Related
Is there battery saving by enabling wifi sleep policy when screen is off? Seems to me it should but I would think ROMs such as Unnamed and SHOstock would have it set that way by default if it was..
Sent from my SAMSUNG-SGH-I777 using XDA App
This actually belongs under the Q & A section...
However to answer your questions... Setting it to never when plugged in is a good idea. it'll make it so your WiFi only suspends and turns off the radio when the screen is off and running off the battery.
Our device's wifi standby power drain is so low and wifi uses so much less power to transfer data in the background than the cell radio that leaving wifi always on saves battery.
This isn't 2009 when wifi chips hogged power just by being turned on - the BCM4330 has been found in many phones since early-mid 2011. (The BCM4329 eats a lot more power.)
Now in the case of UCKK6 firmwares, the wifi chip seems to be running broken firmware that causes it to wake up the CPU all the time - but that's just UCKK6. On a non-broken firmware like UCKH7, XWKL1, or XWLA4, leaving the wifi chip always on will consume insignificant power when not connected to wifi, and save power when connected.
Entropy512 said:
Now in the case of UCKK6 firmwares, the wifi chip seems to be running broken firmware that causes it to wake up the CPU all the time - but that's just UCKK6. On a non-broken firmware like UCKH7, XWKL1, or XWLA4, leaving the wifi chip always on will consume insignificant power when not connected to wifi, and save power when connected.
Click to expand...
Click to collapse
Interesting, have many UCKK6 users suffering battery drain problems noticed a big difference in battery life after flashing
UCKH7, XWKL1, or XWLA4?
I'd most certainly give it a try if others had success going this route..
Sent from my SAMSUNG-SGH-I777 using XDA App
Captpt said:
Interesting, have many UCKK6 users suffering battery drain problems noticed a big difference in battery life after flashing
UCKH7, XWKL1, or XWLA4?
I'd most certainly give it a try if others had success going this route..
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
If you're suffering any battery drain that involves high Android OS battery percentages (70%+) when wifi is on - Any of those three firmwares should entail significant improvement.
Entropy512 said:
If you're suffering any battery drain that involves high Android OS battery percentages (70%+) when wifi is on - Any of those three firmwares should entail significant improvement.
Click to expand...
Click to collapse
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
jhermit said:
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Darn, Android OS has never gotten near those numbers.. Guess my search goes on for better battery life
Sent from my SAMSUNG-SGH-I777 using XDA App
jhermit said:
My experience has been that KH7 did not offer much of an improvement over KK6. Android OS is still over 70%. Battery life is only a slight bit better.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
Time to use a i9100 firmware then.
Red5 said:
Time to use a i9100 firmware then.
Click to expand...
Click to collapse
yes, I was going that way but hellraised ROMs don't seem to work with passwords which I need for my work. I actually believe there is something wrong with the phone itself and not the firmware. Getting ready to post a wireshark and dmesg on another thread to see what others think. I'm out of warranty, so I'm stuck with it (careful buying refurbished phones from at&t).
Sent from my FrankenTAB using Tapatalk
Is your usage low? If you barely use your phone, then high android os would be perfectly normal. If not, hellraise a better firmware
Sent from my SGH-I777 using XDA App
Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
No fix for this until cm sorts it. Live with it or go back to ics I'm afraid mate
Sent from my GT-I9300 using xda premium
I am having the same battery drain with my sgs3 running ics, what battery fix did you use. I would like to try it out.
Sent from my GT-I9300 using xda premium
here u go:
http://forum.xda-developers.com/showthread.php?t=1732722
let me know if it works, i tried it and no luck on my S3.
syber192 said:
here u go:
http://forum.xda-developers.com/showthread.php?t=1732722
let me know if it works, i tried it and no luck on my S3.
Click to expand...
Click to collapse
That is not repeat not a battery fix if you read the post it fixes a misreported figure only .
battery drain is user start with Better Battery Stats and look for wakelocks .
Battery requires five days use from flashing a new rom .
jje
Screen will always use 40%+ unless you aren't using your phone.
syber192 said:
Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
Click to expand...
Click to collapse
Running the same build myself and experienced an 18% drop last night on standby with Wi-Fi on over 7 hours, i have flashed the latest Siyah kernel update today and ive every confidence this will increase battery life as when i checked the kernel wakelocks this morning the wakelocks were big, the CM kernel i believe is the main culprit in this instance.
Also take into consideration any apps / widgets you have which update and any sTuff you rarely or never use freeze in Titanium backup and also go into advanced in Wi-Fi and set to never or only when plugged in and this will make a difference.
And finally don't use Juice Defender or any other battery saving apps as they use up more battery than they save!
jonny68 said:
Running the same build myself and experienced an 18% drop last night on standby with Wi-Fi on over 7 hours, i have flashed the latest Siyah kernel update today and ive every confidence this will increase battery life as when i checked the kernel wakelocks this morning the wakelocks were big, the CM kernel i believe is the main culprit in this instance.
Also take into consideration any apps / widgets you have which update and any sTuff you rarely or never use freeze in Titanium backup and also go into advanced in Wi-Fi and set to never or only when plugged in and this will make a difference.
And finally don't use Juice Defender or any other battery saving apps as they use up more battery than they save!
Click to expand...
Click to collapse
I installed syiah kernel s3-v1.5beta5 over CWM yesterday and still no change, Cell Standby is now using 70% while screen dropped to 7%. I will
now try to disable all automatic updates.
After installing [ROM][AOSP] [4.1.1] Liquid JellyBean Beta 1.1 battery works pretty good without even installing kernel 1.5beta4.
Cell standby dropped to 37% and Screen to 27%
I must say this ROM works faster and adds a few cool options for personalization.
syber192 said:
Hi
Last night i installed the [ROM][AOSP][JB][4.1.1][STABLE] SuperNexus - I9300 - BUILD 1 on my Galaxy S3 device and i noticed my battery is draining out like crazy. Cell Standby and Screen are using more than 40% each.
When i was using Ice Cream Sandwich i had the same problem but after installing the battery fix it all worked so tried the fix on JB and nothing.
Is there any other fix or solution for this?
Thanks.
Click to expand...
Click to collapse
- I recommend you to go to stock or modified ICS , simply functioning Roms and stable .
- JB you can flash it just for fun , still under construction and testing , can't litterly judge it .
You may want to try different modems. Cell standby is mostly not influenced by the ROM but your reception and the flashed modem.
d4fseeker said:
You may want to try different modems. Cell standby is mostly not influenced by the ROM but your reception and the flashed modem.
Click to expand...
Click to collapse
My operator is Movistar from Spain and i am currently outside of the country. I flashed my S3 to JB after leaving the country and now i have no reception, can this be the reason why Cell Standby is always around 70%?
syber192 said:
After installing [ROM][AOSP] [4.1.1] Liquid JellyBean Beta 1.1 battery works pretty good without even installing kernel 1.5beta4.
Cell standby dropped to 37% and Screen to 27%
I must say this ROM works faster and adds a few cool options for personalization.
Click to expand...
Click to collapse
I am using this Rom as well and i must say it`s very good. Have a lot setup possibilities, and runs very smooth. For me i`ts the best JB Rom, better than SuperNexus. Just have the one issue - camera!
Hey friends I am currently running the OMEGA v28 4.1.1 JB ROM on my international GS3 i9300 and it is also rooted of course and I don't think I'm being paranoid but my battery life has took a massive drop since rooting my device. I am not overclocking mu CPU and I have tried out some rooted apps like battery saver for example and I actually think it made it worse. I have all the usual setting disabled to allow for optimal battery life like brightness right down, auto sync off, wi-fi off when the phone is locked I also only use the wi-fi manually if and when I need it and all that good stuff like smart stay and vibration off. I am wondering if anyone knows of something I'm not trying???
Had it charged to 100% this morning at 9PM and by 1PM I'm down to 79% already and I haven't made any calls and only used it to check my email and facebook for around 10 mins!!! is this normal for everyone else???
:crying::crying::crying:
Cheers
Gary
Sound normal for Sammy JB rom.
Some said Facebook is also causing the battery drains.
Sent from my GT-I9300 using xda app-developers app
Did you reset your battery stats? Charge to 100%, reset battery stats from CWM or delete batterystats.bin -file, let the battery run out.
You might want to use currentwidget to log your battery usage.
I noticed big battery drop between 4.0.4 and 4.1.1 used to get 24 hours one charge 4 hours screen time. Now I get only about 12 hours.
Might just be me :/
Sent from my GT-I9300 using xda premium
I'm using also omega rom v28, have it installed recently. I cannot say how good is the battery with this rom, but so far I have like 56% in 20h, with 2h screen, sopcast 30min, voice cals 37mins....etc (also using wifi manually when needed)
Try out different roms and find out what works for you.
You can also use an app like BetterBatteryStats to check what's draining your battery. Its just to check whats use power.
Don't use batterysaving apps most of the time they are making it worse
I'm running Omega ROM V27.2 and yes it's normal to have a difference about battery life between ICS & JB.
To improve my battery life I installed the phenomenal extreme kernel, and now I'm totally happy with it. You should take a look to its topic in the GS3 Android Development forum. The dev developed 3 versions of his kernel to fit to most of the phone.
Also as others told you, you should get BBS app to point out the wakelocks & define which app is your problem.
Personally, I'm at 45% charged, and already used it during 21h 10m including more than 2 hours screen on. My auto-sync is always on and my WiFi only when I enable it. I'm using a live wallpaper and a lot Twitter.
When I do nothing I can reach more than 2 days.
Sent from my Galaxy S3 with Omega ROM v27.2 / Phenomenal Extreme 4.0 kernel
Hallo,
I have the OMEGA v28 4.1.1 JB ROM flashed on Thuersday and i´m testing the ROM at a long time.
I use the Phenomenal4.0Medium Kernel and i must say the BatteryLife is very good. I`m working over 15 ours with him and i have 58 % on it.
My WIFI is every time on and Autosync when i use my calender and planners. For me a good app handdling battery life is "GREENPower" in Market Place.
But it´s my idea.
Here is the Link for the phenomenal kernel in xda android Galaxy S3 Deverlopment:
https://www.google.com/url?q=http:/...ds-cse&usg=AFQjCNHwKPxW1UU2a1wL7GTpnUzIaGRUxw
Greetings
sorry for my bad english
P:S Many pleasure for all german flashers
Thanks guys for the info
I will give all this a try and see how I get on. Cheers for all your input.
Gary
Thanks for the help I have installed the phenomenal kernal, hope it helps a little.
gimmick56 said:
Hallo,
I have the OMEGA v28 4.1.1 JB ROM flashed on Thuersday and i´m testing the ROM at a long time.
I use the Phenomenal4.0Medium Kernel and i must say the BatteryLife is very good. I`m working over 15 ours with him and i have 58 % on it.
My WIFI is every time on and Autosync when i use my calender and planners. For me a good app handdling battery life is "GREENPower" in Market Place.
But it´s my idea.
Here is the Link for the phenomenal kernel in xda android Galaxy S3 Deverlopment:
https://www.google.com/url?q=http:/...ds-cse&usg=AFQjCNHwKPxW1UU2a1wL7GTpnUzIaGRUxw
Greetings
sorry for my bad english
P:S Many pleasure for all german flashers
Click to expand...
Click to collapse
can try using betterbattstats to check what is causing wakelocks in your 9300
orangemanutd said:
can try using betterbattstats to check what is causing wakelocks in your 9300
Click to expand...
Click to collapse
As he recommends ...identifying and reducing your wakelocks should be your primary concern. Been reading loads from developers that the insecure jb kernels themselves should already provide good battery management.
Sywped from my GT-I9300 running Omega v28 & siyah 1.7rc1
i can't get more than 2h and 30min display and 14h stand by. I have tried perseus, siyah and speedmod kernel. Using wanamlite rom.
Sent from my GT-I9300 using Tapatalk 2
Start with a rom and minimum apps and test that .
jje
doesn't change. it's the same but everything is on: wifi sync and 4-5 accounts.
Sent from my GT-I9300 using Tapatalk 2
that is exactly why i reverted back to ICS.........JB is nice and smooth but "eats" battery quickly.........now,battery life problem on my i9300,solved
Hey guys, if you are going to use custom ROM's you should be prepared for bad battery. The developers are adding so many different features and hacking certain apps to make them work in their ROM's without a lot of investigation into what the reprecussions to battery are. I used to always use custom ROM's but haven't installed one in about 6 months and haven't any problems with battery life. I have the latest JB on my 9300 and battery life is very good. I use GSAM to watch apps that want to go rouge and start sucking battery life. Media Player Service is a big offender as is Facebook. Also stock widgets that get placed by these JB ROM's are always pinging for new data and kill battery quickly. Get rid of them! If you have a stock ROM and are getting bad battery, 99% of the time it will be bad apps, your job is to determine which ones they are and apps like betterbatterystats and GSAM work great to help diagnose the issue.
can anybody else confirm the above post? because i am not sure about the custom roms.
Sent from my GT-I9300 using Tapatalk 2
I will soon have an S3 so I cannot speak specifically about this device / ROM(s).
What I know from using a lot of Android devices and testing original ROMs vs. custom ROMs:
- original ROMs have too much garbage built-in apps and are slower
- original ROMs have everything working
- custom ROMs are much cleaner and faster
- custom ROMs have (too) much problems, something always not working 100%
- custom ROMs usually have stability & battery issues
My personal advice:
- install latest ORIGINAL ROM.
- root it
- install the free app "App Backup & Restore" from Google Play
- search unuseful apps from Samsung (& others) and block the autorun of these apps (note: do not block basic android or samsung apps, as phone, contacts, etc)
I use this method for 1.5 years and this way my Android is clean (you can save over 100-150Mb RAM), FAST and much better battery. Try it.
In the end, if original ROMs have too many original apps, custom ROMs have to many tweeks that in the end, for my taste, the original ROMs + App Backup & Restore win hands down.
zkiprov said:
can anybody else confirm the above post? because i am not sure about the custom roms.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
I have always had custom roms on all my android devices but at the moment I am running stock ics in my s3.
I don't think the S3 needs it.
To be honest I find a lot of the stock based roms full of changes I don't really need, ARHD was a great Rom but recently has started to lag really badly for me (and some other users) so I went back to stock just to see and so far I can't complain. Smooth, fast and the battery is as good if not better than the custom roms.
If the camera didn't suck so bad on AOSP I would be there in a instant
Sent from my GT-I9300 using Tapatalk 2
Edit: stock kernel with fix http://forum.xda-developers.com/showthread.php?p=42236453
A1 kernel also has fix! http://forum.xda-developers.com/showthread.php?p=30222169
__________
I have had a problem with battery life due to l2_hsic wakelock for a long time. The wakelock has been present on both stock ICS and CM 10 with my P7500. Have searched for a solution for weeks and finally realized that the problem it is modem related. Flashed a modem from before ICS, and the wakelock is now gone. What a relief to get my honeycomb battery life back! I am now running CM10 and A1 kernel V1.8.4.
The modem I flashed was XXKK2.
Link to modems: http://forum.xda-developers.com/showthread.php?t=1867147
(Thanks to AAcount for sending me in the right direction)
Re: L2_HSIC wakelock solution
Are you able to make full voice calls with the device after flashing this modem? How good is the reception for mobile data, stable or flunctuating? I am CM10 4.1.2.
Thanks.
Sent from my GT-P7500 using xda app-developers app
John Kester said:
Are you able to make full voice calls with the device after flashing this modem? How good is the reception for mobile data, stable or flunctuating? I am CM10 4.1.2.
Thanks.
Sent from my GT-P7500 using xda app-developers app
Click to expand...
Click to collapse
I am also on CM10 4.1.2. Unfortunately, I have not tried using voice calls so I do not know. I am satisfied with mobile data reception, but have not made a thorough comparison.
Well, that was disappointing...
I have the exact same issue with battery life, which on GB used to last almost 2 weeks (when the tab was not used much), and after upgrading to stock ICS 4.0.4 it now can't even hold for 2 days! CPU runs @ 200MHz ~85% of the time the screen is off and there are obviously plenty of l2_hsic wakelocks.
As suggested I replaced modem XXLQ8 with XXKK2, wiped cache and dalvik, but there is absolutely no difference in the battery life or CPU states.
I am truly devastated..
I can't imagine going back to stock GB, so is the only solution left for me now is to try an unstable nightly build of CM 10.1?
picld said:
Well, that was disappointing...
I have the exact same issue with battery life, which on GB used to last almost 2 weeks (when the tab was not used much), and after upgrading to stock ICS 4.0.4 it now can't even hold for 2 days! CPU runs @ 200MHz ~85% of the time the screen is off and there are obviously plenty of l2_hsic wakelocks.
As suggested I replaced modem XXLQ8 with XXKK2, wiped cache and dalvik, but there is absolutely no difference in the battery life or CPU states.
I am truly devastated..
I can't imagine going back to stock GB, so is the only solution left for me now is to try an unstable nightly build of CM 10.1?
Click to expand...
Click to collapse
Have you tried in combination with A1 kernel? Changing the modem made all the difference for me. An I am at CM 10 with A1 kernel.
samdal said:
Have you tried in combination with A1 kernel? Changing the modem made all the difference for me. An I am at CM 10 with A1 kernel.
Click to expand...
Click to collapse
Did not do anything better for me, flashed a new modem.... No change.
Hi!
I found the reason of the high number of L2_HSIC wakelocks in my environment.
I have a Canon multifunction scanner/printer, connected via WiFi to my home PC.
It turns out that when you install the "Canon IJ Network Scan Utilities", there's a process called CNMNSUT.EXE that wakes up every second and broadcasts a BJNP packet to the whole local network. These packets are precisely the reason why I used to get so many network-related wakelocks (yes, I also had WLAN_RX_WAKEs).
Now... this process is responsible for the communication between the scanner and the Canon driver running on the PC: more specifically, it's the process that allows you to scan a document entirely from the scanner's panel, without having to do anything on the computer.
So, here's what I did to work around the problem, while still preserving the ability to scan via the panel:
I configured a fixed IP address for the multifunction printer/scanner on my router;
I restricted the communication to and from CNMNSUT.EXE only from/to the printer/scanner's IP address, using a custom rule in my firewall.
In this way, all the broadcast BJNP packets sent by CNMNSUT.EXE are blocked by the firewall, except the ones directed to the printer, and my phone doesn't receive those packets anymore.
I hope this helps at least some of you...
ccristal
samdal said:
I have had a problem with battery life due to l2_hsic wakelock for a long time. The wakelock has been present on both stock ICS and CM 10 with my P7500. Have searched for a solution for weeks and finally realized that the problem it is modem related. Flashed a modem from before ICS, and the wakelock is now gone. What a relief to get my honeycomb battery life back! I am now running CM10 and A1 kernel V1.8.4.
The modem I flashed was XXKK2.
Link to modems: http://forum.xda-developers.com/showthread.php?t=1867147
(Thanks to AAcount for sending me in the right direction)
Click to expand...
Click to collapse
Hi,
Is the wakelock gone for you still? I've noticed it comes back sometimes. Can you please share a screenshots of the battery life and such?
Are you still using A1 kernel and this ROM 10.1 CM
or which ROM are you using?
Has any one tried 10.1v ROM?
odeccacccp said:
Hi,
Is the wakelock gone for you still? I've noticed it comes back sometimes. Can you please share a screenshots of the battery life and such?
Are you still using A1 kernel and this ROM 10.1 CM
or which ROM are you using?
Click to expand...
Click to collapse
Yes, unfortunately the wakelock comes back from time to time, with a few days in between. My dirty fix has been to use the app Reboot Scheduler to reboot my tab every night. A reboot "fixes" the wakelock. This has reduced the probability that my tab is awake for any length of time and the total battery time is close to battery time without wakelock.
Sent from my GT-I9100 using xda premium
See also ICS samsung rom free from wakelock : http://forum.xda-developers.com/showthread.php?t=2219964
Sent from my GT-I9100 using xda premium
hello,
ive an annoying problem concerning my battery in my S2.
since i updated it to JB (not rooted, everything stock), the battery drains rly quick aslong as WLAN is enabled.
like 5% in 30mins at idle. and even faster when i use it!
ive checked everything already, betterbattery -> 0 wakelocks, via systempanel -> 0 apps which use cpu power (cpu load around 0-5% max.).
just some usual wake_rx_wlan wakelocks, like ive on my S3 in comparison but that one doesnt drain battery.
via EDGE/HSDPA there is no such drain, zero!
ive read that its some JB bug currently, is that true? anyway to fix that?
pls dont come up with "it must be some app in the background", I deleted all apps already and google now is disabled, aswell as sync/location services. just to be sure..
thinking of flashing&rooting it, in order to flash a different modem/kernel
Notor1ouS- said:
hello,
ive an annoying problem concerning my battery in my S2.
since i updated it to JB (not rooted, everything stock), the battery drains rly quick aslong as WLAN is enabled.
like 5% in 30mins at idle. and even faster when i use it!
ive checked everything already, betterbattery -> 0 wakelocks, via systempanel -> 0 apps which use cpu power (cpu load around 0-5% max.).
just some usual wake_rx_wlan wakelocks, like ive on my S3 in comparison but that one doesnt drain battery.
via EDGE/HSDPA there is no such drain, zero!
ive read that its some JB bug currently, is that true? anyway to fix that?
pls dont come up with "it must be some app in the background", I deleted all apps already and google now is disabled, aswell as sync/location services. just to be sure..
thinking of flashing&rooting it, in order to flash a different modem/kernel
Click to expand...
Click to collapse
Yeah, I don't think there is any fix for that. I have the same problem.
its sometimes unusable while in wlan, cause it drains so quickly...
is there even no fix when i root it?
Notor1ouS- said:
its sometimes unusable while in wlan, cause it drains so quickly...
is there even no fix when i root it?
Click to expand...
Click to collapse
Yes I also have this, WLAN does take a lot of battery even in idle, but it's only happening in JB of my S2(I have this problem only on S2), well I am experimenting with different roms, kernels, modems, I think you guys should also try several combo for a day each, and select the best one.
Edit :it works fine for me though, only the battery drain is problematic.
Edit :Gonna jump to Omega now, Chameleon later, so on and so forth, but one rom which I am sure will give a good battery life is CM10.1 but cm bugs and me never got along with each other.
Edit:Went to Omega the result was same there.(Philz Kernel of Omegav23 ain't even the least bit stable with NeatRom 4.6.1(weird, I know both use the same kernel and modem), but somehow managed to boot it up once and with it was a rain of crashes especially the most important thing, the System UI and had to reflash NeatRom and then restore)
Sent from my GT-P6200 using xda app-developers app