeper app?
http://forum.xda-developers.com/showthread.php?t=1745516
I found that it does a great job of preserving battery life when the phone is in standby. I used to notice my battery draining really fast over short periods on standby (phone would be hot to the touch). After installing this, I have not encountered that problem again. I get 16-20 hours of use on moderate usage. LTE, gps, and sync are always enabled. I DO NOT have the phone in power saving mode and I seldom use wifi. I used to get 10-12 hours of battery life on the same usage before. I am running the rooted version of the stock rom from my carrier.

CPU sleeper app works great for me. I am in a non LTE area but get incredible battery life, last all day usually with around 50% left. An order of magnitude better than my SGS2

jauwad.arshad said:
Have you tried using the CPU Sleeper app?
http://forum.xda-developers.com/showthread.php?t=1745516
I found that it does a great job of preserving battery life when the phone is in standby. I used to notice my battery draining really fast over short periods on standby (phone would be hot to the touch). After installing this, I have not encountered that problem again. I get 16-20 hours of use on moderate usage. LTE, gps, and sync are always enabled. I DO NOT have the phone in power saving mode and I seldom use wifi. I used to get 10-12 hours of battery life on the same usage before. I am running the rooted version of the stock rom from my carrier.
Click to expand...
Click to collapse
debk said:
CPU sleeper app works great for me. I am in a non LTE area but get incredible battery life, last all day usually with around 50% left. An order of magnitude better than my SGS2
Click to expand...
Click to collapse
I am using CPU Sleeper now, thanks to the advice of a previous poster on page 1. Good to hear it works for others.
I had the SGS2 as well and the S3 is definitely better.

7/20
7/20
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7/21
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7/22
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Hi all,
I also notice this and this were the steps that I did and seems to help me to reduce this process to like 5 %. I'm on Sprint S3 but should be the same for the all carriers.
Go ahead and open Talk application. You should see your account in green (I'm not using this application) then hit the menu and then select sigh Off. Make sure that your account changes to Offline (sometimes it is change back it self so open one more time make sure that it says Offline). Then what else I change is in wi-fi advanced options: under Keep Wi-Fi on during sleep I choose Only when plugged in option. then I reboot the phone and from now on (almost 2 days) my Android system process show up only 5% of usage and my battery life improve significantly. I hope this will helps.
Thanks

Those are great tips. Thanks. I will say I've gotten increasingly better life since employing other tips discussed here.
Something else I did was download a profile changing app. I got Quick Profiles, but anything should do. If anyone uses anything better, please share. I have a profile for power saving that turns down my brightness, and turns off wifi and Bluetooth. The app will let you put shortcuts on the home screen to instantly change the profile. I'd like to find one, however, that will also turn off gps and mobile data.

Related

[Q] So, is this typical battery life?

Stock battery
I have done everything from Autostarts to managing my processes constantly. I played hanging with friends, got on here, and texted.
I posted an updated battery usage. I have lowest brightness, lowest image brightness, 15s timeout, etc.
i would probably switch to conservative governor vs powersave
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
jc830 said:
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
Click to expand...
Click to collapse
Dang that is high! Are you sure about that? :O At medium usage /w unnamed i only get about 18 hours total. It was similar with ICScrewed too
Holy crap. I'll look into better apps. Could UnNamed be the culprit? Or the kernel?
Should I buy a new battery? The life waslike this for the few days I was stock, I think
I average around 17hr, on a good day I'll get 20h. I also recommend better battery stats, great app to see what's keeping your device from going to deep sleep.
Another great app is lbe privacy guard, you can deny certain apps and games some of the permissions they want (disabling GPS on those that really don't need it etc).
I'm on unnamed so that isn't the issue. Might be the kernel, just check the kernel wake clock in better battery stats to check. I'm on entropy's latest dd, while i do feel i got better battery life on the kernel with the latest unnamed ROM I'm not to sure if it's the kernel or something else.
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glad4pie said:
Dang that is high! Are you sure about that? :O At medium usage /w unnamed i only get about 18 hours total. It was similar with ICScrewed too
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Click to collapse
Well, I guess it depends on how you define heavy and moderate... Haha
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jc830 said:
Well, I guess it depends on how you define heavy and moderate... Haha
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Click to collapse
I'd be curious to see your graph. My battery is dead now, but tomorrow I'm going to get on and upload Better Battery Stats to my phone. I would've paid for it on the Market, but I couldn't find it when I searched. I'm curious to see what other people think. I switched all Powersaves to Conservative. Is OnDemand bad for my CPU as it constantly trips from 500MHz to 1.2GHz? Should I consider going to 1GHz?
jc830 said:
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
Click to expand...
Click to collapse
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
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mattdm said:
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
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Click to collapse
I agree. This is my latest battery cycle of what I consider "moderate" use
What I'd consider light usage (about 10 minutes of voice, between 5-10 minutes of cellular data, 10-15 texts, and about 20 minutes of total screen-on time) I get about 35 hours.
I have managed to almost completely drain my battery in about 4 hours though... Thanks Game Dev Story!
mattdm said:
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
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Click to collapse
I will make sure to post up my graph when it does drain
I think my definition of heavy usage is moderate use for most people..
Here's the link to bbs http://forum.xda-developers.com/showthread.php?t=1179809
I realized I forgot to turn off data when I'm not using it, but I installed better battery stats and I didn't really see any wake locks. Should I try a different kernel? Any opinions on an efficient one? NOTE: I already got the yellow triangle for using the Odin way, so I'm fine with doing whatever to this phone.
I added my better battery stats shots. I guess today would be called a very light to light day.
wrathofnero said:
I realized I forgot to turn off data when I'm not using it, but I installed better battery stats and I didn't really see any wake locks. Should I try a different kernel? Any opinions on an efficient one? NOTE: I already got the yellow triangle for using the Odin way, so I'm fine with doing whatever to this phone.
I added my better battery stats shots. I guess today would be called a very light to light day.
Click to expand...
Click to collapse
I see two very top wake locks have kept your phone from sleeping for an hour..
That is a significant amount.
Also, use cpuspy to see how hard it's been working.
I would try to get rid of those top two wake locks...
Oh crap! I didn't see them until you brought it to my attention. That explains some of the idle drain. I'll look into CPU Spy. You guys have been so helpful!
Your kernel wakelocks had no data, probably due to BBS being a fresh install. A full charge should set a proper reference point.
jc830 said:
I see two very top wake locks have kept your phone from sleeping for an hour..
That is a significant amount.
Also, use cpuspy to see how hard it's been working.
I would try to get rid of those top two wake locks...
Click to expand...
Click to collapse
I don't think anything can be done about system logging as far as I have found.
promiseofcake said:
I don't think anything can be done about system logging as far as I have found.
Click to expand...
Click to collapse
If something's holding that many log wakelocks, something might be spamming a log somewhere.
I can't find anything to help with those two either. Or would seem that the keyguard might have something to do with text messages, but I can't see anything that would spam the log. Where might I be able to read this log?
Also, I'll post my CPU spy stats toward the end of the night. It's looking like it spends most of its time at 500MHz.
@wrathofnero You can remove the triangle with a usb jig. Worked for me.
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[Q] Battery Saving Apps?

I was hoping some of you guys could recommend some decent battery saving apps for me? Right now i'm using "easy battery saver" which is alright but not really gettin the job I need done, done. Thanks in advance
-C
Never use them. I set screen off profiles with set cpu and probably get 30% more battery. Battery saver apps run in background hence still using battery.
Sent from my HTC Mecha using XDA App
donnyp1 said:
Never use them. I set screen off profiles with set cpu and probably get 30% more battery. Battery saver apps run in background hence still using battery.
Sent from my HTC Mecha using XDA App
Click to expand...
Click to collapse
Good point lol thanks for the advice!
Anytime bro, happy flashin an hit the thanks!
Sent from my HTC Mecha using XDA App
The only one I have ever used is battery calibration......
Sent from my ADR6400L using xda premium
Been using Juice Defender. Was a bit touchy for a while, but has been pretty solid for roughly the last 6mo... The extra features you get with the "Ultimate" paid key are IMO, worth the few bucks, but you should give the free version a try first just to see if it helps. (Everyone has different use-patterns and JD can't help everyone's phone the same amount).
I also use SetCpu. I crank the upper speed down to about 768mhz and only rarely do I miss the extra zip, but it adds several hours to my battery...
Sent from my ADR6400L using Tapatalk
Battery Calibration is all I've ever used. The apps like Juice Defender are gimmicks now, they stopped being a feasible way to save battery after the same caching and app killing schemes were put directly into android. If anything battery saving apps kill your battery life now.
rayjd1650 said:
Battery Calibration is all I've ever used. The apps like Juice Defender are gimmicks now, they stopped being a feasible way to save battery after the same caching and app killing schemes were put directly into android. If anything battery saving apps kill your battery life now.
Click to expand...
Click to collapse
Juice Defender has nothing to do with "caching and app killing". You might want to take a better look at what it really does before you start making pronouncements...
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I use Set CPU profiles and JuiceDefender. Spend the time setting up JuiceDefender for your needs. I easily go 2 full days without plugging in.
Jolest said:
Juice Defender has nothing to do with "caching and app killing".
Click to expand...
Click to collapse
:good:
Most of what JD does is to turn off the mobile data or WiFi radios when the screen is off. It turns them back on at regular intervals to sync apps. It does a ton of other things too, but caching and app killing are not among those features.
It also uses VERY little CPU. You can see this if you take a look at the CPU usage stats by process.

I get always too much battery drain during night

i like to keep my gs3 connected to wifi and muted while i'm sleeping but when i wake up i always get 8-10% battery drain (in 8 hours app), i come from a motorola atrix which in the same conditions i get no more than 2% drain over night.
i've tried many roms (omega, foxhound, ultimarom...), many kernels (stock, galaxsih, siyah, phenomenal medium and extreme...), and also some basebands (modem, radio) but i keep sticking with the XXLH1 'cause i get less drain with this one. but in any combination i always get 8-10% battery drain during night.
i've seen some of you say that you get 2-4% drain in the same context so i would like to know what am i doing wrong :/
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im using the leaked stock 4.1.2 there now, and i had 3% drain in 11hrs between overnight and not using it this am.
seems v good for battery life so far. i know your pain though. its non usage time i want to be high batterylife. id expect 2-3 days from the phone when not playing games etc... im hoping this is gonna fix that now. most reports are good about battery so heres hoping.
in a few days will know more
How is it sleeping overnight? check settings > battery and check how much it's awake when the screen is off, then check better battery stats to see what is waking it up, I would probably say you have too much synced.
you're right, i have too much synced, 3 google accounts, plus facebook, twitter, whatsapp, skype and others but those are the same settings i had on my old motorola atrix and even there i got 1-2% drain, although i was on gingerbread.
i will install some battery stats application to see in details whats draining it so much, 'cause under settings it only says that idle and standby time are the draining reasons.
gonna try the leaked 4.1.2 to see if i get better results, thanks!.
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gnrsenpai said:
you're right, i have too much synced, 3 google accounts, plus facebook, twitter, whatsapp, skype and others but those are the same settings i had on my old motorola atrix and even there i got 1-2% drain, although i was on gingerbread.
i will install some battery stats application to see in details whats draining it so much, 'cause under settings it only says that idle and standby time are the draining reasons.
gonna try the leaked 4.1.2 to see if i get better results, thanks!.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Better battery stats is the best, but that is a lot to sync, I would imagine it's not sleeping well because whenever an app decides to sync it will wake the phone up, and let's not forget the S3 has a 1.4GHz quad core CPU, if it wakes and uses all cores it will drain the battery faster than a single or dual core CPU. I notice the Atrix has a 1GHz dual core, so you should expect a lot more drain especially with that much synced, honestly you shouldn't need Skype syncing unless you always want your skype contacts to be up to date in the contacts app, and Twitter just syncs to pull the latest tweets through, you can just do that manually every time you open the app.
Before 4.1.1 I got 9 hours 99% overnight no 3g or Internet, now it's 90%
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Poker gypsy said:
Before 4.1.1 I got 9 hours 99% overnight no 3g or Internet, now it's 90%
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Click to collapse
does that mean that jelly bean is making you experience worse battery life?.
maybe it's because the atrix has 2 cores but if the gs3 uses all 4 cores to fetch or sync some data, that would mean it's not very well optimized for simple tasks, thanks anyway i'll try better battery stats
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gnrsenpai said:
does that mean that jelly bean is making you experience worse battery life?.
maybe it's because the atrix has 2 cores but if the gs3 uses all 4 cores to fetch or sync some data, that would mean it's not very well optimized for simple tasks, thanks anyway i'll try better battery stats
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Click to expand...
Click to collapse
Android doesn't fully support multi-core CPUs yet, which is the main problem, all you can try if you need all the apps syncing is download a custom kernel and change the CPU governor this will change how the system uses the CPU and it can help.
Well for starters, Google Now should be disabled if you are concerned about battery life. Also check for and disable latitude and location reported from maps (they are getting activated by google now) Even if data/sync/gps are off google now constantly polling for updates thus draining battery.
With my HD2 running GB/Froyo for over 2 years, and methodical testing to achieve the lowest battery drain in standby (testing for 8hrs at night) the best I could do in AP mode was .35% per hour which is less than 3% over 8hrs.
I have owned and tested my S3 for 4 months and usually get 1% per hr and in AP mode....I get similar to the HD2 above at .35% per hour but I haven't tested to crazily.
I find it hard to believe and would love to be convinced, that any S3 owner can get less than 3% per hour drain without going into AP mode. Please prove me wrong and state your methods for all to learn.
Finally, I do not find the battery drain to be Linear. I am guessing that a battery charged to 100% sometimes may actually be a bit stronger than 100%. So doing a random single test may result in low drain numbers but that may be misleading. That same test performed at 20% level, may yield worse results if in fact my theory that the battery does not drain linearly...is true. But for consistency, I always perform the test at 100% battery and let it sit in the charger for an extra 2hrs before unplugging it. This way, at least the test is more consistent and more directly comparable.
I now have Green Power app installed and it is able to automatically turn off wifi/data in standby under conditions set by me, the user. I am performing some nightly drain tests. I would be thrilled if I could get between .35-.75% per hour. My first 2 nightly tests failed thanks to Slacker Radio....which held a Wakelock even though I bloody killed it!
I think this could be due to fast dormacy
http://www.androidnz.net/2012/06/at-your-own-risk-how-to-disable-fast.html?m=1 there is an app to disable this.
Read this link first though
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A bit off topic but just reminds me of my old Nokia N95 because whenever I was in a network dead spot or just have no signal for whatever reason (Gif fgaff) the battery would completely run dry within maybe 6 hours, and you'd think because it has no signal it should last longer than the few days standby I normally got.
And I've never had a SIM in any of my Android phones that lost service for long so has anyone seen this happen on an Android or is it just a Symbian thing?
Geordie Lad said:
A bit off topic but just reminds me of my old Nokia N95 because whenever I was in a network dead spot or just have no signal for whatever reason (Gif fgaff) the battery would completely run dry within maybe 6 hours, and you'd think because it has no signal it should last longer than the few days standby I normally got.
And I've never had a SIM in any of my Android phones that lost service for long so has anyone seen this happen on an Android or is it just a Symbian thing?
Click to expand...
Click to collapse
When a phone has no signal it has to scan all frequencies for a signal, this constant switching of frequencies drains a lot of battery, it also increases the power to the mobile networks chip to try to pick up even a weak signal, which also drains the battery faster, it happens on all phones.
kenyard said:
im using the leaked stock 4.1.2 there now, and i had 3% drain in 11hrs between overnight and not using it this am.
seems v good for battery life so far. i know your pain though. its non usage time i want to be high batterylife. id expect 2-3 days from the phone when not playing games etc... im hoping this is gonna fix that now. most reports are good about battery so heres hoping.
in a few days will know more
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Could you please share your settings to get these results.
Thanks.
chippyuk said:
Could you please share your settings to get these results.
Thanks.
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Click to collapse
It's the new 4.1.2 xxelk4 firmware
Sent from my GT-I9300 using xda premium
Samsungnooby said:
It's the new 4.1.2 xxelk4 firmware
Sent from my GT-I9300 using xda premium
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Which I am running but 3% over 11 hours?
Any e-mail accouunts? What do you have enabled/disabled? What is syncing?
The best I have ever managed was about 1%per hour and that was with everything off apart from the cell.
chippyuk said:
Which I am running but 3% over 11 hours?
Any e-mail accouunts? What do you have enabled/disabled? What is syncing?
The best I have ever managed was about 1%per hour and that was with everything off apart from the cell.
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Click to collapse
Read the link I posted above about fast dormacy and if this is your problem then get the app fast dormacy from play store
If you're worried about wifi while sleeping also have sync turned off and location in settings and disable notifications from play store and disable notifications from apps also
Sent from my GT-I9300 using xda premium
Samsungnooby said:
Read the link I posted above about fast dormacy and if this is your problem then get the app fast dormacy from play store
If you're worried about wifi while sleeping also have sync turned off and location in settings and disable notifications from play store and disable notifications from apps also
Sent from my GT-I9300 using xda premium
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Will give it a try but I have never seen it show up in BBS in the past hence never tried it (I was aware of it) and as far as I am aware O2 (UK) does support Fast Dormancy.
It is not that I an dubious about the 3% drop over 11 hours I just want to get to the same level!
EDIT: To get the 3% drop do you disable everything you mention above? I use Tasker to disable everything including sync, wifi etc...except the cell. But I do not disable play store notifications seperately.
chippyuk said:
Which I am running but 3% over 11 hours?
Any e-mail accouunts? What do you have enabled/disabled? What is syncing?
The best I have ever managed was about 1%per hour and that was with everything off apart from the cell.
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Click to collapse
This is what I have come to expect. 1% per hour is reasonable and typical. 3% over 11hrs...hmmm...I don't believe it.
Samsungnooby said:
Read the link I posted above about fast dormacy and if this is your problem then get the app fast dormacy from play store
If you're worried about wifi while sleeping also have sync turned off and location in settings and disable notifications from play store and disable notifications from apps also
Sent from my GT-I9300 using xda premium
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Click to collapse
I have messed with this before without positive results. But anyway, since it seems like you have it working...what is your typical % drain over 8hrs?
themadproducer said:
This is what I have come to expect. 1% per hour is reasonable and typical. 3% over 11hrs...hmmm...I don't believe it.
I have messed with this before without positive results. But anyway, since it seems like you have it working...what is your typical % drain over 8hrs?
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Click to collapse
I usually turn mine off overnight but if I do want it left on I turn my location settings off and everything that requires wifi and don't lose much.
I'd suggest trying better battery stats from play store then after leaving your phone off overnight dump your results (in settings) and then go here http://forum.xda-developers.com/showthread.php?t=1179809 to ask about your results
Sent from my GT-I9300 using xda premium

Anybody tell me why my battery loss is so high?

In 2 hours, I have lost 29% battery life. I'm pretty sure this can't be normal, especially with 1+hours of Deep Sleep.
http://www.mediafire.com/view/?2panq9fohk2atfe here is the "Better Battery Stats" for those 2 hours.
Thanks for any info
If it matters, I'm running CarbonRom.
pivotraze said:
In 2 hours, I have lost 29% battery life. I'm pretty sure this can't be normal, especially with 1+hours of Deep Sleep.
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Click to collapse
If you were to post this over at the BBS thread, they would tell you a few things right off the bat:
1. the facebook app is a battery killer. I'd start by freezing it (if you need facebook functionality there are more battery friendly apps for it)
2. Looks like you are doing a lot of syncing. turn it all off.
3. Enable root features in bbs since you're rooted (lets you get more info that may become relevant).
4. You need more idle time. plug in and unplug your phone to create an unplugged reference, then leave it be for a few hours.
The AudioOut_2 wakelock is an interesting one, especially since it's high on your list. In my case it showed up when I tried poweramp and it seemed to be related to the auto-start-when-headphones-plugged-in option, so if you use poweramp check that option. Others seem to get it from viber. If you have that, remove or freeze it.
So, give the above a try, and check a new dump. This will probably give you more stuff to look into. If you find a problematic app you can then determine whether it can be fixed by changing its settings, greenified, disabling its autostarts, or if you just need to avoid it.
pivotraze said:
In 2 hours, I have lost 29% battery life. I'm pretty sure this can't be normal, especially with 1+hours of Deep Sleep.
http://www.mediafire.com/view/?2panq9fohk2atfe here is the "Better Battery Stats" for those 2 hours.
Thanks for any info
If it matters, I'm running CarbonRom.
Click to expand...
Click to collapse
From what I see you have had no, or only one bar of signal? If so, you may want to use Airplane Mode. You can use Airplane mode and still use Wi-Fi.
Have you been around Wi-Fi? If you aren't around Wi-Fi, turn it off.
NFC. Is it on? Do you use it? If not.. Turn off.
If your battery level shows inconsistency, you might want to calibrate your battery.
I hope i helped, im not quite sure why you loose 11% every hour, while mostly in deep sleep. Go to performance control and use some tweaks for your kernel.
Tyler44346 said:
From what I see you have had no, or only one bar of signal? If so, you may want to use Airplane Mode. You can use Airplane mode and still use Wi-Fi.
Have you been around Wi-Fi? If you aren't around Wi-Fi, turn it off.
NFC. Is it on? Do you use it? If not.. Turn off.
If your battery level shows inconsistency, you might want to calibrate your battery.
I hope i helped, im not quite sure why you loose 11% every hour, while mostly in deep sleep. Go to performance control and use some tweaks for your kernel.
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Click to collapse
The low signal shouldn't have any affect on the battery of the G, when I was on aosp I used houcha's kernel an I got great battery life around 23 hours with 5 hours of screen on and was at 22%, with set CPU profiles engaged and no kernel tweaks from any app. And I live in an area that primarily has 0-2 bars of service at home and full lte when I work I leave everything on, all radios and data sync. Now that being said for some reason the development is moving towards synergies kernel, and it doesn't have nearly the battery life that houcha's gets
CPU profiles included: https://www.box.com/s/toj5p6qclr1adf69ttfl
Sent from my LG-E970 using XDA Premium HD app
The AudioOut_2 wakelock can be caused by corrupted Mp3 files on your SD card. It was wreaking havoc in our SGS4G community and the fix for us was always to use MP3val to scan and fix those files. It cleared the AudioOut_2 wakelock right up. I know these are totally different phones but hey its worth a shot. http://mp3val.sourceforge.net
Sent from my Nexus 7 using xda app-developers app
dvdbabcock said:
The low signal shouldn't have any affect on the battery of the G, when I was on aosp I used houcha's kernel an I got great battery life around 23 hours with 5 hours of screen on and was at 22%, with set CPU profiles engaged and no kernel tweaks from any app. And I live in an area that primarily has 0-2 bars of service at home and full lte when I work I leave everything on, all radios and data sync. Now that being said for some reason the development is moving towards synergies kernel, and it doesn't have nearly the battery life that houcha's gets
CPU profiles included: https://www.box.com/s/toj5p6qclr1adf69ttfl
Sent from my LG-E970 using XDA Premium HD app
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Click to collapse
Low signal does in fact drain your battery. When you have zero to one or two bars, your phone is searching for signal, It causes the phone to increase power to the antenna, to get signal.
Tyler44346 said:
Low signal does in fact drain your battery. When you have zero to one or two bars, your phone is searching for signal, It causes the phone to increase power to the antenna, to get signal.
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Click to collapse
I understand the premise that low signal causes mor power to be drained, my point was that it doesn't cause 29% on this phone that's not even close to possible
Sent from my LG-E970 using XDA Premium HD app
dvdbabcock said:
I understand the premise that low signal causes mor power to be drained, my point was that it doesn't cause 29% on this phone that's not even close to possible
Sent from my LG-E970 using XDA Premium HD app
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Sorry, I didn't say thats why your loosing 29%, i was just giving you tips on how to save battery life.
Sent from my Optimus G using xda app-developers app
Also if u are rooted u can download greenify from apps store helps with battery drain by putting apps in hibernation that normally wont go there like facebook and maps..... Etc
Via LG OG running Rootbox 4.2.2

[Q] Screen High Power Usage

After doing a complete wipe install of mean bean, my battery is still draining about 2%/minute. Now, I realize there is more than likely some other issue, that installing mean bean uncovered or removed the block before.
Questions;
1) is it normal for the screen to be using 60% of the battery power?
2) Is there actually an app that controls the battery usage, and truly kills apps?
- I have tested several, with no noticeable difference in power usage.
Thanks for any advice, for a somewhat novice rooter.
yup
The 60 normal if screens been on a lot. The 2% deal sounds whacked. Have u gone into settings/apps/running to see whats running?
Fixed, I think
trsix said:
The 60 normal if screens been on a lot. The 2% deal sounds whacked. Have u gone into settings/apps/running to see whats running?
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Click to collapse
I'm not sure what I changed, I limited the processes to only 4 running, that might have helped. The battery still drains faster than before when the screen is on, but not as it was before. I am giving "Easy Battery Saver" a try see if that tells me anything useful, it at least keeps the settings that are applied. With any luck it will keep working until I break it again, lol.
Greenify and juice defender
Sent from my EVO using Tapatalk 4 Beta
Seems like you get bad signal
Sent from my EVO using xda app-developers app
I was having bad drain issues and read some post about location tracking with Google maps. I disabled that and my battery life on MB 3.09 is back to normal which is great.
Funny thing is this happened seemly out of no where but I think there was a recent update to maps. My location tracking has always been on and never seemed to affect battery life before. Go figure.
Sent from my Nexus 7 using xda app-developers app

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