Develop Bugs

What sort of battery performance are people seeing?

So I've had my Defy a week and I like it, more than I thought I would to be honest.
However, one thing that's bugging me is the battery life.
In their review, Engadget actually highlighted the battery life as one of the big plus-points of the Defy.
They state:
Engadget said:
In our experience, the Defy seems to have stellar battery life, which is relatively hard to come by among Android phones. Not only we were able to consistently make it comfortably through an entire day on a charge, but we were surprised to find that after putting the phone away with about 75 percent charge, it was still on with 21 percent remaining two days later. Granted, it spent most of that time in WiFi calling range (which disables the cellular radio), but many smartphones give up the ghost from 100 percent charge in less time...
Click to expand...
Click to collapse
Now, I'm not using wi-fi calling but I don't think that should excuse or explain the fact that my phone barely lasts a day when at least one other handset has such significantly better battery life.
Anyway, I was just wondering how everyone else's Defys were performing.

Im coming from a vibrant and the battery on this is the best on android so far that i've ever used(g1, mytouch, mytouch 4, vibrant, etc.
Sent from my MB525 using XDA App

If you don't mind me asking though, how long do you go between charges?
As I said, I'm lucky if I make it much more than a day - certainly two days isn't possible.
But I'm not a particularly heavy user, a bit of internet and a few texts here and there but very little in the way of calls, so I kind of feel like I should be getting more out of the handset.
When I check the battery usage, it's quite often ~40% each for 'Mobile Standby' and 'Phone Idle'.
So the vast majority of the drain is just from the phone being on, not from anything I'm actively doing.

Is this your first smartphone? =)
I go a day and a half or so. I'm heavy on web use and playing 'slice it' all day.
for my usage, im THRILLED to have a phone that can still have 30-40% at the end of a long day.
Sent from my MB525 using XDA App

Just try to reboot the phone after fully charged and detached from power. There is an issue with the "suspend" process in some cases (not only on Froyo 2.2) which disappears after rebooting. Mine lasts 2-3 days with average use.
The issue at Google (I am not allowed to post links as a new user )
code.google.com/p/android/issues/detail?id=11126

I can use the web steady for 5 hours, this includes some streaming video, if I start at 100% its down to 10% by then. At work it lasts easily all day but it gets little web usage and maybe an hour of talking. I use battery booster and advanced task killer, my backlight is set at 70%.

With moderate use (some calls, lots of texts, some web browsing) I get 2 days. It needs to be charged at the end of day 2, but I'm happy with it. I don't have any ot the social networking crap on so it's not constantly syncing. I think that may have something to do with it. I keep my backlight way down too.

Battery life? i got defy just a week ago and first impressions are good. You know, in the first days you make yuor phone working a lot, testing all the features, trying new apps from the market (so internet connection always on) , watching some movies, playing 3d games!
So a really heavy use, but power lasts at least 1,5 days. So i think using the phone moderately makes the battery life easily up to 3 days.
Try some task-killer app, and then test the power duration. Some softwares stay in background and keep draining power.

disturkis4u said:
Is this your first smartphone? =)
Click to expand...
Click to collapse
No.
And I don't see what that's got to do with anything.
My battery life seems to be noticeably poorer than what the majority of people here are quoting.
If I were to use the web for 5 hours, there's no way I'd have anywhere near 30-40% of my battery left.
shaftenberg said:
Just try to reboot the phone after fully charged and detached from power. There is an issue with the "suspend" process in some cases (not only on Froyo 2.2) which disappears after rebooting. Mine lasts 2-3 days with average use.
Click to expand...
Click to collapse
Having looked at your link, it sounds as though when that's happening, people can see the Suspend process listed in the break-down of what's using the battery.
I've never seen it listed, so I'm not sure that's the problem here.
xdaid said:
Try some task-killer app, and then test the power duration. Some softwares stay in background and keep draining power.
Click to expand...
Click to collapse
I've got Spare Parts installed and it's set to 'aggressively' monitor and kill processes.
A friend recommended it over the likes of Advanced Task Killer because it's supposed to be better at differentiating between apps that are safe to kill and parts of the core software/system that could cause issues if closed.
I get what you're saying about using the phone more than normal because it's new but in the 8 days since I got it, I've spent 7 at work, so I haven't had that much scope to mess around with it.
I've switched the screen from automatic brightness control and I've disabled the background syncing for facebook, so hopefully that'll make a difference.
If not, since it's just over a week, I'm well inside the 28 days I can have it swapped for being faulty.

Quadrant: 1100 points, Linpack: 6,49 Mflops
Edit: ooops, should read the title more carefully next time.
My defy runs for about 40 hours on one battery charge.

i have to charge mine everyday at night after using it whole day, time to time. Not bad tbh.

A task killer is NOT necessary.
It seems like blur services are push rather than pull which uses much less battery (think blackberry). But im not 100%.
I've set up yahoo, corporate, facebook, and picasa just to test it out and it didn't make much difference in my battery life.
I consistently get a day and a half (unless i play games). Can push to 2 days if i put on airplane mode overnight.
Sent from my MB525 using XDA App

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Found this on a german forum, as you can see, he was not in flight mode. I guess my desire's battery won't last that long.

I can go about one full day with moderate/somewhat heavy usage. Won't last 2 full days though.

disturkis4u said:
A task killer is NOT necessary.
Click to expand...
Click to collapse
People keep saying that but I'm not convinced.
I mean, if I use my browser say and then finish using it and know I won't need it again for a while, why prevent me from actually closing/killing it?
It seems so ridiculously counter-intuitive.
Plus, if it's really not necessary, then why are so many of them being developed?
Even Samsung are producing task managers now for devices like the Galaxy Tab - if it really wasn't necessary, surely one of Google's top hardware partners would know that.

And samsung is so great at making stuff...? Touchwiz??
Also, samsung's task killer does not show inactive or background apps like most task killers do.
What is the harm in the browser being open? It uses no cpu+ this phone has more than enough ram that it doesn't need you to close apps to keep things running smoothly.
It also will not improve your battery if you arbitrarily close an app only to re-open it later and use more processes.
Just my 2 cents on this topic.
Sent from my DEFY using XDA app

disturkis4u said:
Touchwiz??
Click to expand...
Click to collapse
Blur?
They're no Sense, either of them, that's for certain.

Yeah they're nowhere near being that bloated lol
Step666 said:
Blur?
They're no Sense, either of them, that's for certain.
Click to expand...
Click to collapse
Sent from my DEFY using XDA app

Something i already posted in a german forum about my battery life:
2,5h gaming (Zenonia),
3h mobile internet (ICQ, Yahoo-mail, web, market)
2h of activated WLAN and deactivated sleep to copy stuff from pc to Defy
1,5h music (radio)
and 1h (and 6 minutes lol) of phone calls
After that day, i still had 30% of battery.
The maximum i reached were 75 hours including MY normal use with some mobile internet, some texting and 1 or 2 calls...maybe an hour of gaming at most.
I did not charge it first when i got it, because the battery was at 80% already/still and i wanted to play around.
Current running time: 26 hours...i activate plane-mode at night from now on. Low 70s now.
Everything at minimum display brightness (30%?)

Step666 said:
People keep saying that but I'm not convinced.
I mean, if I use my browser say and then finish using it and know I won't need it again for a while, why prevent me from actually closing/killing it?
It seems so ridiculously counter-intuitive.
Plus, if it's really not necessary, then why are so many of them being developed?
Even Samsung are producing task managers now for devices like the Galaxy Tab - if it really wasn't necessary, surely one of Google's top hardware partners would know that.
Click to expand...
Click to collapse
In my opinion, a task killer is absolutely necessary.
All the apps launched keep consuming RAM even if they're not in use. I brought back 106 mb last time i performed a task killing! In most of the cases less ram means worst performances / more work for cpu.

Battery thread

Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Hey.
Turn off background data and automatic account sync. Should save alot on power!
Personally, i wouldnt use a task killer. As ICS already has a task manager integrated.
Hope this works.
Sent from my X10 using xda premium

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Juice Defender is your friend. The ultimate version is worth the money

This post slightly worries me. On the Evo, I spent half the freaking memory trying to keep my battery alive for more than 5 hours.
Future updates on battery life are truly appreciated.

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Your task killer might be the problem. Also, make wallpaper black amd anything else you can as this is oled tech.
I invented cyberspace. You're trespassing.

Maybe you have wifi, bluetooth or your phone is doing lots of downloads. Try to put your phone into 2g + Data= off if you don't use the data, for me it helps a lot

Background data sync ate up a lot of my battery. Apps such as Facebook, twitter, weather apps, weather widgets all typically perform some sort of background sync. You have to go in and disable them.
Avoid task killers, android is usually good enough at managing mutitask.

1. turn dual mode GSM/WCDMA off
2. choose one mode only, preferable is GSM
3. uninstall task killer.

Matcarroll said:
Wow, this nexus is thirsty! Charged it twice today already and now charging again! I was expecting it to be bad but not this bad!
This I'm my first android phone so any tips to increase battery life will be greatly appreciated. I have turned off nfc and also all 3 location/GPS options but didn't change much. I also downloaded a application to kill running tasks etc.
Thanks in advance.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
There are so many things wrong with this post... dunno where to begin :/

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Pretty good if you ask me..
Root the device, download setCPU and create a profile to set the CPU as low as it can go when the screens off

andorreta said:
Maybe you have wifi, bluetooth or your phone is doing lots of downloads. Try to put your phone into 2g + Data= off if you don't use the data, for me it helps a lot
Click to expand...
Click to collapse
I hate when people say this kind of stuff. Having WiFi and Bluetooth on, but not utilizing them, does virtually nothing to your battery. Anytime I'm in my car (80 minutes a day, just for the drive to and from work) my phone is connected via bluetooth *AND* WiFi to my car. At work, I have it connected to WiFi at least 80% of the day (sometimes I use 3G for various reasons). It barely makes a dent in my battery.
If you have WiFi and Bluetooth on but you're not actively using it (and you have it set to not be scanning for new signals all the time), it won't do much to your battery life.

Lower screen brightness levels to a comfortable level.
Sent from my GT-I9000 using xda premium

hotleadsingerguy said:
If you have WiFi and Bluetooth on but you're not actively using it (and you have it set to not be scanning for new signals all the time), it won't do much to your battery life.
Click to expand...
Click to collapse
You're right with your points but probably the op doesn't know how to deactivate wifi scanning he already mentioned that it is his first Android phone.
@op could you probably use your phone like you did before and don't mess around to "improve" the battery life. After a couple of hours take some detailed screenshots of the battery settings menu. It's very important that we can see how long your phone was awake, how long the screen was on, wifi etc on or not. Give us as much information possible. Otherwise we're not able to help you. In addition keep in mind that your battery needs some time until it reaches it's full potential.
Sent from my HTC Desire using XDA App

Firstly - Ignore all the comments suggesting to switch something on or off and to use other Apps.
I got my GN 20 mins after the London Launch and im easily getting 27 hours on a full charge with lots of background data on.
Let your battery fully drain a couple of times then fully charge it.
Also be sure to check in your battery settings (Settings > Battery) to make sure there isnt a particular app thats killing your battery.
Also see if there are lots of open apps in the recent App button, close any that arnt needed.

the_didge said:
Firstly - Ignore all the comments suggesting to switch something on or off and to use other Apps.
I got my GN 20 mins after the London Launch and im easily getting 27 hours on a full charge with lots of background data on.
Let your battery fully drain a couple of times then fully charge it.
Also be sure to check in your battery settings (Settings > Battery) to make sure there isnt a particular app thats killing your battery.
Also see if there are lots of open apps in the recent App button, close any that arnt needed.
Click to expand...
Click to collapse
Only fully drain and charge your battery for calibration purposes. It is not a Nickel-cadmium battery and this is not good for it. I have found that charging it at a lower voltage through USB (my PC or Xbox, not USB connected to wall outlet) will give me more juice throughout the day. I haven't done any tests and cannot confirm these results, it is just a believe between my friends.
for more information on Lithium-ion battery's... Linky >
batteryuniversity.com

1) get rid of that damn task killer.
2) turn off wifi and bluetooth if you're not using them.
3) GPS isn't a big deal, but turn it off if you know never going to use it (you can leave on assisted cell tower GPS).
4) turn your brightness down or use auto-brightness.
Just use it for a few days. because its your first phone you're probably using it a TON. Life will get better once the "newness" wears off and you get into a normal usage pattern.
Do this, and if your battery is still crappy in a few days then look into other options. Don't go installing weird battery saving apps or anything right off the bat.

richmelchr said:
Only fully drain and charge your battery for calibration purposes. It is not a Nickel-cadmium battery and this is not good for it. I have found that charging it at a lower voltage through USB (my PC or Xbox, not USB connected to wall outlet) will give me more juice throughout the day. I haven't done any tests and cannot confirm these results, it is just a believe between my friends.
for more information on Lithium-ion battery's... Linky >
batteryuniversity.com
Click to expand...
Click to collapse
Well, sort of. The first few charges should be full charges (because the initial calibration of the battery sensor takes a few good full charges). Basically, all the way to dead and back up again.
Then do that once per month. Aside from that one time per month, just keep it charged any time you can. Plug it in at every opportunity. When I'm at work at least 80% of the time I have my phone in a dock on my desk. My battery life was 99% on my Atrix 4G when I gave it to my dad 3 weeks ago. My battery life on my iPhone 4 was 97% when I sold it after buying the Atrix.
Heck, my previous Macbook Pro was 2 years old and the battery life was listed as 94%. Lithium Ion batteries are fantastic, if you handle them correctly.

As others have said there's no need for the Task Killer. Just adjust settings to make sure certain apps aren't pulling data too frequently.
My battery stats show 19 hours use with 28% left, with wifi active but set to sleep never when plugged in', phone was used a fair bit during the day also. Its never going to be amazing but IMO its more than acceptable
Sent from my Galaxy Nexus using xda premium

just hope it lasts 24 hours with light use

My top two tips is, go into fb app and enter settings, set it to NEVER update automatically, any time you ooen the app it will still update and it takes a sec or two.
Nr2 is dont use task killers, it will only work your device harder, keep killing tasks that then has to restart from scratch over and over and over again.
Edit, also, if using like weatherbug widget, set that to only update every 4 hours or so, weather dont change thaat much in a day.
Sent from my X10i using xda premium

TIPS for Improving Battery Life

Hey guys, so i've noticed that a lot of people are complaining about their battery lives. There are a few things that I have done which are not too complicated that I think the rest of you should do too (if you haven't done so already). With these steps, i have my brightness almost to the max the entire time, and the battery lasts me most of the day without needing to charge.
1) Calibrate your battery - This first step is a given, and should definitely be done, especially after rooting. You can find steps by searching in the forums for how to calibrate battery.
2) Uncheck "Use Wireless Networks" in the Locations menu in the settings. This is a huge battery hog, if not the biggest on the phone (next to brightness and 4G). If you feel like you need it to use the "Places" app better, then you can either always turn on GPS just when you need to use it, or just search for whatever you want in Google Maps directly. Many ways around this problem.
3) ROOTED USERS ONLY - Get a root explorer, go into /system/apps and move the following apps to a different folder, preferably on the sd card: Socialhub.apk, Mediahub.apk, Sprintzone.apk, SprintID.apk (sometimes called w_sprint.apk). Obviously if you use those apps, dont move them because you'll essentially be deleting them, but from my experience most people don't use them, and they are always just running in the background. Huge battery hogs as well.
- You can also delete the other sprint apps through the usual app removal process if you'd like.
Also, if you use widgets such as Beautiful Widgets, or Minimalistic Text, for time and weather that require Use Wireless Networks for updates, it would be best not to use them. Especially BW, drains a good portion of the battery. There are other alternatives that I feel are just as good, such as a decent looking modded stock digital clock and the genie widget from ICS (Thats what i personally use). They take a fraction of the others and provide the same information.

Very nice tips. I didn't really like media hub and got tired of seeing it.. but the sprint files you mentioned weren't in my folder.. The apps are still there
EDIT.. also can you like me to battery calibration instructions? O didn't even know that was a thing...
Sent from my SPH-D710 using xda premium

You can also freeze those apps if you are rooted. Same results

How do I go about doing that?
Sent from my SPH-D710 using xda premium

In the batch options, scroll down to freeze/thaw section
Dwayneiztheshyt said:
How do I go about doing that?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse

xlGmanlx said:
In the batch options, scroll down to freeze/thaw section
Click to expand...
Click to collapse
In titanium backup.
Sent from my SPH-D710 using xda premium

I am always so surprised to read people with bad battery life. I have a stick phone running all sick items except having root and I well easily get well over a full day on my battery. I plug it in asst the end of the day with 60% battery on a regular and that is after 14-16 hours. GPS always on, brightness on auto, sync what needs to be synced, using the phone as a phone, with Bluetooth at times as well. The only time I lose significant power is when I use Netflix or start running games for an hour or so.
Are people running stock on this or a built ROM? Also, are you running stock kernel with CWM? CWM put my battery into a hole so I went back to stock without CWM, no idea why out would do it though.

Examples of battery life.
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jedwardmiller said:
Examples of battery life.View attachment 814656
View attachment 814658
Click to expand...
Click to collapse
It seems to me like from those pictures that you barely use your phone for other things than making calls. The reason that i can come to that conclusion is because your display battery usage is just so much less than your Android OS, that just means your screen is off for the majority of the day. I'm assuming from that that you're probably an older gentleman who has less use for things like texting and Facebook. Unfortunately, the majority of my communication is through those 2, as well as some other channels.
And to answer your other question, i am running stock rooted without cwm.
Sent from my SPH-D710 using xda premium

Dwayneiztheshyt said:
Very nice tips. I didn't really like media hub and got tired of seeing it.. but the sprint files you mentioned weren't in my folder.. The apps are still there
EDIT.. also can you like me to battery calibration instructions? O didn't even know that was a thing...
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I guess i can just describe it for you, its pretty simple. Just follow the following steps:
1) charge your phone to 100% (if it reaches 100 unplug it then plug it back in, it'll most likely take another 20 minutes to truly reach 100)
2) if you are rooted and have clockwork mod recovery, boot into recovery, and wipe the battery stats. Then continue to the next step. If you are not rooted, dont worry, just go onto the following step anyway.
3) from the market, download a battery calibration app and calibrate it.
4) then use your phone regularly throughout the entirety of its battery cycle (don't plug it in for mini charges until it fully dies)
5) when it dies, recharge it back to a full 100% (don't unplug it before it reaches 100%).
Then you're done.
Sent from my SPH-D710 using xda premium

jedwardmiller said:
Examples of battery life.View attachment 814656
View attachment 814658
Click to expand...
Click to collapse
I refuse to believe your getting 10hours of battery life with moderate emails, calls, txt n social apps running n your battery only dropping to like 80% after 10 hours.
You must not use your phone at all
Sent from my GT-P7510 using xda premium

hijewpositive said:
It seems to me like from those pictures that you barely use your phone for other things than making calls. The reason that i can come to that conclusion is because your display battery usage is just so much less than your Android OS, that just means your screen is off for the majority of the day.
Click to expand...
Click to collapse
I wouldn't jump to that conclusion. By the end of a 16-hour day, I have about 2-hours of screen-time, and my battery is around 50%. I have corporate email on my phone, so it wakes up frequently, and I check my messages all day long.
There's also the issue with Android OS taking up way more of the battery charts than it's supposed to. Most of the time, that bar is 2x longer than my display bar, unless I unplug it and play a game for four or five hours. There is a bug on this phone, that either calculates the Android OS bar improperly, or the phone is genuinely using tons of battery in the background and Android OS is a giant battery drain.
If you hang out on the forums a bit longer, you'll see this pop up pretty often.

trifthen said:
I wouldn't jump to that conclusion. By the end of a 16-hour day, I have about 2-hours of screen-time, and my battery is around 50%. I have corporate email on my phone, so it wakes up frequently, and I check my messages all day long.
There's also the issue with Android OS taking up way more of the battery charts than it's supposed to. Most of the time, that bar is 2x longer than my display bar, unless I unplug it and play a game for four or five hours. There is a bug on this phone, that either calculates the Android OS bar improperly, or the phone is genuinely using tons of battery in the background and Android OS is a giant battery drain.
If you hang out on the forums a bit longer, you'll see this pop up pretty often.
Click to expand...
Click to collapse
lol, I've actually already read those forums before, but the thing is that I just don't think its a bug with those people. The thing is that its simply a balance. If your screen is set to a very low brightness, or just off most of the day, it clearly won't be the main battery drainer, but all that means is that something else will be. Something will always be the main battery drainer, even if its not draining that much.
Maybe it just makes more sense in my head than on here, but I'm pretty sure lol.
Sent from my SPH-D710 using xda premium

YoungAceAtlanta said:
I refuse to believe your getting 10hours of battery life with moderate emails, calls, txt n social apps running n your battery only dropping to like 80% after 10 hours.
You must not use your phone at all
Sent from my GT-P7510 using xda premium
Click to expand...
Click to collapse
lol, you disbelieve all you like, here's another screenshot, from me, to help you come to terms with your issues

That's even better with showing you all his awake time. You are right, I have never wasted my time with Facebook, the internet can live on without my updates, but I do use the phone for corporate email all day as I work remotely and I am on the phone regularly for work. Not sure why you would be getting such bad battery life. I was just trying to help and see if there was anything you could pick up from me that would help with you.

hijewpositive said:
lol, I've actually already read those forums before, but the thing is that I just don't think its a bug with those people.
Click to expand...
Click to collapse
It is in fact a bug. Here is a bug report in Google's bug tracker. Here's another. There's also a very long XDA thread that explains what the Android OS bug actually is, and how it works.
If the lines are proportional, then Android OS is using more power than 2 hours of display time, and I've gone as high as 5 hours and 30 minutes. I've had times when 4 hours of screen time is still less than Android OS. What? That makes no sense.
From the XDA thread:
Same network, same location, same signal strength, same ROM (Changing my font maybe fixed it....) , same wakelocks between them, same background apps running. Not even 5 minutes screen time on the two. The only difference with .14 patched kernels I'm experiencing is that it's not showing up anymore in the stats, but it drains just as much as in the right screen, showing the same CPU state behavior. It's also happening less often, and many say it's not happening at all anymore, but how would they know it it's hidden now?
Click to expand...
Click to collapse
Before that were two screenshots. One of them showed a minimal Android OS bar, while the other had it at 95%. The only difference was the patched kernel. This. Is. A. Bug. Period. High Android OS usage means absolutely nothing. Even after tracking down wakelocks, it will be high or low pretty much at random. Sometimes this is a legit stuck suspend, in which case rebooting is the only fix. Other times, it's just the bad profile. There's no way to know unless you study CPU spy, better battery stats, and possibly Watchdog.
In any case, read that XDA thread that explains what Android OS is. It has very little to do with how much screen time you have.

trifthen said:
If the lines are proportional, then Android OS is using more power than 2 hours of display time, and I've gone as high as 5 hours and 30 minutes. I've had times when 4 hours of screen time is still less than Android OS. What? That makes no sense.
Click to expand...
Click to collapse
wow, thats crazy.

I'm not trying to bash you or say I get bad battery life. I just don't see someone who is taking his or her phone out every 10mins getting emails, and calls, social updates, background syncing is going to get 10hours of battery with just about 95% left.
Maybe if all you do is check emails and take 15 min calls and put your phone back into sleep mode you can probly get that. But even then. I can't say real world usage = 10hr with 95% left. only if you have a extended battery on
From my Samsung GS2 E4GT

This is with an hour of screen time. Admittedly, that's less than half my normal usage, but I was working on my book on the train instead of reading reddit. I'd normally be in the 50's by now with about 2.5 hours of screen time.
Way better than my Eris.
Sent from my SPH-D710 using xda premium

i've found that turning off facebook and twitter sync alone have greatly improved battery life. enough where i dont really have to diable anything else.
i get 24hrs without a charge no problem now. using a rom based off calkulin's EK02 rom.

Stock v20c (AT&T) battery life

I have always felt that stock has offered the best battery life in both standby and active. I re installed 100% stock rooted with this method (thanks reddevil) http://forum.xda-developers.com/showthread.php?t=2052321. I also installed the LG Optimus fast dormancy tool that I found on another XDA forum and can be downloaded here: https://drive.google.com/fe/m?gsessionid=WZD8FPkXXWpJWcFV3xyoCg# and this is what I acheived:
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
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"lightbox_download": "Download",
"lightbox_share": "Share",
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EDIT:The original thread that I found the program to disable fast dormancy is located here: http://forum.xda-developers.com/showthread.php?t=2021248
Note: it works whether or not you have root however it is limited to stock only.
Sent from my LG-P930 using xda app-developers app

Swetnes said:
I have always felt that stock has offered the best battery life in both standby and active. I re installed 100% stock rooted with this method (thanks reddevil) http://forum.xda-developers.com/showthread.php?t=2052321. I also installed the LG Optimus fast dormancy tool that I found on another XDA forum and can be downloaded here: https://drive.google.com/fe/m?gsessionid=WZD8FPkXXWpJWcFV3xyoCg# and this is what I acheived:
View attachment 1695245
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Which battery are you using? Stock or extended?

mattman86 said:
Which battery are you using? Stock or extended?
Click to expand...
Click to collapse
Stock... Sweet huh? I found that by disabling fast dormancy it makes a huge difference in standby battery drain. Unfortunately it only works on stock (all versions). Without it the internal timer is always waking up the phone to check on network status which really isn't needed. I also have gotten away from using the hi-cap so on could use cases
Sent from my LG-P930 using xda app-developers app

How much screen time?
Sent from my LG-P930 using xda app-developers app

Cam R said:
How much screen time?
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
I actually didn't look maybe a little less than an hour. Did surf for a while and paid some bills a few phone calls and the flat spot on the graph was over night so it would say very light use. I usually use my phone a lot more but forgot my charger at work so I was deliberately used it conservatively. The dashes below the graph are the wake times.
Sent from my LG-P930 using xda app-developers app

I'm getting pretty much the same with data turned off (sync for 5 mins only every hour) and not using the phone (2-3 % discharge per hour).
But the thing is, when i actually use the phone (screen, web browsing) it discharges like 30-40% per hour (non-stop use). I feel this is wrong, is it?
Fast dormancy fix applied.

burma said:
I'm getting pretty much the same with data turned off (sync for 5 mins only every hour) and not using the phone (2-3 % discharge per hour).
But the thing is, when i actually use the phone (screen, web browsing) it discharges like 30-40% per hour (non-stop use). I feel this is wrong, is it?
Fast dormancy fix applied.
Click to expand...
Click to collapse
We have almost no adjustments that can be made with screen on. Maybe some tweaking here or there. My biggest concern was power drain with screen off. I set out on this quest when I first got the phone in May and it had Gingerbread and I was draining like 5% / hr with the screen off. CM9 was better but horrible with screen on. I found stock to be the best balance but until I found this FD app it was still draining 1-2% per hour now it's like every 2 - 3 hrs. To get back to your question.... Is it normal? Well yes and maybe it really depends on what you are doing.. Surfing the Web... Not so much. Talking on the phone.... Playing games, etc heck yes that is normal. Try adjusting screen brightness and also an app like juice defender that can dynamically adjust cpu & screen.
Sent from my LG-P930 using xda app-developers app

dude if 24% of ur battery is standby that means you didn't use the phone... i can get 24h on standby too, and i don't run juice defender etc...

KronicSkillz said:
dude if 24% of ur battery is standby that means you didn't use the phone... i can get 24h on standby too, and i don't run juice defender etc...
Click to expand...
Click to collapse
You are missing the whole point of my posting. I was promoting the capability to improve the Nitro's battery life while in standby. We Nitro users can get all the battery life we can get and it is up to you if you want to reduce stand by battery usage by over 50% by using this FD toggle app. I would suggest trying this app for 2 days and use your phone like you normally do then two days without it and see for yourself if you have better battery life. Just a heads up with the app DISABLE must be selected for it to work. Pay special attention to Android System power usage vs Cell Standby power usage. If Android System is more than Cell Standby you will have greater power usage with screen off.
Sent from my LG-P930 using xda app-developers app

my point was i get better battery life than that with no battery saver and no fast dormant tool, i use liquid nitro v6 and callibrate my battery every other week, right now this is what my usage reads.
35% battery remaining.
Usage
36% screen
18% standby
13% android os
8% phone idle
7% android system
5% media server
5% wifi
4% voice calls
3% bluetooth
2% power amp
2% google chrome
Time 1D 0H 55M 45s On battery (still35% remaining)
this battery will still last another 10 hours, total usage will be around 36 hours and i used LESS standby/idle time than you, hense i'm getting far more out of my battery with less mods. im running V20c liquid nitro V6 wind kenerl v3.0 with NO BATTERY APPS (battery apps usually consume as much energy as they save sometims more sometimes less depending on system environment) the stock battery saver on this phone doesn't even turn on until 30% battery so mine hasn't turned on yet, but all it does is disable whatever services u want once phone reaches 30%. if you want to get more out of your battery, just run an efficient rom, calibrate battery properly (ask me if u need info) and be smart with what apps you install.
---------- Post added at 08:04 AM ---------- Previous post was at 08:03 AM ----------
i'm gonna let the battery run under 5% then take a screenshot

The FD tool actually doesn't stay resident it initiates a script that starts at boot but I would be interested in the other tools you have used as it might also work on other OS's as I am playing with 10.1 right now. One word of caution I have been told by devs on this site that battery calibration does more harm than good. Also I haven't been able to run v6 phone keeps rebooting
One more thing what battery are you using and what was your on screen time? Well I guess that's two
Sent from my LG-P930 using xda app-developers app

Swetnes said:
One word of caution I have been told by devs on this site that battery calibration does more harm than good.
Click to expand...
Click to collapse
Yeah these batteries don't like to go all the way to zero. I've owned 9 android devices and have tinkered a lot- the conclusion I've drawn is that you get a nice placebo effect from "calibrating" the battery.

i tested 3 batteries, their life on standby and running video from 100% to 0% and all 3 batteries had better life after calibration, in every test. call me crazy but it seems to work. the only explination i can come up with is that people don't do it properly. i got my battery wipe procedure from this page: i did exactly what he said to calibrate my battery i tested 3 differant batteries and it helped all 3 one of them got 15% more life on video playback and 35% more on stanby after calibration.
http://www.droidxforums.com/forum/droid-x-hacking-guides/14714-how-optimize-battery-life-speed.html
step 3 is battery calibration. EDIT -> this step is found under section 2b Operation System.
note: i am not agreeing with everything on this thread i'm just saying that i tested batteries after using those steps for calibration and they all performed better after.
side note: it would be interesting to test what the battery lifes would be if i was to wipe the battery stats in CWM whent he battery was 50% charge. then let randomly charge it without doing the proper full discharge and recharge, and see if that ruins that battery life. i suspect that it would, and this is why people think it harms the battery, im not an expert this is just an assumption. my testing was not extensive enough to prove this only to prove that the batteries i was using had better life on the roms i tested them on in both video and standby after calibration.

few things i want to point out.
i used my phone more (less standby and more screen usage)
i got longer battery life.
i didn't waste 7% of my battery on juice defender
i used more apps and media tools.
i'm using stock battery and my rom is linked in sig
i had wi-fi or data on 24/7 sometimes both
stock battery.
as i respect other peoples opinions my science background leads me to lead towards strong evidence until i see stronger evidence supporting another theory.

here is battery at 7%
*edit* for the purpose of this test i turned off the stock battery saver (the thing that turns off wifi etc under 30%) at 32% so it never even came on

Battery life

Hi, yestarday, I've recived LG g3, I've switched to it, because my G2 starting to have very poor battery life, like 10 hours with 3h with screen on. I've searched the forum, and I notice that most of u have 5, 6 hours screen with 30 h or more of use, but for me it will be the same as on g2, maaaaby a little bit better, I've restored all my apps, yes, but non of the battery monitor apps showing that some app is using high percentage of battery, let me show some screen shots:
https://www.dropbox.com/s/0iefcko9xqun9uu/2014-10-08 07.22.15.png?dl=0
https://www.dropbox.com/s/l5k5pmwdcy0o8bg/2014-10-08 07.22.22.png?dl=0
https://www.dropbox.com/s/pnwgu7ow4uge593/2014-10-08 07.23.09.png?dl=0
https://www.dropbox.com/s/wvkva95f46x6iid/2014-10-08 07.23.13.png?dl=0
https://www.dropbox.com/s/9bo8erunaq42iec/2014-10-08 07.23.32.png?dl=0
https://www.dropbox.com/s/d6v5qc57ca9xd6d/2014-10-08 07.23.43.png?dl=0
https://www.dropbox.com/s/45kpgxofq6aovhv/2014-10-08 07.23.52.png?dl=0
https://www.dropbox.com/s/98o09tb14oh1f8f/2014-10-08 07.24.57.png?dl=0
https://www.dropbox.com/s/cdc2hdgmmkfbg33/2014-10-08 07.25.06.png?dl=0
Some of them can ba inaccurate, because I've just rebooted my phone, but u see that my phone was on 12 hours (with about 7, 8 hours at night doing nothing and switching to 2G only) I had 2h and 35m of screen, and I didn't play any games, just browsing internet, and I have 46 percent left...
What could causing this poor battery life? It can be some app, that is not showing in battery monitor as a draining one? Or what could be the issue?

You need to root your device and install Better Battery Stats, Xposed Framework, and Wakelock Terminator. Then use bbs to determine which Wakelocks you need to terminate to save battery.
Using this method got my battery drain down to about 1% per 6h of screen off time.
I had to terminate 2 wakelocks to fix my battery life: NlpCollectorWakeLock in Google Play Services, and WifiOffDelayIfNotUsed in Android System.

Nyorbee, I might be wrong, because I own g3 only for a few days, but your battery life looks to be pretty normal to me.
The phone drains really slowly in standby, but 4 hours screen on time during a regular day looks to be quite ok.
Web browsing is particularly taxing on the battery, because of the high res display.
Do not expect the same battery as on G2, from my experience it is lower at least by 1/3 (I upgraded from G2 too).

Gebnar said:
You need to root your device and install Better Battery Stats, Xposed Framework, and Wakelock Terminator. Then use bbs to determine which Wakelocks you need to terminate to save battery.
Using this method got my battery drain down to about 1% per 6h of screen off time.
I had to terminate 2 wakelocks to fix my battery life: NlpCollectorWakeLock in Google Play Services, and WifiOffDelayIfNotUsed in Android System.
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What do you think about that? Everything looks normal to me, but I could be wrong.
I can also test this again with full battery from 0 to 100
Sent from my Stacjonarny using Poczta Polska.

nyorbee said:
What do you think about that? Everything looks normal to me, but I could be wrong.
I can also test this again with full battery from 0 to 100
Sent from my Stacjonarny using Poczta Polska.
Click to expand...
Click to collapse
Yeah, we will definitely need more than 10 minutes of data. You don't need to go from 100 to 0 though. Just get some data from a few hours of screen off time and show me both the kernel wakelock and partial wakelock info.
Edit: The screen off time doesn't have to be all at once. However, the easiest way I found to pinpoint my battery drain was to charge the phone fully just before bed, and unplug it overnight.

My sensor usage also strikes me as very high. Is there anyway to figure out what sensors are keeping the phone awake so much of the time?

I need to see your partial wakelock info as well. Those sensor readings alone don't tell me much. One thing to keep in mind: as you reduce the usage of pointless activities, the usage percentiges for other activities like sensors will rise, but this doesn't mean they are consuming more battery.
I also need to know how much of that time the screen was on/off. If your battery drained 70% in 10 hours of screen off time, it wasn't just your sensors, i can assure you.
You should also consider whether your battery is defective. If you get a good amount of screen on time with a full charge, the battery is probably OK. But if you can drain a full charge in an hour or two of heavy use, you might need to replace your battery.
Good luck!

Also try Wakelock Detector / Greenify - an amazing battery combo

Gebnar said:
I need to see your partial wakelock info as well. Those sensor readings alone don't tell me much. One thing to keep in mind: as you reduce the usage of pointless activities, the usage percentiges for other activities like sensors will rise, but this doesn't mean they are consuming more battery.
I also need to know how much of that time the screen was on/off. If your battery drained 70% in 10 hours of screen off time, it wasn't just your sensors, i can assure you.
You should also consider whether your battery is defective. If you get a good amount of screen on time with a full charge, the battery is probably OK. But if you can drain a full charge in an hour or two of heavy use, you might need to replace your battery.
Good luck!
Click to expand...
Click to collapse
Thanks for the response. Here are the partial wakelocks, captured at the same time. Unfortunately, I didn't capture the "Others" page, but screen on time was about 3 hours. Wake time was considerably higher than screen on time. I've rebooted the phone, in case something weird was going on. I see what these numbers look like tomorrow. If they still seem odd, I'll repost with all the relevant data.

Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10 07.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10 07.05.38.png?dl=0
I've lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than I'm loosing 1 percent every one or two minutes. I'm out of juice in 10 to 12 hours with less than 4 houurs of screen. I'll show u my stats after full battery cycle. And I have two batteries, it's the same, so I guess this is not battery fault...

If your big drain is coming from screen on time, I suggest using gsam battery monitor to determine what's eating the battery. It's easier to read, and I find the stats a bit more relevant for screen on drain.
4% loss over 8 hours of screen off time doesn't seem bad at all, honestly. Its probably improvable, but not necessarily worth the effort.
What are you doing during your screen on time, and what screen brightness? I can burn a full charge in about 3-4 hours of Netflix at full brightness and full volume, but I get considerably more time if I'm browsing the web at minimum brightness.
Edit: I'd you don't use it, i highly suggest disabling or uninstalling google search. It's a prime culprit for wasting battery. I'm not entirely sure, but this might break google now, if you use that. Of course, google now is also a big battery waster.

Are you on WiFi most of the day? I'm just curious, is this a residential AP or are you on a corporate network? We recently upgraded our school to a Meru wireless network, and since then my battery will go from 100 > 50 in 8 hours, versus 100 > 80+ when at home, and at home I use it even more.
When I use BBS at work, the awake time is MUCH higher, and I also have very high sensor use.

This is mine with wireless on and sync on. Rooted and Unbounced. Removed some programs access to internet.
But when i use it it drains like normal.

nyorbee said:
Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10%2007.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10%2007.05.38.png?dl=0
Ive lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than Im loosing 1 percent every one or two minutes. Im out of juice in 10 to 12 hours with less than 4 houurs of screen. Ill show u my stats after full battery cycle. And I have two batteries, its the same, so I guess this is not battery fault...
Click to expand...
Click to collapse
I'm experience a huge draining in battery life just last few days. It was perfectly fine but not anymore. I have tried to factory reset with no luck. I have greenify at work.... I don't know how to read from better batt stats data so I was hoping someone here would be so nice to help me with that.
Here's the log file:
http://goo.gl/xD5HE0
I'm not trying to steel your thread. But since we have the same problem we are search for similar solution....

Is it safe to disabling the services of google? My phone has v10c rom and can at most 3h of screentime.

If you disable Google Play Services you won't be able to use the play store or some other google apps. However, you can use Wakelock Terminator to prevent it from draining your battery.
I have frequently read that some wireless networks can cause more drain than others. If this is what's draining your battery I'm afraid I don't know of any good solution. If you have a good data connection and/or unlimited data, you may get better battery life using that. Have you tried disabling mobile data entirely when you're in Wi-Fi range? I have very limited mobile data, so I keep it off unless I have a specific need for it. I do think this has improved my battery a bit.
Again, i suggest getting gsam battery monitor. It's free on the play store, and offers an easier display of what's eating your battery compared to BBS.
Edit: don't get discouraged if you have some trouble getting your battery life up to spec. It took me three weeks of googling and tweaking to get mine where I'm happy with it.

nyorbee said:
Ok, here are my stats over night:
https://www.dropbox.com/s/ukgyhyxxdw9ca7o/2014-10-10%2007.05.17.png?dl=0
https://www.dropbox.com/s/6zfh9qwffrs2avc/2014-10-10%2007.05.38.png?dl=0
Ive lost 4 percent of the battery doing nothing over maby 8 hours.
But the real problem is when screen is on, than Im loosing 1 percent every one or two minutes. Im out of juice in 10 to 12 hours with less than 4 houurs of screen. Ill show u my stats after full battery cycle. And I have two batteries, its the same, so I guess this is not battery fault...
Click to expand...
Click to collapse
Go to settings/apps/Google play service/uninstall updates.
That did the trick for e

svavartr said:
Go to settings/apps/Google play service/uninstall updates.
That did the trick for e
Click to expand...
Click to collapse
Unless you're using Hangouts...
Sent from my caseless LG G3, because I believe in myself

Use greenify with root and xposed.
Also, I hear that battery is better after a week or two.
Sent from my LG-D851 using XDA Free mobile app

Here are my stats after 80 % of battery waste:
https://www.dropbox.com/s/xj408mf0r9m8ric/2014-10-11 03.31.57.png?dl=0
https://www.dropbox.com/s/b11l2i8mtqle87h/2014-10-11 03.32.07.png?dl=0
I've got just 10 h, and maby hour or hour and a half os screen