Database Users

How I got my Battery Life Back!!

Through this forum and others, I was able to restore my battery life on the epic back to the 20 odd hours. I thought of writing my process here for the benefit of those who might be struggling with similar issues:
ROM: Clean GB
Tools: Better Battery Stats and Battery usage graph (BetterBatteryStats from the market. I think there is another one that is free. I will try and find it. However, the graph referred to is the one that is built it. When you see battery usage, click on the the top part and it shows the graph of battery drain. )
Observation: There is unusual usage of phone when the screen is off. The phone wakes up roughly once every 2-3 minutes even when the screen is off. Battery life between 3 and 5 hours. Emails do not sync or slow to sync.
1. Removing DRM files: The three said files were frozen using Titanium Backup. However, when I looked under battery usage/Android, I would still see DRM listed. So in the end, I UNINSTALLED all three files and the DRM was no longer listed. Not sure how much of a culprit it is but worth mentioning if you are freezing the files assuming they are not coming up. Check under Battery:
2. Calendar: This was the main culprit: Calendar storage was damaged on the phone and so, the phone was constantly polling to sync my calendar, in turn, running the battery down and making the phone slow. Cleared Calendar Storage using Titanium and that fixed the problem of syncing.
Emails:
1. Hotmail : Activesync (now on 1 hour polling)
2. Corporate: IMAP (1 hour)
(Above two running on Enhanced Email client). Not sure if standart client will also work, will test that and post later)
3. Gmail: using gmail app
Worth mentioning, that I used Enhanced Email and turned on logging to really see what was going on, hence coming to the issue of Calendar taking forever to sync.
3. SNS: The symptom was that SNS would be constanting restarting when seen under Applications/ Running services. Freezing the 2 sns files took care of that. Lost facebook status messages etc for contacts but made the phone faster.
4. KERNEL and CWM : Initially, although the phone was rooted, CWM was somehow, not FULLY installed. And for some reason, the phone would go to Sprint Recovery Menu. Also, worth mentioning, kernel usage was high. Installed the Clean_kernel and the latest CWM till I was satisfied the install was good and clean. A good way to test is to watch kernel usage on better battery stats and CWM behaviour when you go to Recovery.
5. Moved all content of SD card to PC and reformatted it. However, my SD card was fine, so did not see a change in performance, however, others might benefit, especially if you have movie files that the system is having a problem parsing.
I will add more if I think I missed something but doing the above took my phone from a paltry 3 hours on standby to more than 20 hours with usage. Totally acceptable and happy.
Hope this helps others.

Thanks, there's some interesting information in your post!

I cannot find either of those battery tools on the market... I also run clean GB...

I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
I also recommend getting CPU Master, and having both it and voltage control on boot. CPU master lets you have profiles based on events, like the screen being off, or the battery getting to hot, again setup properly this also has done a number on my standby time.
Since I just flashed this kernel I haven't run a battery test yet, I am using Legendary 2.1 and IAP 2.0.6. Will run a test tonight to see how long the battery lasts for standby, hopefully it will turn on in the morning, it hasn't in the past very often.
---------- Post added at 07:30 AM ---------- Previous post was at 07:26 AM ----------
Milkman00 said:
I cannot find either of those battery tools on the market... I also run clean GB...
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I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that

Yes, BetterBatteryStats from the market. I think there is another one that is free. I will try and find it. However, the graph referred to is the one that is built it. When you see battery usage, click on the the top part and it shows the graph of battery drain.
The important part that I wanted to see was when the screen is off, is there any activity, meaning the phone is not truely speaking. At when the phone was at its worse, there was a activity roughly every 2 minutes. That was the main cause of the battery drain.

saramon said:
I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
---------- Post added at 07:30 AM ---------- Previous post was at 07:26 AM ----------
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I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that
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I cant say much about those tools cause I havent really used them. However, in my case, the problem was a bad calendar sync and SNS, I can see Juicedefender would maybe improve the battery life as it wont let the phone connect, but wont necessarily correct the issue at hand. Just my two cents.

saramon said:
I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that
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FYI: I have the facebook app installed and it works fine. The problem is in the SNS when you put in your facebook info and it lets you sync fb events etc.
Also, by removing, I am hoping you mean you froze or deleted those two SNS files. Just watch Applications/Running to see if you see SNS there. If not, you are golden.

4hours of battery =) blazerRom is the best out right now. Thought it usually would be at 2% with 3g on and not wifi allday
Sent from my SPH-D710 using xda premium

My phone stays "awake" constantly. How can I figure out why it is staying awake??? I think that is a big part of my battery problems.

Milkman00 said:
My phone stays "awake" constantly. How can I figure out why it is staying awake??? I think that is a big part of my battery problems.
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Click to collapse
Betterbatterystats has a listing of programs under partial wake lock. See which is using up the most time.

hindibuff said:
Worth mentioning, that I used Enhanced Email and turned on logging to really see what was going on, hence coming to the issue of Calendar taking forever to sync.
.
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How do you turn on logging in enhanced email?
Sent from my SPH-D700 using xda premium

sethlo said:
How do you turn on logging in enhanced email?
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
This might help:
http://enhancedemail.net/viewtopic.php?f=36&t=4&sid=25404e9a1c5b7b2471d2e184a1fbb6e2

saramon said:
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
Click to expand...
Click to collapse
I also highly recommend this app, and have realized enormous power savings from it. My phone takes microscopic sips of electrons when in standby with JD.
However, I most emphatically DO NOT recommend that anyone be a thieving, pond-scum, crook with the ethics of a crack whore and obtain a pirated copy of this app, as saramon has recommended above. The author if this app has spent a lot of their time developing it, and should be compensated fairly. It is one of the best supported, most often update apps around. For the value it provides, there really isn't any legitimate argument justifying stealing it to avoid a few bucks.
Shame, saramon, shame.

I purchased JuiceDefender but ended up uninstalling it. Much easier just to toggle wifi and sync on-off manually, rather than tweaking it constantly. I found that the app causes more connection hassles and permission annoyances which offset any battery saving benefits it offers, and is yet another ram-draining backround process that slows my phone.

Never said that I did, but not everyone can afford it, just sayin'

hindibuff said:
3. SNS: The symptom was that SNS would be constanting restarting when seen under Applications/ Running services. Freezing the 2 sns files took care of that. Lost facebook status messages etc for contacts but made the phone faster.
4. KERNEL and CWM : Initially, although the phone was rooted, CWM was somehow, not FULLY installed. And for some reason, the phone would go to Sprint Recovery Menu. Also, worth mentioning, kernel usage was high. Installed the Clean_kernel and the latest CWM till I was satisfied the install was good and clean. A good way to test is to watch kernel usage on better battery stats and CWM behaviour when you go to Recovery.
Click to expand...
Click to collapse
I had 2 questions. First, what exactly is SNS? I see it restarting a lot as well, but I've been afraid it was something important so I've always left it alone.
And how would ClockworkMod affect battery life? Doesn't that only come into play when going into recovery mode?
Thanks

TheSkipperCDB said:
I had 2 questions. First, what exactly is SNS? I see it restarting a lot as well, but I've been afraid it was something important so I've always left it alone.
And how would ClockworkMod affect battery life? Doesn't that only come into play when going into recovery mode?
Thanks
Click to expand...
Click to collapse
If you have SNS restarting it's probably because you removed the stock "Feeds & Updates" widget that came with your phone. Either freeze SNS in Titanium Backup (rooted), put the F&U widget back on one of your screens (unrooted) or kill it after every reboot (unrooted and no F&U widget).

saramon said:
Never said that I did, but not everyone can afford it, just sayin'
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He's not suggesting that you did. He is just saying that you shouldn't suggest it to others.
Piracy is for children that want to feel savvy because they know how to steal Photoshop. Thepiratebay.org, kat.ph, isohunt, and the various novas aren't original or cool, everyone knows about them. The difference is that some people have grown up and understand that people that do work deserve to be paid for it.
Besides it is what? $2-3? Anyone with the intention to buy a product could afford that.
I bought After Effects, Sony Vegas, and Photoshop Elements. Elements I got on sale for $50. The others were a couple versions old and I got them for $300 and $150 respectively. I am a poor college kid. However, I know I can get a part time job and pay for the things I need and that's what I did. I only needed to work for about a month to buy all my software and now I have a legal license to use it. So Sony and Adobe won't try to steal the rights to everything I make >.>
In short, stuff only seems expensive if you have no intentions of paying for it in the first place. My family lives well below the poverty line and I still can afford a pretty decent production set up. I'm sure anyone could conjure up $2. It's less than a round trip bus ride.
I know this was long enough, but I figure I should mention this isn't an attack on you or anyone else. I feel very strongly about the subject and I would say this regardless of who brings the subject up. I have a lot of friends that disagree with me and I have pirated software in the past, I just think that people deserve the money they worked for. Perhaps prices could even go down if everyone actually paid for their software.

I got some life back out of my battery with CM7. Then went back to ERA legendary. I did all the following:
Wiped / reformatted the sd card, odined and repartitioned, odined ec05, odined CWM5, flashed ei22, flashed the rom, then kernel I wanted to try, multiple setups.... no avail. (Monitoring every combo with battery status)
What I have done now is repackaged the rom, removed the "stock" launcher (swapped for zeam) and a couple apks I though were pointless to me, and replaced the kernel so there is all only one flash. I am really starting to think mix_n_match flashing was causing an issue for me. Also, CWM 5 odined and not using the app is not giving me all the aformentioned issues or running as a background process...
So far my battery life is much better with one flash, but one thing I notice in all cases is after a reboot, better battery stats shows "system" under process tab, always highest on the list. Once charged it goes away until a phone call, reboot, and even after forced sync.

SNYPE2K9 said:
He's not suggesting that you did. He is just saying that you shouldn't suggest it to others.
Piracy is for children that want to feel savvy because they know how to steal Photoshop. Thepiratebay.org, kat.ph, isohunt, and the various novas aren't original or cool, everyone knows about them. The difference is that some people have grown up and understand that people that do work deserve to be paid for it.
Besides it is what? $2-3? Anyone with the intention to buy a product could afford that.
Click to expand...
Click to collapse
my troll post for the day.

Battery life in SwiftDroid (may apply to other ROMs too).

Hai,
Since nobody bothered to answer my call to track down what drains the battery I decided to just post my findings and you do with it whatever you like...
In recent couple of months I've been experiencing quite nice battery life, almost a week on standby, which is basically on par with original LG ROM. The trick is simple:
It's happening as long as the Gallery app is NOT running.
I don't know what this piece of software does but when it's loaded to memory it stays in there and ignores attempts to terminate it, doesn't sleep when phone wants to and eats battery in a matter of single day. Unfortunately it seems some other apps use it directly or indirectly, like when Wi-Fi starts and/or by Market for example. Thus my solution is just to force close the Gallery after I finish activities which seem to require it.
I don't know whether root of the problem is with the app itself (like, CM modifications made so it's more cool, at the price) or it's just something else unearthed by certain SwiftDroid's configuration. To anyone who wishes to furher investigate my sincerest good luck. And I'd be grateful if results were published too.

hmskrecik said:
Hai,
Since nobody bothered to answer my call to track down what drains the battery I decided to just post my findings and you do with it whatever you like...
In recent couple of months I've been experiencing quite nice battery life, almost a week on standby, which is basically on par with original LG ROM. The trick is simple:
It's happening as long as the Gallery app is NOT running.
I don't know what this piece of software does but when it's loaded to memory it stays in there and ignores attempts to terminate it, doesn't sleep when phone wants to and eats battery in a matter of single day. Unfortunately it seems some other apps use it directly or indirectly, like when Wi-Fi starts and/or by Market for example. Thus my solution is just to force close the Gallery after I finish activities which seem to require it.
I don't know whether root of the problem is with the app itself (like, CM modifications made so it's more cool, at the price) or it's just something else unearthed by certain SwiftDroid's configuration. To anyone who wishes to furher investigate my sincerest good luck. And I'd be grateful if results were published too.
Click to expand...
Click to collapse
i deleted this slow sh** from /system/app and installed QuickPic!

hmskrecik said:
almost a week on standby
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Are you joking? Should i use my phone as a doorstop,or what else?
EDIT: And,an old trick: when an app stays opened,to prevent it to reload again you have to delete his user data (works with Maps and Gmail too)

Eth4n said:
Are you joking? Should i use my phone as a doorstop,or what else?
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Click to collapse
You do with your phone what it damned pleases you. In case you haven't noticed the battery life is most often reported as either standby time or call time. In my typical usage battery lasts no less than two or three days but what 'typical usage' means may mean totally different things to me and to you.
Eth4n said:
EDIT: And,an old trick: when an app stays opened,to prevent it to reload again you have to delete his user data (works with Maps and Gmail too)
Click to expand...
Click to collapse
Hm, even more shotgun approach to what I described. Having user data could be the primary reason for keeping the app installed. But thanks for tip anyway, may come handy one day.

There is gr8 app on xda, better batery state. With this app you can see what aplication keep wake lock, use cpu, gps, etc...

Apps preventing phone from sleeping

So I am really angry at Android now, with all the issues and difficulties it is getting me through. Although visually and practically I still prefer it to iOS, there are some really annoying issues with it, that concern battery life/stability.
So there are apps that prevent your phone from sleeping, either leaves speaker on, or other BS. I have to close them every time I stop using the phone, to avoid a really stupid issue I had today. I recharged the phone 100% in the morning, later that day I went to check e-mails, sent a couple sms etc. and then I played this game called Pou, I left it running, the screen was off, but I didn't close it. Ended up with empty battery in 3 Hours.
This is ****ing ridiculous, what kind of smartphone is that, if it can't understand that I'm not playing games when the screen is off.
Is there at least a faster way to close all open apps, other than swiping from left to right 20 times every time you stop using the phone?!?!

What apps are causing the issue?

You're blaming the OS for the behavior of an app made by a bad developer. The vast majority of applications will not do that. iOS avoids that by limiting the cases in which an app is allowed to run in the background. You can argue that it's a superior solution for the end user, but it limits the ability for an app to actually do anything in the background.
Many custom ROMs build in a "kill all" button in the recent apps view. It's really not necessary though. You've identified an application that has this issue, so just make sure to kill that one app when you're done with it. Again, most applications won't have that problem.

raptir said:
You're blaming the OS for the behavior of an app made by a bad developer. The vast majority of applications will not do that. iOS avoids that by limiting the cases in which an app is allowed to run in the background. You can argue that it's a superior solution for the end user, but it limits the ability for an app to actually do anything in the background.
Many custom ROMs build in a "kill all" button in the recent apps view. It's really not necessary though. You've identified an application that has this issue, so just make sure to kill that one app when you're done with it. Again, most applications won't have that problem.
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Click to collapse
+1. I had just read a lot of silly things and ur comment relaxed me a bit. Blame a PHONE because some apps keep the phone awake... this is crazy, people should have a bit of experience before posting in this forum with so much arrogance.

This might help...
https://www.youtube.com/watch?v=JmvCpR45LKA
Sent from my Nexus 4 using Tapatalk 4

badboy47 said:
This might help...
https://www.youtube.com/watch?v=JmvCpR45LKA
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
That helped me so many times till I understood it....

The place to go, to get a definitive understanding of wakelocks is here:
http://forum.xda-developers.com/showthread.php?t=1179809&highlight=betterbatterystats
This is the thread for BetterBatteryStats, which is really all you need to troubleshoot why your device doesn't sleep enough.
Also, look at Greenify, which hibernates the apps you tell it to, a pretty unique trick.
http://forum.xda-developers.com/showthread.php?t=2155737&highlight=greenify
And as a last suggestion (frowned on by the purists at the betterbatterystats thread, but I find it really useful) use DS Battery Saver Pro, which will switch off wifi and reconnect every 10 minutes, amongst other tricks.
http://forum.xda-developers.com/showthread.php?t=2030696&highlight=ds+battery+saver
As an aside, I hear that iOS7 has impressed its user base with all sorts of hidden options which stop the phone resting, so maybe it's just a question of complexity . The good news is that, especially with the knowledge that is shared in betterbatterystats, it won't take you long to troubleshoot what your problems are, and the other 2 apps which will resolve your issues are pretty straightforward to use.
There are free versions I recall in the first post of these threads, I use the Pro version of DS Battery Saver since I prefer to configure my own profile.

Thank you everyone for replies.
I have not rooted the phone, so Greenify is no option for me, not really up to going through all rooting and ROM installing process in order to maybe succeed in solving the issue.
Specifically talking apps that leave speaker ON (It keeps hissing) and keeps phone awake, if you do not close them are following : Asphalt 8, Need For Speed Most Wanted.
The thing is I am not sure who to blame really, yes there are many apps that work normally and don't cause these issues, but then again why is the keeping the phone awake allowed in the first place, downloaded apps that would need to work that way should need special permissions. I understand there might be apps that want to keep ON/playing something after you have quit them, but if that's the case, then user should be able to deny certain permissions to prevent this from happening. The OS is complex enough, why not give even more options then or just this one at least.
Not sure how other people manage with this problem, I can't find anyone mentioning anything about Asphalt 8 and Android having this problem, people just deal with that they have battery draining to 0% in 5 hours? I know many people with smartphones 75% barely ever closes any programs from multitasker, most of them are iPhone users though. But how do they manage to live with their phone if they have this. I did manage to find people complaining about Pou draining battery, solution was to just uninstall the app, ridiculous.
I can't be the only one having these issues.

Well, the Android "style guide" has the back button as the exit function, so instead of leaving it running in the background, you may want to try backing all the way out.
It's been about a year since I played Asphalt (6 I think it was), but I vaguely remember it had an exit button which explicitly closed down the app.
Could be worth trying that. All the same, install the free xda edition of BetterBatteryStats (in the first post I think) and then look at the partial wakelocks, you'll quickly see what is stopping the phone sleeping.

paul c said:
Well, the Android "style guide" has the back button as the exit function, so instead of leaving it running in the background, you may want to try backing all the way out.
It's been about a year since I played Asphalt (6 I think it was), but I vaguely remember it had an exit button which explicitly closed down the app.
Could be worth trying that. All the same, install the free xda edition of BetterBatteryStats (in the first post I think) and then look at the partial wakelocks, you'll quickly see what is stopping the phone sleeping.
Click to expand...
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It really is like that, this fixes a small part of this issue! If you exit the game using the back button, the application closes the resource, but leaves it available at the multi task panel.
But, when I had iPhone, I could play the game, lock the screen, go home, for example, and continue where I left off, no battery drainage or anything. Only when you fill up the RAM memory it stops least recent processes.
Often it is very annoying to tap multiple times the back button (Sometimes even on screen you have to press quit multiple times (Quit current game & quit menu)) until you get to exit the application. And you can't continue where you left off, if you do that.
What the most bothers me about this is if I suddenly have something urgent and I don't turn off the application, my phone could drain a heavy amount of battery percentage till I remember to close them or check something on the phone/continue where I left off.

raptir said:
You're blaming the OS for the behavior of an app made by a bad developer. The vast majority of applications will not do that. iOS avoids that by limiting the cases in which an app is allowed to run in the background. You can argue that it's a superior solution for the end user, but it limits the ability for an app to actually do anything in the background.
Many custom ROMs build in a "kill all" button in the recent apps view. It's really not necessary though. You've identified an application that has this issue, so just make sure to kill that one app when you're done with it. Again, most applications won't have that problem.
Click to expand...
Click to collapse
luiseteyo said:
+1. I had just read a lot of silly things and ur comment relaxed me a bit. Blame a PHONE because some apps keep the phone awake... this is crazy, people should have a bit of experience before posting in this forum with so much arrogance.
Click to expand...
Click to collapse
Guys, this isn't the only issue with the OS. I had bad battery drainage from Wi-Fi & mobile network location setting also. I have various Google app problems, also with drainage, freezing and lag with Google Chrome, Google+ keeping phone awake. I would consider that as a property of Android OS, because the software was already installed when I got the phone. Chrome is the default and only internet browser in the beginning and it should work properly.
So I am not sure who to blame, maybe the developers can't find a workaround from the problem, because the OS is not behaving correctly, and I don't think that it's inappropriate to blame also the OS, since even the default apps and settings have problems same as some apps do.

I have used Chrome daily since it was first released for Android and have never had any real issues with it. Occasionally it will give me a problem where I need to restart the app but that's probably about once a week. Google+ should only keep the phone awake if you have it set to upload your photos automatically, and even then there's a setting to force it to only do the uploads when on the charger.
I think the key issue is that you're used to an OS that does not involve any thought from the user. I'm not saying that's a bad thing, but it's a distinctly different approach from Android. Apps are allowed to run when the phone is asleep because that can provide additional functionality. I'm sure you wouldn't complain if Pandora was playing music and thus running when the phone was asleep. And that would hit your battery hard. iOS only allows applications to run under very specific conditions, thus limiting what they can do but making sure you don't end up with any "runaway" applications. Android puts the responsibility on the developer to make their app handle battery life well and on the user to make sure they're using decent applications.
Things like the mobile network and WiFi location are used by Google Now to provide location-based data. If you would rather have the improved battery life, turn Google Now off. Some of us would rather have the functionality, but you have the option to disable it.
Keep in mind also that the Nexus 4 just doesn't get as good battery life as the iPhone 4 or newer.

raptir said:
I have used Chrome daily since it was first released for Android and have never had any real issues with it. Occasionally it will give me a problem where I need to restart the app but that's probably about once a week. Google+ should only keep the phone awake if you have it set to upload your photos automatically, and even then there's a setting to force it to only do the uploads when on the charger.
I think the key issue is that you're used to an OS that does not involve any thought from the user. I'm not saying that's a bad thing, but it's a distinctly different approach from Android. Apps are allowed to run when the phone is asleep because that can provide additional functionality. I'm sure you wouldn't complain if Pandora was playing music and thus running when the phone was asleep. And that would hit your battery hard. iOS only allows applications to run under very specific conditions, thus limiting what they can do but making sure you don't end up with any "runaway" applications. Android puts the responsibility on the developer to make their app handle battery life well and on the user to make sure they're using decent applications.
Things like the mobile network and WiFi location are used by Google Now to provide location-based data. If you would rather have the improved battery life, turn Google Now off. Some of us would rather have the functionality, but you have the option to disable it.
Keep in mind also that the Nexus 4 just doesn't get as good battery life as the iPhone 4 or newer.
Click to expand...
Click to collapse
I have never had a OS that I am fully satisfied with, that is normal, but I am always very aware for issues, always scanning for issues, I really hate that about myself, I am a perfectionist, I will not calm down until I get everything just the way I think it should be... So that makes up very difficult relations with any software I use, too bad for me.
Android apps do have more functionality, more freedom than iOS, and I very much appreciate that. BUT if that functionality results in 90% to 0% in 3 hours, when you forget to turn off 1 app after using it... please, I feel like it's a duty to take care of my smartphone, close app after you are done or the phone will die, and you will be left without a phone for the entire day.
I don't like that instability when you can make 1 thing wrong and it all goes to pieces, not when there are people using other phones with almost the same functionality and no problems like that.
No matter who I have to blame this on, I have this issue and it is because of Android & because of the developer of the app.
It's very sad, I really want Android to be more stable with this

Yukicore said:
It's very sad, I really want Android to be more stable with this
Click to expand...
Click to collapse
There are hundred millions of Android users, we don't all gets wakelocks. I don't have this problem and my phone is stable. Once you are using Android, you are no longer special and pampered in a walled garden like iOS users.
If you have battery drain due to Google services, see here: http://forum.xda-developers.com/showthread.php?t=2385843
I suggest doing a factory reset and not install crap apps like anything by Gameloft, just play them on Apple devices. If you gets a wakelock, make a shortcut on your desktop to Apps and check on what apps are running in the background, one of the app in the list could be the issue.
I know you don't want to root, but I suggest do it anyway and install Greenify, hibernate any apps you don't want autostarting when you boot up the phone. Watch out for apps that both runs in the background and ask for too many permissions. I know there is an app that limit the maximum app that can run in the background, but I don't know the name, you can set it in the phone's Developer mode, but it doesn't persist on reboot.

Maybe the difference is like moving from an automatic car (iOS) to a manual (Android).
At least before "multitasking" arrived to iOS, an app no longer in the foreground was effectively exited. Android's memory management is much more complex than that, and apps are kept in memory until a new app requires the RAM being held by a previous one.
There is a clear advantage to this since apps "reopen" instantly, but if you're not careful there could be continued drain from apps still open but not in the foreground.
Incidentally - I don't follow Apple closely - iOS7 has been slated by users for the scenario you describe, I believe!
Google's apps offer all sorts of wonderful location-based features, for which the phone inevitably needs to know its location. Coarse location (via triangulation of radio towers) is not a problem, but "fine" requires the GPS to be used, and that does drain the battery.
So you need to consider whether you want all that location based stuff from Google.
Wifi is also a big drain, and that is why I get my phone to switch on every 10 minutes via DS Battery Saver. The upside is that the phone sleeps regularly, but the downside is that Whatsapp messages etc don't arrive immediately.
As you can see, Android offers you the ability to choose to be uber-connected/always on, or to have a better battery consumption. Since each individual is different, you can choose what is important to you.

I just had that drain second time happening. I don't remember how I left that stupid game, but I ended up with 2% battery and phone turned off.
I think I exited using the back button. What the hell.

Pou is known to kill your battery.
http://forums.androidcentral.com/google-nexus-4/253092-media-server-draining-my-battery.html
http://answers.yahoo.com/question/index?qid=20130606043957AA9Tq7N
Since it's a virtual pet game the developer probably did not code it to close when you hit the Back button, so you need to kill it through Recent Apps. Or just uninstall it.

raptir said:
Pou is known to kill your battery.
http://forums.androidcentral.com/google-nexus-4/253092-media-server-draining-my-battery.html
http://answers.yahoo.com/question/index?qid=20130606043957AA9Tq7N
Since it's a virtual pet game the developer probably did not code it to close when you hit the Back button, so you need to kill it through Recent Apps. Or just uninstall it.
Click to expand...
Click to collapse
This is bad... Now it is developers fault, but why on earth should Android OS allow this kind of behavior on any app... This is not a simple background service, this was running fully when the screen was off. 2-4 hours is the screen on time averagely I get, 3.5 hours without screen on, it's damn fast draining.

Yukicore said:
This is bad... Now it is developers fault, but why on earth should Android OS allow this kind of behavior on any app... This is not a simple background service, this was running fully when the screen was off. 2-4 hours is the screen on time averagely I get, 3.5 hours without screen on, it's damn fast draining.
Click to expand...
Click to collapse
We've already been through this. You're fine with your phone's music player running in the background when the screen is off, right? It's the exact same behavior, just that Pou uses more resources and has no reason to be running. Apple puts heavy restrictions on what an app can do in the background (playing music being one of the only exceptions). Google leaves it up to the developer and user to manage it.
If you think that is a problem with the OS, I really recommend you go back to the iPhone. Not being mean or anything, but you clearly either do not understand the differences in philosophy between the two operating systems or you understand it and prefer the iOS way.

raptir said:
We've already been through this. You're fine with your phone's music player running in the background when the screen is off, right? It's the exact same behavior, just that Pou uses more resources and has no reason to be running. Apple puts heavy restrictions on what an app can do in the background (playing music being one of the only exceptions). Google leaves it up to the developer and user to manage it.
If you think that is a problem with the OS, I really recommend you go back to the iPhone. Not being mean or anything, but you clearly either do not understand the differences in philosophy between the two operating systems or you understand it and prefer the iOS way.
Click to expand...
Click to collapse
You said that user and developer can manage resources of apps, how can a user manage them? Can I fix this specific problem myself somehow?

Wakelocks

Well, I've been searching for days on this so hopefully someone here has some insight on this.
I'm having some pretty bad wakelock issues, and I can't figure out what's causing this. I'd rather not root the device, since I have Nexus Protect and don't want to risk voiding that, so the tools I'm left with to figure out what's causing this are a bit primitive.
I read somewhere that Bluetooth scanning can cause wakelock issues like this, so I turned that off yesterday. So far today, the results are the same.
Screenshots: http://imgur.com/a/HltQ7
As you can see, I've barely been using the thing at all, and yet it's been awake almost constantly since I left for work this morning. As far as widgets, all I'm using are Google Clock, Google Calendar, and Weather Timeline. I have multiple Google accounts connected to the phone, but only one with synced items (and only what's absolutely necessary. Naturally, I've cleared app cache and system cache and rebooted, and I do not have Facebook or Messenger installed.

To be fair, we need a little more info including the build you're on. The changes you're making are small and clearly not changing anything for you. The multiple accounts are a possibility, and you could try syncing them and then turning sync off, or deleting them and beginning again. You could try booting in safe mode and testing it that way.
Personally, I'd back up the device, unlock the bootloader, flash the latest factory image and set up again (which is often el goog's advice) to see if the issue recurs. If it does you relock the bootloader and get onto Nexus Protect.

Arcendus said:
Well, I've been searching for days on this so hopefully someone here has some insight on this.
I'm having some pretty bad wakelock issues, and I can't figure out what's causing this. I'd rather not root the device, since I have Nexus Protect and don't want to risk voiding that, so the tools I'm left with to figure out what's causing this are a bit primitive.
I read somewhere that Bluetooth scanning can cause wakelock issues like this, so I turned that off yesterday. So far today, the results are the same.
Screenshots: http://imgur.com/a/HltQ7
As you can see, I've barely been using the thing at all, and yet it's been awake almost constantly since I left for work this morning. As far as widgets, all I'm using are Google Clock, Google Calendar, and Weather Timeline. I have multiple Google accounts connected to the phone, but only one with synced items (and only what's absolutely necessary. Naturally, I've cleared app cache and system cache and rebooted, and I do not have Facebook or Messenger installed.
Click to expand...
Click to collapse
Unfortunately you're not going to be able to properly investigate what's causing the wakelocks without root. Any accurate app that can investigate this, like BetterBatteryStats, requires root.

so it seems that google search is the number one thing killing your battery. Try disabling that for a day or two and see how your battery fairs.
Like others have said, you can't really find out what specifically is causing the wakelock without root. Rooting your nexus will not affect your nexus protect warranty. You can restore it to stock very easily by flashing system in fastboot

Well I bit the bullet and rooted my device today, so I'll be able to take a closer look at this after normal use tomorrow - but currently I'm thinking it could be due (at least in part) to my workplace WiFi configuration. On my home network the wakelocks are pretty normal, but whenever I'm on the workplace WiFi it's held awake constantly. Upon disabling WiFi I'm seeing FAR more reasonable Awake frequency/times: http://imgur.com/dYstikJ

Amplify, greenify and autostarts, sort of deals with everything.
---------- Post added at 06:09 PM ---------- Previous post was at 06:08 PM ----------
Also I wouldn't leave bbs or battery monitors on your phone when you're not wake lock hunting. As they tend to burn battery themselves

dladz said:
Amplify, greenify and autostarts, sort of deals with everything.
---------- Post added at 06:09 PM ---------- Previous post was at 06:08 PM ----------
Also I wouldn't leave bbs or battery monitors on your phone when you're not wake lock hunting. As they tend to burn battery themselves
Click to expand...
Click to collapse
BBS doesn't sap battery at all. Well, not enough to matter anyway.

Heisenberg said:
BBS doesn't sap battery at all. Well, not enough to matter anyway.
Click to expand...
Click to collapse
That's actually not true
It definitely had an impact.
My point is, don't leave it on there is you've found the issue. There is no point.

dladz said:
That's actually not true
It definitely had an impact.
My point is, don't leave it on there is you've found the issue. There is no point.
Click to expand...
Click to collapse
Show me some corroborating data on this and I'll eat my words. I agree that there are some battery apps out there that waste a lot of resources (I'm looking at you, Cheetah Mobile), but BBS is not one of them.

dladz said:
That's actually not true
It definitely had an impact.
My point is, don't leave it on there is you've found the issue. There is no point.
Click to expand...
Click to collapse
Just to further clarify what I'm saying, the app doesn't run in the background, it only runs when you open it and simply retrieves the data that is already generated at a system level. From the OP in the BBS thread:
BetterBatteryStats is calling the "batteryinfo" service of Android to retrieve data already lying there without generating overhead. Since Kitkat Google has revoked the permission for normal apps to access these stats (without valid reasons IMHO). You can read more about that here.
Click to expand...
Click to collapse

Heisenberg said:
Show me some corroborating data on this and I'll eat my words. I agree that there are some battery apps out there that waste a lot of resources (I'm looking at you, Cheetah Mobile), but BBS is not one of them.
Click to expand...
Click to collapse
Mate I will have to do some looking into it. I already removed the application as I saw it burn down battery more as it was installed, why would I say it if it wasn't true lol, how do I benefit here?
I bought the app. Its not an apk and I'm not trying to be disrespectful here either but I saw drain. It's going to be a pain and I have very little time anyway in my life but ok. I'll get you some proof.
Actively collaborating data on that level has to have an implication on power, if it's symptoms reading a file then why do we need the app? Why not just read the file ourselves?
That's not me suggesting it, that's just common sense, surely you can see that prior to me proving it.

dladz said:
Mate I will have to do some looking into it. I already removed the application as I saw it burn down battery more as it was installed, why would I say it if it wasn't true lol, how do I benefit here?
I bought the app. Its not an apk and I'm not trying to be disrespectful here either but I saw drain. It's going to be a pain and I have very little time anyway in my life but ok. I'll get you some proof.
Actively collaborating data on that level has to have an implication on power. That's not me suggesting it, that's just common sense, surely you can see that prior to me proving it.
Click to expand...
Click to collapse
See my other reply. The app only runs when you open it and it refreshes then and only then, no running in the background. It's pulling existing data that's already generated by the OS. Sure, it uses power, I'm not denying that (any app has to use power). What I'm saying is it only uses power when you're actually in the app, nowhere near enough to have a noticeable impact on battery life.

Heisenberg said:
See my other reply. The app only runs when you open it and it refreshes then and only then, no running in the background. It's pulling existing data that's already generated by the OS. Sure, it uses power, I'm not denying that (any app has to use power). What I'm saying is it only uses power when you're actually in the app, nowhere near enough to have a noticeable impact on battery life.
Click to expand...
Click to collapse
I don't deny what you're saying. All I know is it uses power mate. Why have something running when you've anyway used it to fix what you can?
Amplify does a better job on its own.

dladz said:
I don't deny what you're saying. All I know is it uses power mate. Why have something running when you've anyway used it to fix what you can?
Amplify does a better job on its own.
Click to expand...
Click to collapse
It doesn't claim to save any power, it's simply a tool for investigating power usage. I run it constantly, I use it to check how often certain apps are waking, or to check screen-on time and the amount of time the phone is awake while not actually in use. The point I'm making is it's virtually impossible for this app to use an amount of power that would have a noticeable impact on battery life, because of the fact that it only runs when you actually open it. You open it, it gathers existing data that has already been collected external to the app, you view the data, you close the app, it's no longer running.
Amplify is a completely different app, and it actually does have to run in the background, so if anything Amplify would use significantly more power than BBS.

GApps on Rooted LG V20

Does anybody know if we are able to flash any other versions of GApps on the rooted LG V20?
My V20 is from AT&T and since day one it has had terrible battery life. Where I was able to use my Note7 or Droid Turbo all day and still have battery left, the V20 eats the battery charge like Sally Struthers in a See's Candy warehouse. I mean, I have to charge this thing at least 2 times a day when I use it to search the web or any battery intensive purposes. I never had this problem on any other phone. I have been trying to find ways to improve my battery. I used Rom Toolbox Pro to disable all kinds of stuff, and it worked great, until my phone started Grand Mal seizing giving me the Google Play Services has to close notifications, which I then had to factory reset just to get my phone working properly again.
I would like to try flashing a minimal version of GApps that pretty much just has the play store and play store services. Are we able to do this on our V20's without having any issues? If you have any input at all I would really appreciate it.

IMHO it must be an app or two you have installed draining your battery like that. On a full charge I can a whole day and a little in to the next. I am a heavy user too. Are you blasting the brightness at 100% all the time? If so auto brightness will help a little. Go in to setting and see what is using that much drain

tnick84 said:
IMHO it must be an app or two you have installed draining your battery like that. On a full charge I can a whole day and a little in to the next. I am a heavy user too. Are you blasting the brightness at 100% all the time? If so auto brightness will help a little. Go in to setting and see what is using that much drain
Click to expand...
Click to collapse
I was thinking it might be something I installed, as well. But I can't seem to pinpoint any apps that might be causing the battery drain. I keep the screen on auto brightness like you mentioned so it shouldn't be the screen. GSam almost always shows the Android System and Kernel (Android OS) at the top of the list of battery-draining apps. I love the phone, I just cannot figure out what is going on. I mean, I am not doing anything different than I have on my previous phones, and the V20 seems to be working fine. I thought maybe it is something with Nougat. I will gladly post some pics of app usage or data if it might help figure this problem out.

nikktrikk said:
I was thinking it might be something I installed, as well. But I can't seem to pinpoint any apps that might be causing the battery drain. I keep the screen on auto brightness like you mentioned so it shouldn't be the screen. GSam almost always shows the Android System and Kernel (Android OS) at the top of the list of battery-draining apps. I love the phone, I just cannot figure out what is going on. I mean, I am not doing anything different than I have on my previous phones, and the V20 seems to be working fine. I thought maybe it is something with Nougat. I will gladly post some pics of app usage or data if it might help figure this problem out.
Click to expand...
Click to collapse
What rom are you on? Are you on stock white theme? I'm running a dark theme, which can help save a little juice. I'm also running as many team blackout apps as I can (many Google apps) to avoid all the whiteness. Just throwing out some ideas.

tnick84 said:
What rom are you on? Are you on stock white theme? I'm running a dark theme, which can help save a little juice. I'm also running as many team blackout apps as I can (many Google apps) to avoid all the whiteness. Just throwing out some ideas.
Click to expand...
Click to collapse
Interesting! I have never heard of Team Blackout Apps, they look pretty nice! Yes, I am on the stock ROM just the way it comes. I haven't changed anything at all. I have barely installed any apps just to see if I can find what is causing the battery to drain. Are there any other ROMs that work with the AT&T variant of the LG V20? It seems like they haven't made any yet for the AT&T V20. I am still waiting for Xposed to be released that is compatible with nougat so I can use Amplify.

nikktrikk said:
Interesting! I have never heard of Team Blackout Apps, they look pretty nice! Yes, I am on the stock ROM just the way it comes. I haven't changed anything at all. I have barely installed any apps just to see if I can find what is causing the battery to drain. Are there any other ROMs that work with the AT&T variant of the LG V20? It seems like they haven't made any yet for the AT&T V20. I am still waiting for Xposed to be released that is compatible with nougat so I can use Amplify.
Click to expand...
Click to collapse
I don't think there are any roms for AT&T variant atm. I did see an AT&T user flashed the stock deodexed rom by tilde88 in rom section. Not sure of all the details though. I'm assuming you would lose some functionality...would need to flash stock kernel as well.

What is your leading source of battery drain under system usage?

tnick84 said:
I don't think there are any roms for AT&T variant atm. I did see an AT&T user flashed the stock deodexed rom by tilde88 in rom section. Not sure of all the details though. I'm assuming you would lose some functionality...would need to flash stock kernel as well.
Click to expand...
Click to collapse
Yeah definitely, I think it is a little bit too early, for me at least, to expetiment with a deodexed ROM. But I know there will be some awesome developments coming out soon. I was so happy to see that a root was figured out for the V20 so quickly after it was released. Until then, I will keep experimenting with the stock ROM.
Swizzle82 said:
What is your leading source of battery drain under system usage?
Click to expand...
Click to collapse
Hi Swizzle82, thank you for the reply. It is kind of difficult for me to pinpoint what the leading source of battery drain is because the apps seem to bunch all detected processes and wakelocks together. I know that Call Services & Android System show up on top a lot of the time, but since I factory reset the phone today, the stats are minimal compared to what I previously had. WeChat also uses resources, but I used that app all the time on my Note7 and previous phones, even more than I do now, and it never caused a problem. I attached some screenshots from GSam, BetterBatteryStats, Wakelock Detector, and CPU Spy Reloaded., I don't know if they will help, but just switching between those few apps and taking some screenshots over the span of 6 minutes, my battery percentage dropped from 79% to 76%.

nikktrikk said:
Yeah definitely, I think it is a little bit too early, for me at least, to expetiment with a deodexed ROM. But I know there will be some awesome developments coming out soon. I was so happy to see that a root was figured out for the V20 so quickly after it was released. Until then, I will keep experimenting with the stock ROM.
Hi Swizzle82, thank you for the reply. It is kind of difficult for me to pinpoint what the leading source of battery drain is because the apps seem to bunch all detected processes and wakelocks together. I know that Call Services & Android System show up on top a lot of the time, but since I factory reset the phone today, the stats are minimal compared to what I previously had. WeChat also uses resources, but I used that app all the time on my Note7 and previous phones, even more than I do now, and it never caused a problem. I attached some screenshots from GSam, BetterBatteryStats, Wakelock Detector, and CPU Spy Reloaded., I don't know if they will help, but just switching between those few apps and taking some screenshots over the span of 6 minutes, my battery percentage dropped from 79% to 76%.
Click to expand...
Click to collapse
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.

Swizzle82 said:
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.
Click to expand...
Click to collapse
That sounds like a good idea to try. I will do this today since I already factory reset it yesterday. I would rather do it now before I get further into using it again. I have not heard about this until you mentioned it so maybe there is an issue with app transfers with the V20 causing it. The battery does seem to drain less than before, but it seems like there are still some issues. Thank you for the suggestion!

nikktrikk said:
That sounds like a good idea to try. I will do this today since I already factory reset it yesterday. I would rather do it now before I get further into using it again. I have not heard about this until you mentioned it so maybe there is an issue with app transfers with the V20 causing it. The battery does seem to drain less than before, but it seems like there are still some issues. Thank you for the suggestion!
Click to expand...
Click to collapse
If you followed did the dirtysanta method, make sure you flash the Konverged kernel for the H918. Or Tilde88's 5.1 kernel for the H918. It worked wonders on improving battery life. Also make sure you disable Lookout - that drains a lot of battery it seemed to me at least. I usually get about a day and a half of battery life when I use my normal amount (which is honestly quite a bit).
Twisted

twistedvip said:
If you followed did the dirtysanta method, make sure you flash the Konverged kernel for the H918. Or Tilde88's 5.1 kernel for the H918. It worked wonders on improving battery life. Also make sure you disable Lookout - that drains a lot of battery it seemed to me at least. I usually get about a day and a half of battery life when I use my normal amount (which is honestly quite a bit).
Twisted
Click to expand...
Click to collapse
Okay, thanks for letting me know! I have not even looked at those kernels thinking they weren't cross compatible with H910. I am going to try it right now with the dirtysanta method. I will disable Lookout, as well. There are a ton of apps that I never use that drain the battery. I will let you know how it goes :good:

Did you own a V10 or other Lg phone prior?

Swizzle82 said:
Did you own a V10 or other Lg phone prior?
Click to expand...
Click to collapse
No, I had the Note7 before getting the LG V20. Before that I had a Note 4 and a Droid Turbo. This is my first LG phone and I really do love it. I actually like it more than the Note7, the only problem I have is the battery. I do think that factory resetting and manually installing the apps instead of restoring them will help, and using the Konverged kernel seems promising, from what I am reading.

nikktrikk said:
No, I had the Note7 before getting the LG V20. Before that I had a Note 4 and a Droid Turbo. This is my first LG phone and I really do love it. I actually like it more than the Note7, the only problem I have is the battery. I do think that factory resetting and manually installing the apps instead of restoring them will help, and using the Konverged kernel seems promising, from what I am reading.
Click to expand...
Click to collapse
Yup I always start fresh and install apps manually anytime I reset my phone. I think it's always nice to start fresh - even if it is sometimes a bit inconvenient to go through all the apps you've installed and choosing which ones to install. Hopefully you get it all sorted out!

Swizzle82 said:
I had android system for a while killing me.. I factory reset and setup every app one by one with no data transfer or anything. Installed every app like it's first install. I charged it til it reached 100 percent, with the phone plugged in, I went to data/system/batterystars.bin and deleted that file and rebooted. It was a long process but it hasn't been an issue since. This was when the phone first came out last month. Never knew which apps data it was but it is gone now.
Click to expand...
Click to collapse
twistedvip said:
Yup I always start fresh and install apps manually anytime I reset my phone. I think it's always nice to start fresh - even if it is sometimes a bit inconvenient to go through all the apps you've installed and choosing which ones to install. Hopefully you get it all sorted out!
Click to expand...
Click to collapse
Okay, I just factory reset the phone, rooted it with DirtySanta, and flashed the Konverged kernel and the phone is NOTICEABLY faster and smoother! This is great! Each time I reset the phone, it had noticeable lag. I just figured it would go away over time, which it did, and that it was because it had to load and download everything since it was fresh. But with the Konverged kernel, it has none of the lag and is silky smooth! Time to manually install the apps I want and disable some stuff I don't need. I will update you guys after I see how the battery is with the new setup Thanks a lot for your help, I really appreciate all the input!:good:

I need your help! I changed the screen cover sensor to off not realizing that I would not be able to turn off the static after rebooting my phone since the sensor is off. Would somebody please post a few screenshots showing how to navigate to the screen sensor settings so I can tap my way there and turn it back on? I am trying but there is no way to tell where to tap with all the static. Thank you!
Nevermind, I fixed it! I finally navigated to the second screen settings and turned it off when the screen is off and that got rid of the static after I turned the screen off then on again. Note to self, never do that again LOL.

nikktrikk said:
I need your help! I changed the screen cover sensor to off not realizing that I would not be able to turn off the static after rebooting my phone since the sensor is off. Would somebody please post a few screenshots showing how to navigate to the screen sensor settings so I can tap my way there and turn it back on? I am trying but there is no way to tell where to tap with all the static. Thank you!
Nevermind, I fixed it! I finally navigated to the second screen settings and turned it off when the screen is off and that got rid of the static after I turned the screen off then on again. Note to self, never do that again LOL.
Click to expand...
Click to collapse
Wow I'm fairly impressed you managed to do all that with the static screen haha - glad to hear it worked out for you in the end.

Get me your stock system.img and boot.img, and I'll make you a modded ROM with a custom kernel!

twistedvip said:
Wow I'm fairly impressed you managed to do all that with the static screen haha - glad to hear it worked out for you in the end.
Click to expand...
Click to collapse
Haha yeah, I never knew something like that could cause such a huge problem. Now I can't seem to find what I did to cause that in the first place. I have been looking through all of the settings and can't seem to find anything that affects the proximity sensor. On top of that, the screen rotation stopped working, it will not rotate when I turn the phone to the side to type. I have toggled all of the motion and second screen settings, calibrated the motion sensor, and nothing is affecting it. When I turn the main screen off, the sensor does not shut off the second screen when I cover it with my finger, and the phone does not recognize when I rotate the screen. I am kind of at a loss on how to fix it.