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So i was doing some messing around and i found that on my phone if i leave data enabled i get ridiculous battery drain while using the phone. Just enabling data and downloading an app of the market dropped me 3%. now if i have 3g data off i get maybe 1-3% drain per hour while using the phone. maybe its just me but i think its 3g data thats draining our battery more then it is the super amoled display.
Yes, 3g data drains the battery. Use the power control widget to turn that, and GPS, off while your not using it. Your battery life will be much better at the expense of things like weather widgets not updating and contacts not syncing.
Now, does this really need to be in the development section??? Come on man, post in general or Q/A or somewhere where it would make sense to post!!!
benjio12 said:
Yes, 3g data drains the battery. Use the power control widget to turn that, and GPS, off while your not using it. Your battery life will be much better at the expense of things like weather widgets not updating and contacts not syncing.
Now, does this really need to be in the development section??? Come on man, post in general or Q/A or somewhere where it would make sense to post!!!
Click to expand...
Click to collapse
FYI the power control widget does not have the option to disable 3g data
benjio12 said:
Yes, 3g data drains the battery. Use the power control widget to turn that, and GPS, off while your not using it. Your battery life will be much better at the expense of things like weather widgets not updating and contacts not syncing.
Now, does this really need to be in the development section??? Come on man, post in general or Q/A or somewhere where it would make sense to post!!!
Click to expand...
Click to collapse
Yes i know it drains battery but this seems to be excessive compared to other phones ive had (palm pre,htc hero,tmobile g1). Also if there was a Q/A section i would of put it there hehe maybe we can get a mod to make one.
greatzak said:
FYI the power control widget does not have the option to disable 3g data
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Click to collapse
where can i turn off 3g?
I noticed the same thing with my phone. It seem when u do anything regarding the 3G your battery gets murdered. Yesterday i was noticing a 10% an hour battery drain with very little use. Over 5 hours i probably sent/received 4 or 5 text and talked for 4 minutes. Today using Juice Defender i noticed much better performance. Maybe only 4% drain with the same amount of usage.
Hopefully this gets addressed by either samsung or the amazing devs around here.
koolhand79 said:
I noticed the same thing with my phone. It seem when u do anything regarding the 3G your battery gets murdered. Yesterday i was noticing a 10% an hour battery drain with very little use. Over 5 hours i probably sent/received 4 or 5 text and talked for 4 minutes. Today using Juice Defender i noticed much better performance. Maybe only 4% drain with the same amount of usage.
Hopefully this gets addressed by either samsung or the amazing devs around here.
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Click to collapse
awesome glad im not the only one with excessive drain from 3g
So how do you disable 3g manually?
I recommend Power Control Plus from the Market.
It allows you to make power widgets including 3G data, SD Card Scan, and a working flashlight app!
http://www.anandtech.com/show/3891/samsung-epic-4g-review-the-fastest-android-phone/8
Those battery life numbers dont look good...
Geez, I just looked at that battery review. The review does look bad. I get pretty good battery life on my phone. 10+ hours yesterday with heavy media streaming, talk time, playing games & browsing the internet.
Power Control doesnt work for our phones(at least for me), failing to control 4G & 3G.. something is amiss.. doesnt even notice that i have 4G hardware
Try juice defender, turns off data whenever u shut the screen
Sent from my Epic 4G
Isnt there a serious delay when restarting 3G on that setting?.. not only that.. but everytime my screen is on, i dont want 3G running, sometimes im gaming, or doing other none internet related things.
Is there a 3G on demand button in juice or ultimate juice? ie.. only waking if prompted by a service needing the net?
Phen0m said:
Isnt there a serious delay when restarting 3G on that setting?.. not only that.. but everytime my screen is on, i dont want 3G running, sometimes im gaming, or doing other none internet related things.
Is there a 3G on demand button in juice or ultimate juice? ie.. only waking if prompted by a service needing the net?
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Lol
Sent from my GT-I9000 using XDA App
MZWiZard said:
Lol
Sent from my GT-I9000 using XDA App
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so helpful
yes theres a widget that you can use to toggle data on juice defender. you can turn data on , off, or turn it on and have juice defender control it.
2.0t03speed said:
yes theres a widget that you can use to toggle data on juice defender. you can turn data on , off, or turn it on and have juice defender control it.
Click to expand...
Click to collapse
Thank you kind sir
No problem glad to help.
Sent from my Epic 4G
No you can't shut off 3g the software wont let you
Sent from my SPH-D700 using XDA App
Hi all,
Just want to share a battery saver app which works really well on my charge. I used to have 10-12 hrs normal usage, now I have 20hrs with left over at the end of the day. The only feature that you have to look out for is "enable cpu saving", it may work for you, but for me this put my phone in so deep sleep that it never wake up. But of course just pull battery, reboot then disabled the feature. it made by a big Chinese internet security company and "melvinchng" is nice enough to translate it to English for us. All credits go to him. Hope you all like it. Cheers!
http://forum.xda-developers.com/showthread.php?t=1685816
Better than Antutu?
Sent from my SCH-I510 using xda app-developers app
cnoevl21 said:
Better than Antutu?
Sent from my SCH-I510 using xda app-developers app
Click to expand...
Click to collapse
For me it is, but the best bet is try it for yourself and let us know your opinion. You have nothing to lose.
Here is screen shots of mine. I will post a few more later.
If u want to save battery just turn off 4g under wireless and networks. My 3g only will last 1.5 days of moderate to lighter use.
Sent from my SCH-I510 using xda app-developers app
buhohitr said:
Here is screen shots of mine. I will post a few more later.
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Click to collapse
I may be missing something, but it looks like all it is doing is blocking mobile data periodically, right? mobile data is the biggest drainer on battery performance (in my experience). however, I don't want to have it off, even for a minute - as if I misplace my phone, I'll need mobile data to be on in order to find my phone via the Lookout app...
jco23 said:
I may be missing something, but it looks like all it is doing is blocking mobile data periodically, right? mobile data is the biggest drainer on battery performance (in my experience). however, I don't want to have it off, even for a minute - as if I misplace my phone, I'll need mobile data to be on in order to find my phone via the Lookout app...
Click to expand...
Click to collapse
It doesn't unless you instruct it to do so. If you toggle wifi/4g on only when needed then you should save even more. Did you see Vulkano? that video streaming over 4g. If I have wifi/4g on all the time, with my normal usage, I can have the phone unplugged at 8am to 10pm and still have about 30% left. Of course my normal usage maybe different from yours. If I have your phone in standby (screen off), I got 10hrs and the phone is at 91%.(about 1% per hrs). I suggest to find out if this app really help or not, just try it out, you have nothing to loose.
buhohitr said:
It doesn't unless you instruct it to do so. If you toggle wifi/4g on only when needed then you should save even more. Did you see Vulkano? that video streaming over 4g. If I have wifi/4g on all the time, with my normal usage, I can have the phone unplugged at 8am to 10pm and still have about 30% left. Of course my normal usage maybe different from yours. If I have your phone in standby (screen off), I got 10hrs and the phone is at 91%.(about 1% per hrs). I suggest to find out if this app really help or not, just try it out, you have nothing to loose.
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Click to collapse
thanks, I will.
I know that in standby mode with wifi on and 4G off, my battery drains about 1% per hour. with 4G on (no wifi connection), ~5% per hour.
once factoring in some moderate usage, that drops down quite significantly.
OK, as promissed, here are pictures after 11hrs. Noticed my screen time is more than 50%.
Looks good. But will need to see a comparison to without the app.
But I did download and install it. Will see how we do tomorrow.
tappin' that....
jco23 said:
Looks good. But will need to see a comparison to without the app.
But I did download and install it. Will see how we do tomorrow.
tappin' that....
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Haha, seems like to need a lot of lucks!
buhohitr said:
OK, as promissed, here are pictures after 11hrs. Noticed my screen time is more than 50%.
Click to expand...
Click to collapse
Actually, you didn't include your screen on time at all. Your screen's percentage of battery use was over 50%, though. Including your actual screen on time would help when comparing battery usage.
well, this app was a major fail for me. after 4 hours, down to 61%. it blocks what I need (google syncs such as mail, calendar, photos, drive, music, etc). so if someone sends me an appointment, I will not receive it.
I don't have any problem with Juice defender. But I guess it isn't for everyone. I just use it so I don't have to worry about manually switching back and forth between 4g and wifi as I go around throughout the day.
I turned off 4g recently to try to improve my horrible battery life (just got 4g in my area too ). It wasn't a huge difference but what really changed it for me was to stop overclocking. I really don't see much lag anyways and it didn't help with the apps I wanted so fixes fine for me.
Tazer2death said:
I don't have any problem with Juice defender. But I guess it isn't for everyone. I just use it so I don't have to worry about manually switching back and forth between 4g and wifi as I go around throughout the day.
I turned off 4g recently to try to improve my horrible battery life (just got 4g in my area too ). It wasn't a huge difference but what really changed it for me was to stop overclocking. I really don't see much lag anyways and it didn't help with the apps I wanted so fixes fine for me.
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Click to collapse
regarding Wifi, I have found that editing the build.prop file to adjust the wifi interval scan helps dramatically. I changed my 1800 (once every 30 minutes). now I leave wifi and 4G on all the time with no significant battery drainage.
but I have found that these so-called battery saving apps just simply cut off mobile data or "auto-sync".
This app was a huge fail for me. Back to the antutu battery saver i go.
Sent from my SCH-I510 using xda app-developers app
cnoevl21 said:
This app was a huge fail for me. Back to the antutu battery saver i go.
Sent from my SCH-I510 using xda app-developers app
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antutu was a fail for me too. so was "easy battery saver"
trying out juice defender again. I think I'm okay with mobile data turning on/off periodically. JD seems to do this nicely. I also like how JD turns on mobile data when the screen is unlocked.
however, I'm thinking that this could be done via a build.prop edit of some kind. essentially, what I would like to do is:
if WiFi is disconnected and screen is off/locked, turn on mobile data for 1 minute every 30 minutes, if WiFi is connected, turn off mobile data and keep wifi connection.
I'm having a hard time getting good battery with undervolting this is my settings, wanted to see screen shots of your settings and what battery life you are getting.
Sent from my SCH-I535 using Tapatalk 2
josegt said:
I'm having a hard time getting good battery with undervolting this is my settings, wanted to see screen shots of your settings and what battery life you are getting.
Sent from my SCH-I535 using Tapatalk 2
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You are also having a hard time reading forum rules and stickies too!
Developers post threads in development!
Thread moved
Forum Moderator
First, undervolting wont automatically give you great battery life. Your screen on time, brightness and things that cause wakelocks and internet syncing effect battery life more.
Second, each phone is unique, so one phone may be able to undervolt more than another. Nothing is strictly universal with this.
Third, your definition of poor battery life may not be poor at all. I made a post once ina battery thread where I showed 5 and a half hours of battery life. That sounds terrible. However 5 hours of that I was using my phone actively with the screen on. Reality is todays smartphones are big battery drainers in general with high powered screens and 4g, and on S3 if your screen on time is 4 hours or more during a full battery discharge, its fine. In that case you would then focus on wakelocks, things that wake your phone from deep sleep when the screen is off. Some times certain apps and certain settings can keep the phone awake even if screen is off.
Search the forums for threads on betterbatterystats if you want to learn how to investigate things draining your battery. But for a very basic start, keep brightness as low as you can deal with as often as possible, disable 4g when you dont truly need it and keep wifi, bluetooth and gps off when your not using them.
Thanks a lot for that information, this is a example of some battery life I got
Sent from my SCH-I535 using Tapatalk 2
4hr of screen on time is good.
Lte gives you 2-3 hrs of screen
Wifi gives you 3-5 hours of screen. The lower your brightness the longer youll go.
VZW GALAXY S 3 4G LTE
Hi all,
I got a great Nexus 5 over Christmas and have been using it quite happily with the exception of terrible battery life, getting on average 3 hours on screen time just emailing, texting, redditing, and facebooking. I'm seeing massive drain, even sitting idle overnight (~20%) on wifi. I have auto-sync off, all notifications on apps off, brightness set at ~5-10% fixed, and location on battery saving.
I've asked around and tried remedying all these problems by changing to ART, rooting my phone, installing wakelock detector, BBS, and Greenify. Greenified almost every app, minus the messenging apps. These steps didn't do anything for me, so I installed Franco kernel, which also hasn't done much for me either. I got rid of Facebook, which didn't do much (seeing a trend? hehe). Finally set my phone into safe mode last night to see if battery was just as bad, and lost 23% in 8 hours (still a far far cry from the whole sleep like a baby), so it's not some rogue app issue.
Now I've read a number of things related to terrible battery life on 4.4.2 and that the best remedy is just a factory reset. What does that do exactly aside from wipe out data? If I just end up reinstalling the same apps, and going back to my old settings, won't I get the same problems again? And if I go ahead with a factory reset, should I be sticking with Dalvik or ART? Should I try flashing back to a 4.4 image provided by Google (can I even do that?)? Or should I be returning my phone to get a replacement?
Many thank yous in advance for thoughts and sorry for any noobish questions
Sometimes settings existing before an upgrade conflict with the upgrade causing things to act incorrectly. I would always recommend a reset after an OTA but most simply won't do it.
You could post your bbs log
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battery life is dependent on how you personally set up your phone, what apps you chose to install(facebook is the worst app for draining your battery. itll drain it even if you never open facebook), the way that you manage your apps, and very importantly, battery life depends a whole lot on the quality of your phone and data signal.
rootSU said:
Sometimes settings existing before an upgrade conflict with the upgrade causing things to act incorrectly. I would always recommend a reset after an OTA but most simply won't do it.
You could post your bbs log
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That makes sense. Would my unlocking bootloader/rooting my phone count as my factory reset after updating to 4.4.2? Or should I do it one more time after having switched kernels? Thanks!
simms22 said:
battery life is dependent on how you personally set up your phone, what apps you chose to install(facebook is the worst app for draining your battery. itll drain it even if you never open facebook), the way that you manage your apps, and very importantly, battery life depends a whole lot on the quality of your phone and data signal.
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Totally understand that. I thought that doing safemode effectively just makes all third party apps disabled and thus my phone is about as stock as can be then? Would this be saying something about the quality of my battery then?
Unlocking bootloader resets, yes
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hsuuperman said:
That makes sense. Would my unlocking bootloader/rooting my phone count as my factory reset after updating to 4.4.2? Or should I do it one more time after having switched kernels? Thanks!
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a. it factory resets when you unlock the bootloader.
b. factory resetting after switching ketnesls makes no sense. you dont even have to wipe anything for flashing a kernel.
c. your setup, your apps, and the quality of your signal is most important for battery life. if you factory reset, then set your phone up the same way again, and have the same signal quality as before, you will just have the same battery life as before.
simms22 said:
a. it factory resets when you unlock the bootloader.
b. factory resetting after switching ketnesls makes no sense. you dont even have to wipe anything for flashing a kernel.
c. your setup, your apps, and the quality of your signal is most important for battery life. if you factory reset, then set your phone up the same way again, and have the same signal quality as before, you will just have the same battery life as before.
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I guess then my question is then, did my experiment in safe mode actually tell me anything? I have nearly everything off, my settings should techncially reflect a more power saving state, and I figured a safe mode overnight at home, on my own wifi network, would tell me if it was something with my battery or something with my apps... am I wrong?
hsuuperman said:
I guess then my question is then, did my experiment in safe mode actually tell me anything? I have nearly everything off, my settings should techncially reflect a more power saving state, and I figured a safe mode overnight at home, on my own wifi network, would tell me if it was something with my battery or something with my apps... am I wrong?
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i wouldnt really call it a power saving state. its more of a "safe" state, against badly behaving apps. all your normal processes are still active. anyways, 3h sot is normal, can be better, but can be worse. your signal will have a huge impact here. some people in some location will never have 5h sot, no matter how hard they try, if their phone and data connection dont support it. and again, that facebook app can be a battery slaughterer just by itself. i uninstalled it two plus years ago when i didnt open the app for over a month, yet it continued to drain my battery(averaged around 7-15% battery use, one day it used 22%, so i uninstalled it from all my devices and have been happy since).
Hi,
So I was charging my phone turned off indicating 47% then I pulled the charger and turned it on.
Suddenly the battery indicates 57% after boot.
I am planning on deleting the Batterystats.bin on 1% before the battery drains then make a full charge while phone is Off.
Is this okay? Healthy? Not Good?
Thanks in advance!
Deleting battery stats doesn't make a difference on this phone. Although some people swear by it.
sent from my Hammerhead Nexus
There's a thread about it here:
http://forum.xda-developers.com/showthread.php?p=40839160
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CRIME INC. said:
Deleting battery stats doesn't make a difference on this phone. Although some people swear by it.
sent from my Hammerhead Nexus
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+1
Sorry for my English