Does NFC drain battery? - Galaxy S III Q&A, (US Carriers)

I couldn't find a thread on this and was just curious if NFC drains battery. If so, does it drain a significant amount or is it miniscule?
Cheers

Working on benchmarking that myself right now. Not sure yet.
Sent from my SPH-L710 using xda premium

bump...good question

I haven't noticed any change with it in and off but there is no imperical evidence .. Just from what I've noticed...
Sent from my SPH-L710...if some one helps you press the thanks button

I'm going to test it out for the next few days and will post what i find.
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If it does burn any battery and I mean any I will be disabling it as I don't use it. If I ever need it I'll just enable it again. But until I hear that it takes any battery at all I'll leave it on.

No. NFC is completely off unless the device is on and unlocked when it is on consumption is very low.
They actually talked about this at IO as well - breaking down battery drain while the device was on and in use NFC accounted for 0.5% of power consumption (out of 100). Again this is while the device was on. Given that it's disabled when the screen is off you're looking at less than that averaged over regular use of the device.

krohnjw said:
No. NFC is completely off unless the device is on and unlocked when it is on consumption is very low.
They actually talked about this at IO as well - breaking down battery drain while the device was on and in use NFC accounted for 0.5% of power consumption (out of 100). Again this is while the device was on. Given that it's disabled when the screen is off you're looking at less than that averaged over regular use of the device.
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Thanks for the info. I have been using NFC all day and haven't noticed any difference in battery at all. 0.5% is hardly noticeable and disabling it would be pointless. With that said, I flashed a new ROM before clearing the data from Google Wallet so I likely bricked my GWallet anyway so it wouldn't make much difference to me anyway.
*Thanks button clicked

Related

Better battery life for Android system?

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
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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
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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
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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
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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
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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?
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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.
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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
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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
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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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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.

Battery drain

Can somebody help. My sgs3 battery seem to drain like a loose drain. I charge 100% at 12.30am and go to sleep but by 5am battery is completely drained and phone is dead off. This is not the same during the day. Are there processes running when the phone is Idle that brings about this massive drain. Please I need help asap.
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Do you leave many programs running, alot of frequent sync going on? Did you leave Bluetooth on or something that you don't need during night? Just guessing...
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Search battery drain on Google for this device....lots of results,b but it generally comes down to learning how to use your phone and it's features, and when and what stuff to turn off etc etc
I don't leave anything on. I ensure I disable prefetch on my YouTube, disable auto updated on dropbox, I don't use SNS, and off course screen time out after 10 sec.
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Ibroe said:
I don't leave anything on. I ensure I disable prefetch on my YouTube, disable auto updated on dropbox, I don't use SNS, and off course screen time out after 10 sec.
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mine drop 1% per hr ... is that normal?
"multipdp" (): 12 m 26 s (746 s) Cntc/wc/ec)68/0/68 3.6%
how can i fix the multipdp problem?
Thankz for help^^
There is obviously a problem if it's dying in <5 hrs.
Did you recently connect to Kies because I was having probs with my SGS2 getting really hot and losing power as a result of Kies/a dodgy USB lead?
A factory reset solved it however ( remember to back up ) but sometimes just removing your battery for 90 seconds to reset the values works.
Good luck.
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The last thing I remember dong was hotspot and I made sure I switched off everything. From the posts above I tried the cell_standby fix and it still did not fix.
membe doing was hotspoSent from my GT-P5100 using xda premium
Ibroe said:
The last thing I remember dong was hotspot and I made sure I switched off everything. From the posts above I tried the cell_standby fix and it still did not fix.
membe doing was hotspoSent from my GT-P5100 using xda premium
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Turn off Google backup, face awake, try that for starters
First of all, switch off your phone for a while to see if there is problem in battery or its the apps you are running. If you think it is a stupid step,
Then try using some software like JuiceDefender or something.
In app manager, kill apps that are useless.
Also turn off features like bluetooth, gps etc. if on.
Reduce phone's brightness, recommended to set it to "auto".
Turn off useless vibrations and LED notifications.
You should now see significant improvemance in battery life.
Hope this helps
I have taken all these steps gone ahead to remove live wall paper, auto sync disabled, brightness is set at auto. And its still the same. I don't want to tow the line of hard reset because am not sure that would solve the problem coupled with the time it would take to get my sgs3 to suite me
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I use juice defender which manages everything for me, an overnight schedule ensures the battery only drops by 1 or 2%
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okay so i thought i had a battery problem before i tried putting my phone aside (meaning no games, no internet browsing and no video streaming nothing, just using whatsapp and leaving facebook connected. I also have lots of apps and games installed over 15 or something)
If you decreasing screen time you will notice a HUGE difference (24hrs in my case), its basically down to usage, I have tried over 10 different roms and kernels as well as the v6 supercharger script, i dont ever notice the difference, EVER. unless of course i use a minimalistic rom with almost nothing to play around with, but if thats how u like it then go for that. Id say following all the fundamental steps will take you a long way
my final advice:
less screen time
when on the screen use the least brightness available
decrease stock brightness even more if you can
less app usage
if your not one to constantly play with your phone and customize stuff on it try installing a minimal rom like
|ROM|XXBLG8| IOIDroid Super Slim Edition | Buttery Smooth | V1.0.0 LIVE !! |
or
[ROM][4.0.4] Slim ICS (SGS3) - Clean, Simple & Fast (63MB)
i dont know if this is a placebo of not, but sometimes i notice improvements when i undervolt, underclock and limit to only dual core. believe it or not sometimes it has little or the adverse effect of saving battery
good luck man
And another question, which can be solved through the search function or Google -.-
http://forum.xda-developers.com/showthread.php?t=937080
So here is my experience. Have been using android for years, have had an hd2 so I know how to get good battery life results. For some reason I easily lost 15-20% overnight with just the gsm 2g radio on. No matter what I did it drained fast even though deep sleep was fine, all extras sync and etc were off. 3hrs screen on time in 14 hours and it was dead.
I kept waiting for an update to solve this and it never came even though I was force checking it.
I ended up factory resetting the phone and as soon as it booted up an ota update popped up. Since then I am having nearly 6hrs screen on time in 40hrs,which is amazing.
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I will try the juice defender route and hope that it solves my problem or else I will be forced to tow the hard reset route.
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Greetings, I have seen a similar problem back in our hox forums. I have come here in peace to help, though. Recently, someone suggested bump charging, it's like a natural way of making your battery recalibrate itself without wiping battery stats or stuff like that.
First off, charge the battery until it says 100% while the device is on.
Then remove the charger, turn off the power, and charge again.
Remove the charger again when it says full while the device is off.
Turn it on again, then when it's properly booted, charge again, but don't use the device until it says it's fully charged already.
Mind you, we're not sure if it's just a placebo or not. Some claims to have had better battery life after doing this for once a month. I haven't tried it yet, but I thought I could share it here too.
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wtfshouldidonow said:
Greetings, I have seen a similar problem back in our hox forums. I have come here in peace to help, though. Recently, someone suggested bump charging, it's like a natural way of making your battery recalibrate itself without wiping battery stats or stuff like that.
First off, charge the battery until it says 100% while the device is on.
Then remove the charger, turn off the power, and charge again.
Remove the charger again when it says full while the device is off.
Turn it on again, then when it's properly booted, charge again, but don't use the device until it says it's fully charged already.
Mind you, we're not sure if it's just a placebo or not. Some claims to have had better battery life after doing this for once a month. I haven't tried it yet, but I thought I could share it here too.
Sent from my HTC One X using xda premium
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Click to collapse
I saw this method being used with good results (reportedly) on my SGS2 so it's definitely worth a bash if you can't be arsed to reset.
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Just to offer two cents from my experience with this phone.
I recently got a replacement for my s3.. the details of that are for another post, but this relates to battery:
when I first got the phone i started using it right away. I did not charge the battery until I got to the office and charged the phone while using it the first day.
when I got the second replacement phone I already had a second battery.
This battery was fully charged and immediately used that in the new phone. fully charged the samsung battery before I used it.
I noticed significantly better performance with the second phone. I think it was because of the way i treated the battery strait out of the box.
any one agree, or have a similar experience?
Ibroe said:
Can somebody help. My sgs3 battery seem to drain like a loose drain. I charge 100% at 12.30am and go to sleep but by 5am battery is completely drained and phone is dead off. This is not the same during the day. Are there processes running when the phone is Idle that brings about this massive drain. Please I need help asap.
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Do you have an Exchange account set up?
After the newest update i also notice that it has a high % drain even if i turn 3g off, gps and everything nothing unusual runs in the background that can explain high drain yet it does.. and i didnt notice that before the latest update and i havent installed any weird apps. I also have all my weather and news on manual update so i dont get what can drain the battery with internet off overnight.. its frustrating a bit.

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!.
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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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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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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
Click to expand...
Click to collapse
Could you please share your settings to get these results.
Thanks.
chippyuk said:
Could you please share your settings to get these results.
Thanks.
Click to expand...
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
Click to expand...
Click to collapse
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.
Click to expand...
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
Click to expand...
Click to collapse
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.
Click to expand...
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
Click to expand...
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?
Click to expand...
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.
Click to expand...
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.
Click to expand...
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
Click to expand...
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.
Click to expand...
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
Click to expand...
Click to collapse
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] Double Tap To Wake -> Battery

Does anyone know any current news about this function and battery consumption? Really it consumes more battery? I believe it was something to consume more battery, Sony would report this to enable the option!
It seems negligible. The phone still goes into deep sleep.
hi.im check .do not exceed battery consumption
I don't think this feature consumes a lot of energy. It's a great feature for me, btw. So why disable it? I'd rather use my phone 10 mins less than not using this feature.
Thanks guys for the reply!
I believe if consuming battery, Sony put a warning when activating this option!
behroozexe said:
hi.im check .do not exceed battery consumption
Click to expand...
Click to collapse
@behroozexe, how did you check?
I'm pretty sure it doesn't use battery either. Still goes into deep sleep for me. But if ever it DOES use battery life, it's probably very minimal anyway.
BR4DOKYBrazil said:
@behroozexe, how did you check?
Click to expand...
Click to collapse
hi dear. i disable all other app and check at 2 period. first with 2 tap enable and then without 2 tap.
There was no significant change
Well I think it just keeps your digitizer on and uses a negligible amount of power ..but correct me if I am wrong !
In a device from Nokia that I can not remember the model has the same function and activate it the user is informed that this option will consume more battery than normal!
Simple! If you want to use such tech then enable it and take risk (if there's any like battery consumption and such), and if not, DISABLE it, cased closed.
I don't notice any further battery consumption using this feature. 3-4h with 1% battery consumption is really good.
Take it easy, pals! Why are you so serious about battery consumption? Be happy and use it.
mr_maiden said:
Take it easy, pals! Why are you so serious about battery consumption? Be happy and use it.
Click to expand...
Click to collapse
It once raised this doubt in a thread and I had that in mind! I find it strange it consume more battery and Sony always worried about the battery do not put any advise to enable this option!
How do I activate this double tap to wake feature??
Sent from my D6502 using XDA Premium 4 mobile app
@azeter go to settings - display - tap to wake up.
Just to let you know, I have completely forgotten about this feature and started using it since this Wednesday, after comming across this thread.
I have not noticed any effect on the battery life, not noticable as my usage pattern is quite consistant daily and I could tell...
valdigre said:
Just to let you know, I have completely forgotten about this feature and started using it since this Wednesday, after comming across this thread.
I have not noticed any effect on the battery life, not noticable as my usage pattern is quite consistant daily and I could tell...
Click to expand...
Click to collapse
Tks for the info, man
Deep sleep
How do I tell if my phone enters deep sleep?
bbs2web said:
How do I tell if my phone enters deep sleep?
Click to expand...
Click to collapse
Use this app https://play.google.com/store/apps/details?id=com.bvalosek.cpuspy.realgpp

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