[Q] App to kill wakelock - Galaxy S II Q&A, Help & Troubleshooting

Hi all,
Is there any app to kill apps that are causing wakelocks above a certain amount of time?
I don't know if you experience this problem, but sometimes whatsapp goes into a wakelock called "fullsync" which basically knackers the battery. If I am lucky, I can detect this early and do a reboot
If I am not lucky, it just eats away the battery, major bummer.
Watchdog doesn't really kill apps if it is not using CPU power isn't it? This whatsapp wake lock doesn't use CPU power, it just sucks battery from nowhere

change Kernel mate.

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[Q] Wanted battery saver

Hi all just wandering if anyone has good suggestion for saving battery. Maybe an app that saves battery or recommend something else. Im constantly charging my phone 3 times a day and my battery goes quick. Im using task killer and killing unwanted apps that are running. I have lowered the screen brightness as well. But my battery still runs out quickly.
Thank you
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I have also tried cpu tuner and battery saving apps but they seem to make my phone run slow and sometimes freeze.
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you might be running quite a lot of widgets. or animated wallpapers. taskkillers sometimes aggravate the problem, since the apps they kill, will auto start.
try some system monitoring apps. these will tell you what apps are actually USING CPU cycles. they are the ones that kills your battery quick. then you have the option to uninstall the cpu-hoggers.
if all else fails, try a different battery, or have your phone checked
Background Data is battery killer
Also double check to see if background data is being used. Settings ---> Accounts and Sync. If background data is on, many apps will continue to open themselves and refresh their data before your task killer kills them.
ctalcant said:
Also double check to see if background data is being used. Settings ---> Accounts and Sync. If background data is on, many apps will continue to open themselves and refresh their data before your task killer kills them.
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Is this the reason why everytime I open advance task killer, a lot of apps show up even if I didn't use them? like yahoo messenger, music, mail,.. I think almost all of my apps show up and I only have like 20+MB of free space even if I kill apps every 30 minutes?
elena17484 said:
Hi all just wandering if anyone has good suggestion for saving battery. Maybe an app that saves battery or recommend something else. Im constantly charging my phone 3 times a day and my battery goes quick. Im using task killer and killing unwanted apps that are running. I have lowered the screen brightness as well. But my battery still runs out quickly.
Thank you
Sent from my U20i using XDA App
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My suggestion is to stop using autokill apps (if you're on eclair). Just kill apps manually when you feel like your phone is slowing down. What launcher are you using? Zeam is lightweight and fast. Also, keep the number of homescreen and widgets to a minimum, only the ones that you need. I also think auto rotation of the screen consumes a lot of power (I may be wrong). Is you phone new? It takes a few discharge/charge cycle before the battery achieves its full potential. Turn off WCMDA when you're not using it (use only GSM). Turn off WiFi, Bluetooth and GPS when not in use.
These are the things that I'm doing and my battery lasts 2 days with heavy texting (when I say heavy, it's 100+ text messages sent a day plus 200+ text messages received), music (1-2 hours when travelling), 1-2 hours talk time per day and a few games. I also use navigation and facebook from time to time. I use Zeam and I have 4 homescreens and 4 widgets open (APNdroid, Clock wdgt, Power Control, XPERIA Flashlight)
pabling19 said:
My suggestion is to stop using autokill apps (if you're on eclair). Just kill apps manually when you feel like your phone is slowing down. What launcher are you using? Zeam is lightweight and fast. Also, keep the number of homescreen and widgets to a minimum, only the ones that you need. I also think auto rotation of the screen consumes a lot of power (I may be wrong). Is you phone new? It takes a few discharge/charge cycle before the battery achieves its full potential. Turn off WCMDA when you're not using it (use only GSM). Turn off WiFi, Bluetooth and GPS when not in use.
These are the things that I'm doing and my battery lasts 2 days with heavy texting (when I say heavy, it's 100+ text messages sent a day plus 200+ text messages received), music (1-2 hours when travelling), 1-2 hours talk time per day and a few games. I also use navigation and facebook from time to time. I use Zeam and I have 4 homescreens and 4 widgets open (APNdroid, Clock wdgt, Power Control, XPERIA Flashlight)
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do this and in addion add some system apps that keep reopening to the task killers ignore list. Like for me for some reason the settings app opens 2 mins after i kill it, wasting battery. So i set it to ignore
I found that lowering CPU Frequency on Standby helps the battery. I squeeze about half a day equaling a day and 1/2 out of phone. To achieve this I use Overclock Widget(it's the only one I tried) and it does the job. Search the market for a CPU tuner that has Standby and Screen On settings. Hope u get results.
my phone lasts for two days now, and used to last only for ten hours. There are two important things to save battery: use 2g and kee gps turned off! I used to let it enabled thinking that if there were no difference if there were no apps using it. Stupid idea...
i'm using JuiceDefender beta
jetpileder said:
i'm using JuiceDefender beta
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I tried it before. Actually I have the donate version, but don't use it anymore. Just use 2g and see what happens.
Green Power
try Green Power Free or Premium

[Q] App to kill apps when battery reaches certain temperature

I'm looking for an app that will monitor my battery temperature (sometimes it overheats to 40-45C for no reason) and kill apps when it reaches this temperature. Whenever I notice my battery is hot i use miui long press to kill the apps, and the battery cools down again. Is there an app that can do this?
Currently I use Tasker to turn on auto sync when I am on wifi, and turn if off when wifi is disconnected so if there is an app that can monitor both my wifi and battery temp that would be great. I don't see how I can do this in Tasker
Any suggestinos would be great
Thanks a lot

How do I detect wakelocks inside of applications ?

Gents....
In the quest for battery life and RAM enhancements, and the fact that many applications use wake locks to keep themselves active in the RAM.....is there an easy method to identify which apps contain wake locks ?
I can see active apps easy enough, but does that state simply mean a wake lock is present ??
A little info from a dev or two would be much appreciated.......g
Bump....
gregsarg said:
Gents....
In the quest for battery life and RAM enhancements, and the fact that many applications use wake locks to keep themselves active in the RAM.....is there an easy method to identify which apps contain wake locks ?
I can see active apps easy enough, but does that state simply mean a wake lock is present ??
A little info from a dev or two would be much appreciated.......g
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Click to collapse
Not sure there's an extra easy way... Nonetheless, check out BetterBatteryStats, if you haven't done so already? It does detect Kernel as well as partial Wakelocks. Here's a link that should help: http://forum.xda-developers.com/wiki/Wakelocks
Also, if I remember correctly, you can open your favorite terminal emulator and type:
Su
dumpsys power
Your TE should display any at this point, and if your TE has a zero in the last two lines, there shouldn't be anything you need to worry about.
As far as RAM goes, Android has managed it well since Froyo 2.2, so its not really a concern that's worth your time. Nevertheless, I still find myself manually shutting down apps that I don't want held in RAM with SystemPanel or Taskiller anyway, d'oh! It's a bad habit - OCD problem for me, lol.., due to many years with Windows Mobile. Bottom-line is that Android will end idle app - process tasks as needed without our help, lol... and I'm sure you know that too.
In regard to battery life, here with Saurom 7.1, the display, mobile data, cell use, and cell standby, as well as an add-on ProximityScreenOff Pro app, consume the vast majority of the battery juice. That said, if I set wifi to sleep when the display is off and shut down mobile data, the battery life and deep sleep % increases dramatically.
Hope this helps a little...
Best to all,
R
Wakelock detector app
gregsarg said:
Gents....
In the quest for battery life and RAM enhancements, and the fact that many applications use wake locks to keep themselves active in the RAM.....is there an easy method to identify which apps contain wake locks ?
I can see active apps easy enough, but does that state simply mean a wake lock is present ??
A little info from a dev or two would be much appreciated.......g
Click to expand...
Click to collapse
You can check "Wakelock Detector" app which is available in Google Play
It has a simple UI which shows detail list of acquired wakelocks per each application
and as you mentioned, it shows active running apps on the top, which might have wakelock present at the moment.

Wakelock detector

Try this app friends. It will save your battery.
http://www.xda-developers.com/android/defend-your-battery-with-wakelock-detector/
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Wakelock Detector 1.4
Ever wondered why your smartphone screen doesn’t turn off automatically when it should have, the screen wakes up all of a sudden or you find your phone battery drained even when you exited apps and turned off the screen? This might be due to wakelock holding apps.”Wakelock Detector” helps you to detect battery consuming applications in your Android device by checking wakelock usage history. Now you can find out which applications drain your battery in a simple way by using this app!
"Wakelock detector" is our goal to simplify detecting wakelock issues for an ordinary user. As you know, wakelocks have enormous impact on battery life.
Some applications they use cpu in the background even while your phone screen is off. There are many reasons for that. They might be synchronizing data, polling for new messages, playing music, downloading data and so on. This is called "Partial wake lock".
And some applications hold your screen on to prevent turning off while you are playing game or reading e-book or watching movie.. This one is called "Window wake lock"
And finally, "Full wake lock" which can keep your screen at full brightness, and it can turn on your hardware key LED on.
People have problems mostly with "Partial" wakelock and it is not possible to detect them with default battery statistics app. Wrong settings(e.g Android Backup turned on), developer bug (wakelock acquired but was not released) or hidden operations (collecting data on background) can lead to wakelock issues which eventually drains the battery.
Wakelock detector groups the wakelocks by the app name to which it belongs. This makes it easy to see what app is draining your battery. Also, it shows which apps are currently running. The reason why we added this feature is , imagine that you have your screen turned on automatically and you don't know which app holding your screen on. In this case, it is helpful to see which app is currently running and holding wakelocks.
All the wakelock statistics are shown since phone reboot. Note that if you unPlug USB Cable when the battery is more than 90%, the battery statistics will be reset.
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venkatesh123 said:
Try this app friends. It will save your battery.
http://www.xda-developers.com/android/defend-your-battery-with-wakelock-detector/
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does it really work?
I hope it wont cause a problem with custom FMs
No it will work properly
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No causes
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[Q] Stopping all service will it improve battery life..?

Pls guys i need help..
If i stop all services (task manager/settings/stop services)...will it improve my battery performance....?
Vicky_59 said:
Pls guys i need help..
If i stop all services (task manager/settings/stop services)...will it improve my battery performance....?
Click to expand...
Click to collapse
It'll improve battery life a little. But what drain battery is 3G and wifi and the service that prevent your phone to go to deep sleep mode while 3G/wifi is on. You can install CPU spy and wake lock detector to investigate what drain your phone battery and try to stop that service or remove it.
artit said:
It'll improve battery life a little. But what drain battery is 3G and wifi and the service that prevent your phone to go to deep sleep mode while 3G/wifi is on. You can install CPU spy and wake lock detector to investigate what drain your phone battery and try to stop that service or remove it.
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Click to collapse
Thanks for ur reply...ok let me try with cpu spy and come back to u....but i have already installed wakelock detector...
I use Greenify to stop services from those apps that I am not currently using. When Greenify hibernates the app, it also hibernates the related service.
I did see a small increase in the amount of deep sleep and a small battery life improvement. Of course, your mileage may vary due to not all services waking the device.

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