More battery use Custom ROM - Xoom Q&A, Help & Troubleshooting

Hi All,
A few weeks ago I installed Cyanogenmod 10.1 20130630 nightly on my Everest Xoom and have been very happy with the Jellybean features and performance.
The one problem I have had though is heavy battery drain. Before on ICS stock I would charge the Xoom and get around a week standby with light use between charges (I only use the Xoom no more than 20minutes a day really). Since installing Cyanogenmod, I cant get more than 2 days standby. I have set WiFi during sleep to never and I have tried charging it fully then not touching it besides a screen unlock for test purposes every day and cant get more than 2 days. Any suggestions how I can get more standby time, or a different ROM more suited to my occasional use?
Thanks!

glenb83 said:
Hi All,
A few weeks ago I installed Cyanogenmod 10.1 20130630 nightly on my Everest Xoom and have been very happy with the Jellybean features and performance.
The one problem I have had though is heavy battery drain. Before on ICS stock I would charge the Xoom and get around a week standby with light use between charges (I only use the Xoom no more than 20minutes a day really). Since installing Cyanogenmod, I cant get more than 2 days standby. I have set WiFi during sleep to never and I have tried charging it fully then not touching it besides a screen unlock for test purposes every day and cant get more than 2 days. Any suggestions how I can get more standby time, or a different ROM more suited to my occasional use?
Thanks!
Click to expand...
Click to collapse
Have you checked your Battery Settings (In Settings) to see if it is a rogue app(s)? If it is, you can either uninstall that app or use Greenify (http)://forum.xda-developers.com/showthread.php?t=2155737 to hibernate it and prevent it from wasting even more battery life. If you can't find anything abnormal in Battery Settings, install Wakelock Detector (http)://forum.xda-developers.com/showthread.php?t=2179651 and check the app the next day. Anything draining the most battery life in standby should be on the top of the list. You can then uninstall that app or Greenify it as I mentioned before. Tip: If you install Greenify, check in the settings if auto-hibernation is turned on and if it isn't turn it on. In the widgets drawer there is a Greenify widget that you can tap to hibernate now if it is on your homescreen, if you want to hibernate apps immediately.
You can also intall SetCpu (http)://forum.xda-developers.com/showthread.php?t=505419 to save battery life. Go to the profiles tab, tap add profile, change the profile to Power Off, Max to 456000, Min to 216000, and change the scaling to powersave or conservative if you don't have powersave.

Related

[Q] How do you make the battery life better on this

I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
I'm a truck driver and I'm a heavy user.
I did too before I made the changes below. These all work with the Stock Rom.
1. Installed No Lock (so that I don't have to swipe the screen to unlock, just push the power button)
2. Set screen to turn off in 30 seconds.
3. Installed Brightness Widget (allows changing the brightness from the home screen
4. Installed Screen Filter (lets me really darken my screen at night.
Try those and see how you do.
5. I then flashed the Infused Rom (I now get up to 10-14 hours)
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
Custom kernal and rom
Running refused and infusion 1.8 rom and I get 14 hours with heavy data use
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Also, Turn off GPS and Wifi when you're not using them.
Battery
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Thanks for all the advice this has really helped my battery
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
menzoom said:
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Click to expand...
Click to collapse
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
reissy said:
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
Click to expand...
Click to collapse
It seems that Samsung ****ed up and included phone CPU/screen/etc usage when measuring battery charge current.
This means that the 600 mA stock battery charge current limit isn't just going to the battery, it's split between battery/screen/CPU. If screen/CPU/etc go above 600 mA (Navigation at full brightness seems to be the most common way), battery starts draining.
It also means that unless there's something I'm missing (which I could be since the MAX8998 datasheet is super-ultra-secret), our phone isn't going to be able to do proper charge termination - if the screen is on/CPU is running, it will cause a falsely high battery charge current reading, which will cause charging to fail to terminate.
Juice defender
I found that juice defender helped my battery and i just use the free version it's a great app
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Install a ROM. Infused v2 nearly doubled my screen-on battery life and tripled my screen-off battery life.
sweetboy02125 said:
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
That's excessive... Rogue app maybe?
ptgptg said:
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
Thanks I never new that
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
Click to expand...
Click to collapse
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Dani897 said:
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Click to expand...
Click to collapse
Actually, high cell standby is OK if the phone is screen-off often.
Cell standby is always my top user - but my phone is sitting on my desk with the screen off frequently, in a location with weak signal. Weak signal makes cell standby usage go WAY up.
Syncwifi application is awesome for extending sync settings to gain more battery
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Using titanium backup I froze drm content 2.2.1 and this significantly increased my battery life.
Sent from my Infuse. It is what it isn't.
JuiceDefender!!
I agree JuiceDefender works!! I had to charge in the middle of the day. Now with moderate use it will last all day Im on stock Rom.
I easily get 2 days out of my Infuse, no idea how some of you are managing to only get 8 hours. After rooting my phone and freezing the bloat i easily get twice the battery life of my prior iPhone 3GS.

Suddenly getting crazy battery drain

Anyone else get stupid fast drain while its sleeping? I have wifi sleep policy set to turn off wifi when screen is off, and using the task manager nothing looks to be running that i havent launched myself. But usually i'd have the battery last DAYS and DAYS if i wasn't using it that much, but the last few charge cycles it's been nearly dead at the end of the day. Is there an app I can get to monitor stuff while its sleeping to see if something is keeping it from deep sleep? I can't remember what i've installed recently that could keep it in wake-lock or whatever. Thanks guys.
There's a build in feature in the settings menu to tell you what uses battery
Check that the wifi is actually sleeping when the screen is off. Tap the power button to wake up the tablet then look at the notification bar in the right hand corner to see if the wifi is turning on and connecting. If its not doing that then I dont think the wifi is disconnecting and turning off when the screen is turned off.
For battery issues, two "must have" tools are "better battery stats" and "cpu spy"
gary's right. download better battery stats here:
https://market.android.com/details?id=com.asksven.betterbatterystats
and since the developer of that app loves XDA, there's a free version for us!
OP: http://forum.xda-developers.com/showthread.php?t=1179809
DL: http://forum.xda-developers.com/attachment.php?attachmentid=833619&d=1325149176
Look into the partial wakelock and find the cuplrit!
Battery Drain
Try loading the free util Auto Airplane Mode which has helped fix the SOD issue and the related battery drain during the SOD.
Sorry to push the old post up again.
Recently im suffering from the weird battery drain, i didnt play/use my phone much on sunday , the idle battery drain is huge. like 8 hrs from 100%-40%.
I've installed both betterbatterystats and cpu spy already.
From battstats , it shows that kworker/0:1-3 and kworker/u:12-13 etc using up most of the batt , secondly is the doubletwist music player.
From cpu spy, most of the time is with 200mhz even i didnt use the phone at all, rarely goes to deep sleep mode.
for the process kworker it didnt show whats the process/app is about , anyone else know wt to do now ?
Same problem here :-(
Fully loaded at 7 o'clock and now I'm 34% - this really sucks!
faygo6464 said:
Sorry to push the old post up again.
Recently im suffering from the weird battery drain, i didnt play/use my phone much on sunday , the idle battery drain is huge. like 8 hrs from 100%-40%.
I've installed both betterbatterystats and cpu spy already.
From battstats , it shows that kworker/0:1-3 and kworker/u:12-13 etc using up most of the batt , secondly is the doubletwist music player.
From cpu spy, most of the time is with 200mhz even i didnt use the phone at all, rarely goes to deep sleep mode.
for the process kworker it didnt show whats the process/app is about , anyone else know wt to do now ?
Click to expand...
Click to collapse
All you can do is to check the apps you recently installed or updated. They might lock you from sleep. No easy way to control this
For me it was the "samsung-keyboard" - I froze it and now everything seems normal.

[Tip] For saving battery on CM9 + other ICS roms

I wanted to share with the board a very simple (can't believe I didn't think of that) kind of way of finding out what is draining battery and disabling/uninstalling it.
My first 3 days with CM9 Alpha 3 where pretty ehhh with battery. I was draining a lil more than 10% an hour. Now I am probably 10% for 2+ hours.
Under Settings > Developer Options > Enable Show CPU Usage. Obviously I don't keep this on all day. I turned it on just to see what is in use when my phone is pretty much supposed to be idle/doing nothing. I was surprised to see how some apps where constantly popping up on the list. I spotted 2 weather apps I had constantly on this list and watchdog lite. I uninstalled them and started using Google news and weather for my weather needs and now when my phone is idle, 95% of the time its the basic system services that are running. All I did was uninstall 3 apps, which I barely used. It is crazy how big of a difference it made. Mind you I have Wifi and Bluetooth on all the time and my screen is set to Auto Brightness.
Just something I think everyone should be aware of and make use of when they have a battery problem.
P.S. I also have my governor set to conservative.

Fast battery drain

When it is I'm deep sleep it only loses 1-2% every 9 hours, but once I turn on the phone it went from 75% 50% in 45 minutes only... Losing nearly 2-3% every few minutes, so I used battery stats to see what is doing the partial wake and there is something called RILJ(dialer), which is 15% partial wake, I was wondering if this is the dialer stock system app. I'm using c2 Viper ville, I never had any battery problems until I played around with Venom tweak which was not working at the time, and did not know about it, however I did reset the tweak I think. I turned off sync, and everything. Anyone know how to fix this huge battery drain, it just went from 45% to 35% in 5 minutes....
Sent from Samsung S5
I've had the same problem with the One S S4. Here's what you can do:
-You can download a wakelock blocker or use App Opps to fix this issue. Just block the app from waking your device. Now, you said that it may be your stock phone apk, so you should probably test incoming calls after you've done this.
-Keep your screen brightness as low as possible; turn auto brightness off.
-Install a custom ROM.
I recommend installing a custom ROM if you haven't already. Non-sense ROMs have worked the best for me because all sense ROMs have given me huge battery problems.
I hope I helped!

how much battery left

When I put it to sleep it had 99 percent battery. When I woke it up 7 hours later it had 75 battery left. Is this normal. Again I didn't turn it off I just put to sleep, and no the wifi was off
Not normal, most likely a wake lock.
Usually I get about 1% per hour on standby and thats with notifications of certain applications still popping in and wifi on.
There's no one answer when it comes to battery life. Everyone needs to find their own way because everyone has their own set of applications that run in the background based on what they install and how they use the tablet.
Best advice is to monitor battery use in the battery page in settings and see what applications are near the top of the list.
I've noticed that if I leave an open S-Note session running on the tablet and let the screen go to sleep for example then I'm hit with a wakelock that keeps battery drain higher.
This kind of stuff is why many of us want root access so that we can have better monitoring ability and control over processes running on our devices.
Rooted and lots of bloatware turned off.
2 hours 36 min and still 100%
Not rooted yet and went from 84% to 81% overnight (wifi on, nova launcher, as much stuff as possible turned off without root). Can't wait to root Chainfire's root didn't work for me. Hoping he comes out with an updated version soon.
markklok said:
Rooted and lots of bloatware turned off.
2 hours 36 min and still 100%
Click to expand...
Click to collapse
May I ask what you turn off after rooting. I am trying to fix my battery life. Thanks
I mean did you shut off stock apps or 3rd party

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