Wake lock - phone/rild - Samsung Epic 4G Touch

So I've been working to get as much battery as possible out of my device. Just today, I left my phone with wifi turned off on my desk and sync on, and it idled down only 1% over the course of 2.5 hours. Great, that's almost better than in gingerbread. The minute I turn wifi on and let it idle, my new wake locks are coming from "phone" and process "rild" in GSam. Any thoughts what these ones are?
Sent from my SPH-D710 using XDA

I've tried searching but it's tough to search wake lock and "phone" since it's such a vague term, but seems to be a specific piece of Android that GSam is reporting on.
Rild seems to be a radio interface layer or something related to 3g/4g,but why would that even be attempting to wake the phone when wifi is on? Isn't that portion of data turned off when on wifi?
Sent from my SPH-D710 using XDA

Related

wifi power saving policy

I want my desire's wifi goes to sleep when i lock the screen; therefore i set the option to "after 15 minutes". However, when i woke up several times during last night >.< to find that every time when i turn the screen on, i could see the wifi was still on. what should i do? thanks
WiFi
Try installing Juice Defender from the Market. Works for me.
have the wifi and 3g on off buttons as widgets on one of the home screens, and turn them off easily when not needed, like sleeping, takes a few seconds to reconnect, saves alot of battery for me
Try installing Juice Defender from the Market. Works for me.
Click to expand...
Click to collapse
thanks for the alternative. I wish the generic option can work as it is supposed to
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
have the wifi and 3g on off buttons as widgets on one of the home screens, and turn them off easily when not needed, like sleeping, takes a few seconds to reconnect, saves alot of battery for me
Click to expand...
Click to collapse
thank you for this. just curious, if we have to use widget to control the connection, what is the policy designed for? do I misunderstand the purpose of that or it IS not functioning rightly?
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
the policys are for automated controls, so its meant to turn off after 15 mins or whatever, i keep it as a widget so i can turn them on and off manually as i generally have the wifi or 3g on all the time for gtalk etc
i turn the 3g off when going under ground, sleeping or in a meeting where i wnt be needed it. its easier to do manually then wait for the automated to kick in in my oppinion
TurkzZ said:
the policys are for automated controls, so its meant to turn off after 15 mins or whatever, i keep it as a widget so i can turn them on and off manually as i generally have the wifi or 3g on all the time for gtalk etc
i turn the 3g off when going under ground, sleeping or in a meeting where i wnt be needed it. its easier to do manually then wait for the automated to kick in in my oppinion
Click to expand...
Click to collapse
i do want it automatically turn off the wifi for me. i think my problem is that even i set it to "after 15 mins", the wifi is still on even after 20 or 30 mins after i turn off the screen.
Usually it will stay off until you awaken the screen (phone) by which time it will try to re-enable itself for your convenience.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk
i tried the setting in Nexus as well. In Nexus, it is not "after 15 mins", but "when screen turns off". unfortunately, even you check the wifi status after you turn off the screen 10 mins later, the wifi is still on.. totally no idea how that is supposed to work..
How are you checking whether the WiFi is on? By waking it up again, or seeing whether it is connected to your router?
TurkzZ said:
have the wifi and 3g on off buttons as widgets on one of the home screens, and turn them off easily when not needed, like sleeping, takes a few seconds to reconnect, saves alot of battery for me
Click to expand...
Click to collapse
Yes that works for me to, just a simple quick press on or off and no worries about it using battery life when you dont want it to.

High battery drain

Im trying to find out what is draining the battery on my EVO EVEN WHEN THE PHONE IS WITH THE SCREEN OFF and SUPPOSED to be in STAND BY MODE (using the power button on the phone). I have SETCPU installed to LOWER the CPU to 245/384 when the screen is off.. HOWEVER THE BATTERY SEEMS TO DRAIN .
This afternoon I charged he batter till the green light came on. Made one phone call for 10 minutes and then later another one for 10 minutes.. I do have GPS and BLUETOOTH ALWAYS turned on since I use them all the time WHEN the phone is on for various APPS and my bluetooth earpiece and car adaptor... After those 2 calls the phone is down to almost 70% from 100%...
I have SYSTEM PANEL and also JUICEPOLTTER, SPARE PARTS and MINIFREEMANAGER installed and the programs are set according to what I have been reading on here...
SPARE PARTS tells me the phone has be MORE THAN ONE DAY with sleeping and the most used app is ANDROID SYSTEM. I look at SYSTEMPANEL and UNDER MONITOR HISTORY I can see that even when there is NO DEVICE USAGE, I still have around 15-30% CPU Usage (is this normal?). I also have it set to get email etc automatically.. some every 2 hours and some software every 4-6 hours.
What could be causing the battery drain? What is the best program to use to see the cause?
Im also not 100% sure SETCPU is using the screen off profile.. HOW an I tell this??? Any help would be appeciated...
Have you tried turning GPS off? If it's not actually being used, it won't drain the battery much or at all. However, if you're actually using it, it will.
If you're using navigation, that's a big battery killer, as it does constant GPS + a large amount of data transfer.
One thing you can try is to open Spare Parts, then go to Battery History and choose "Partial wake usage" in the top box. Things with partial wake locks are generally the biggest idle battery users.
Noxious Ninja said:
Have you tried turning GPS off? If it's not actually being used, it won't drain the battery much or at all. However, if you're actually using it, it will.
If you're using navigation, that's a big battery killer, as it does constant GPS + a large amount of data transfer.
One thing you can try is to open Spare Parts, then go to Battery History and choose "Partial wake usage" in the top box. Things with partial wake locks are generally the biggest idle battery users.
Click to expand...
Click to collapse
In partial WAKEUP uage... I see the following:
MAIL
UID 10018
WUNDEREADIO
MEDIA
VOICEMAIL
DIALER
FACEBOOK
that is the orde they are in and I set it to TOTAL SINCE BOOT.
And to answer your question about the GPS.. the only time I use the GPS is to get the correct weather for when I am, YELP and when I am in the car (and PLUGGED IN TO THE CAR MOUNT), GOOGLE NAVIGATION.
I also just Installed a BRIGHTNESS WIDGET and turned off auto-brightness. the widget I am using has 8 brightness settings and double click for auto. I am using currently on the second brightness setting on the widget (it shows little ticks). I am told lowering the brightness from auto will help...
I read in another forum that there was a bug in the Facebook application that was causing the application to refresh its information several times an hour instead of once in a while at specific times.It would use power and bandwith when the phone is even in sleep mode with screen off. They also mentioned that there was a fix already issued for this. I cannot find the link any more to source it for you where I read this.
My stock EVO runs for days with the radios turned off until I need them.
Sometimes, if it ain't broke ...
My evo has been draining fast without all that on and well it's annoying. The only compensation I have is owning 3 batteries.
Sent from HTC EVO 4G via xda app
I haven't seen that Facebook issue. One other thing. In spare parts I have activity management set to aggressive. Could that effect battery life or does that help battery life. I also notice in spare parts that I See programs that I don't use ruining that I didn't see before.
Sent from my EVO4G using Tapatalk.
dahauss said:
In partial WAKEUP uage... I see the following:
MAIL
UID 10018
WUNDEREADIO
MEDIA
VOICEMAIL
DIALER
FACEBOOK
that is the orde they are in and I set it to TOTAL SINCE BOOT.
And to answer your question about the GPS.. the only time I use the GPS is to get the correct weather for when I am, YELP and when I am in the car (and PLUGGED IN TO THE CAR MOUNT), GOOGLE NAVIGATION.
I also just Installed a BRIGHTNESS WIDGET and turned off auto-brightness. the widget I am using has 8 brightness settings and double click for auto. I am using currently on the second brightness setting on the widget (it shows little ticks). I am told lowering the brightness from auto will help...
Click to expand...
Click to collapse
From your list I can only see two things I would kill these programs and wait and see what happens.
WUNDEREADIO
FACEBOOK
Everything else must run. For me Slacker radio kept my EVO on all day long eventhough I was not using it. The new version seems to fix that issue. I am guessing your problem is WUNDEREADIO. I would reboot (resets your battery information) kill Wundereadio. Then go to Settings, About, Battery and monitor your Awake Time vs Up Time. Write down the numbers. Turn off your phone and wait 10 minutes. You should see a gap in time. If so then it is Wundereadio.
Good luck
I think slacker and wunderradio were in the list because I just used them.. wunderradio inst in the list today.. BUT SLACKER is but not in the partial wake.. its in background ...
I changed my backlight setting from auto to using a widget that has 8 brightness settings and it is on the 3rd setting.. I dont know what the AUTO backlight was setting the screen at...
I also adjusted the MINIFREEMANAGER according to some settings I found online..
also I have SPARE PARTS set to AGGRESSIVE... would that have anything to do with it??
Check systempanel first thing when you wake up, but go into monitor, then history, and switch plot to top apps. It will tell you exactly whats been using the battery/cpu when there's been no usage.
As you know, the bt sucks a lot of battery, if you really do use it often, with a bunch of apps, you may want to consider tasker, which can be set up to turn bt on only when your on a call, or using certain apps.
Sent from my blah blah blah blah
Will tasker turn on bluetooth when a call comes in? IE will it let the bluetooth earpiece ring so I can answer it from the bluetooth earpiece?? also can I set tasker so that when get in my car, it will KNOW I am in range of a bluetooth speakerphone and it will turn on BT and connect??
I leave BT on all the time for these reasons....
Looks like tasker wont do anything for me with Bluetooth. The earpieces take too long to connect when a call comes in or I make a call and some even auto answer when they connect which I don't want. I wonder how much battery drain Bluetooth and GPS use if left on but idle?
Sent from my EVO4G using Tapatalk.
Yeah, it would have depended on how long it took to pair. Still try checking the apps through systempanel after a few hours of non-use though. That should help.
And gps doesn't use much until its being used for something, but bt is a constant drain.
Double post
On my old tp2 Bluetooth didn't the battery much. I guess it does on the evo
Sent from my EVO4G using Tapatalk.
OK so I have been running for the past day and 1/2 without blutooth turned on.. I only have 3G and GPS turned on. Still it seems the battery drains faster then it should. I look at SPARE PARTS and it doesnt show anything out of the ordinary on PARTIAL WAKEUP. I have SETCUP to 384/245 when screen off. I do use SYSTEMPANEL to look at what is running and it does show a LOT of stuff such as SLACKER, SOUND HOUND, JUICE PLOTTER, etc... what else can I do for battery life.. I left for work at 8:00 and when I got to work at 8:15, the battery was already at 90% without doing anything....
Aldo how much battery drain does BT take if I leave it on? its a pain to remember to turn it on when I get in the car and turn it off when I leave...

How-To: A possible solution to battery life

So several people have started to notice that "AudioOut_1" wake lock might be polling our batteries unwillingly on our part. So I decided to go out and disable everything that could make sound except for the ringtones and notifications themselves since we all have to have that. This is what I came across...
---------------------------------------------------------------------------
Settings > Sound
Uncheck "Touch sounds"
Uncheck "Screen lock sound"
Profit.
---------------------------------------------------------------------------
Just went an hour without losing 1% battery after I did this.
Some people are claiming they only are losing 1% or less per hour now, just leaving the phone sitting not doing anything. So this may be the temporary fix for the phone being awake when it doesn't need to be.
http://forum.xda-developers.com/showthread.php?t=1389214
I tend to turn those off anyway, just hadn't gotten around to it yet. I went ahead and did it now, along with vibrate on keypress. We'll see how it works!
I've had those off since I started with the phone and I have bad battery life...
MaxCarnage said:
I tend to turn those off anyway, just hadn't gotten around to it yet. I went ahead and did it now, along with vibrate on keypress. We'll see how it works!
Click to expand...
Click to collapse
Yeah it sounds like a really small and ridiculous thing but it just works...
TabsAZ said:
I've had those off since I started with the phone and I have bad battery life...
Click to expand...
Click to collapse
same still 5 hrs of stand by and its half way dead
Tried this and have had excellent idle battery life since I switched both off!
gabster21 said:
Tried this and have had excellent idle battery life since I switched both off!
Click to expand...
Click to collapse
Seems to be 50/50 on this
Ive had those off and I am actually going to run my phone in vibrate only mode for a while and see what results from that.
this has little to no effect on battery life. Look at your Android OS battery consumption before, and after. It will be the same
Biggest solution I've found for battery life is disabling my GPS when I don't need it, and going to CDMA rather than LTE/CDMA. They're still there for me when I want them, but most of the time I don't need them.
Right now I've had the phone off the charger for 4 hours where it was topped off; I'm at 91% now, with moderate use (Google Currents for half an hour, about another 20 minutes total screen-on time doing other dinky things, three texts)
First of all, disabling GPS will have absolutely no affect on your battery life. The GPS is only enabled when an app calls for it, if you don't have Google Maps open, then your GPS won't be engaged.
And turning off the sounds will have little to no affect, it's the vibrating that kills your battery more. Turn off haptic feedback, turn off vibrating notifications, turn off vibrate on key press for the keyboard.
Oh, and staying connected to wifi is much easier on the battery than using data. On wifi your phone doesn't have to keep polling the cell towers for signal
KiNG OMaR said:
First of all, disabling GPS will have absolutely no affect on your battery life. The GPS is only enabled when an app calls for it, if you don't have Google Maps open, then your GPS won't be engaged.
And turning off the sounds will have little to no affect, it's the vibrating that kills your battery more. Turn off haptic feedback, turn off vibrating notifications, turn off vibrate on key press for the keyboard.
Oh, and staying connected to wifi is much easier on the battery than using data. On wifi your phone doesn't have to keep polling the cell towers for signal
Click to expand...
Click to collapse
Turning off GPS works for me because I often use social apps (e.g. Facebook) that engage GPS for their 'check-in' features. It may be a minor thing, but having turned the GPS off, I've seen real results. *shrug*
Also, maybe a gimme for you smarties, but I disabled VZ Backup Assistant.
KiNG OMaR said:
First of all, disabling GPS will have absolutely no affect on your battery life. The GPS is only enabled when an app calls for it, if you don't have Google Maps open, then your GPS won't be engaged.
And turning off the sounds will have little to no affect, it's the vibrating that kills your battery more. Turn off haptic feedback, turn off vibrating notifications, turn off vibrate on key press for the keyboard.
Oh, and staying connected to wifi is much easier on the battery than using data. On wifi your phone doesn't have to keep polling the cell towers for signal
Click to expand...
Click to collapse
Yes what you are saying has made sense in the past for Froyo and GB but we are having some sort of unknown wake lock and this seems to be the biggest one. Ever since I have disabled both of those features my AudioOut_1 wake lock hasn't awakened the phone ONE TIME.
Syn Ack said:
So several people have started to notice that "AudioOut_1" wake lock might be polling our batteries unwillingly on our part. So I decided to go out and disable everything that could make sound except for the ringtones and notifications themselves since we all have to have that. This is what I came across...
---------------------------------------------------------------------------
Settings > Sound
Uncheck "Touch sounds"
Uncheck "Screen lock sound"
Profit.
---------------------------------------------------------------------------
Just went an hour without losing 1% battery after I did this.
Click to expand...
Click to collapse
I have those off already.
Problem is also the Android OS Keep awake time is high.
http://forum.xda-developers.com/showthread.php?t=1387243
Check yours.
Sent from my Galaxy Nexus using xda premium
i turned these 2 settings off before i unplugged the phone.
im now on wifi and about an hour and a 15 minutes off the charger. android OS usage is like 24% and keep awake is like 35 minutes
^ Follow these Directions below
TabsAZ said:
I've had those off since I started with the phone and I have bad battery life...
Click to expand...
Click to collapse
Install Better Battery Stats
http://forum.xda-developers.com/showthread.php?t=1179809
Get your phone down to 50% under normal usage(Not playing with the phone until 50%) just keeping it in your pocket, checking it occasionally..ect
Open Battery Battery Stats
On the Top Drop Down select
"Partial Wakelocks"
and on the Second
"Since Unplugged"
What are the top three? Anything near 1% is minimal and should be ignored for now.
thescreensavers said:
^ Follow these Directions below
Install Better Battery Stats
http://forum.xda-developers.com/showthread.php?t=1179809
Get your phone down to 50% under normal usage(Not playing with the phone until 50%) just keeping it in your pocket, checking it occasionally..ect
Open Battery Battery Stats
On the Top Drop Down select
"Partial Wakelocks"
and on the Second
"Since Unplugged"
What are the top three? Anything near 1% is minimal and should be ignored for now.
Click to expand...
Click to collapse
There are so much stories. People check that already. No solid conclusion.
http://forum.xda-developers.com/showthread.php?t=1387243
On one occasion, the tuna usb otg kernel process woke up for 7 hours, people got mipi_link keep awake high, etc.
Check the above threads.
If you have galaxy Nexus, check your Android OS Keep awake time... That must be high for no reason.
Nexus S users who got the official ICS from Google recently are experiencing the same issue.
http://forum.xda-developers.com/showthread.php?t=1396635
Sent from my Galaxy Nexus using xda premium
I had a custom rom with dreadful battery switched back to the latest stock and have noticed the following: When you have good signal the screen on and awake seem to match up, i only lost 30% in TWO DAYS! then suddenly when i went out to the country side today i lost the remaining 70% in only a few hours seems that when the phone has low signal is is almost ALWAYS awake. I understand that in lower signal areas the phone tries harder to get signal but surly it shouldn't be awake like 90% of the time!
my top 1 was some sort of googlephotos sync service. i might turn off instant upload with google+.
that audioOut_1 was at like 1.2%, turned off these 2 settings before i unplugged from charger
Zoop57 said:
I had a custom rom with dreadful battery switched back to the latest stock and have noticed the following: When you have good signal the screen on and awake seem to match up, i only lost 30% in TWO DAYS! then suddenly when i went out to the country side today i lost the remaining 70% in only a few hours seems that when the phone has low signal is is almost ALWAYS awake. I understand that in lower signal areas the phone tries harder to get signal but surly it shouldn't be awake like 90% of the time!
Click to expand...
Click to collapse
Yep that is another major contributing factor to terrible battery life. My phone will drain VERY slowly in good signal and die rapidly in bad signal.

To turn off, or not to turn off

I am using android 2.3.7 (inc deck gingerbread).
Ok, I just read that the GPS check box (in the setting menu, or quick settings or whatever) does not actually turn the GPS antenna on and off, it only gives permission to the apps (gps-using-apps) whether they can turn the antenna on and off. Therefore, changing the GPS checkbox does not really save any battery. Simply by turning off gps-using-apps the antenna gets shut down, and then the icon disappears. The checkbox is simply there in case I don't want the app to have the ability to turn it on, as needed.
I just was hoping to get confirmation that this is true, yes?
Ok so that leads me to wonder about the Wifi and and Mobile Data check boxes (or toggles, whatever). When my phone is connected to Wifi and the 3G icon disappears, does that mean my phone just automatically turned off the 3G antenna?
I just upgraded to the Pro version of that fabulous little app Automateit... and just wonder if it is pointless to set up a rule to turn off 3G when it is connected to Wifi.
Yep. I would keep GPS ticked on because it does not actually go on unless you have an app (like navigation) open.
- Other programs may use GPS for a few seconds just to read your location, then they turn it off (such as weather programs) - this type of GPS usage really doesn't affect battery.
When you turn WiFi on it does turns off mobile data (3G) and you only have 1x.
GPS is only used when asked by an app or maybe the browser. Wifi on the other hand is always scanning. I recommend turning it off if you don't need it.
Sent from my HTC Droid Incredible
Thanks guys.
I have my wifi scan interval set to scan every 5 minutes. Hopefully that won't waste too much juice. he he
And if that wasn't stingy enough... with Automateit, my GPS, wifi and 3g get deactivated when the screen is off (all activate when screen is on). My battery life is pretty good, even overclocked . When I plugged in, going to bed the other night, I had 85% of my battery remaining (14 hours unplugged).
I should probably stop worrying about battery life.
iowabeakster said:
Thanks guys.
I have my wifi scan interval set to scan every 5 minutes. Hopefully that won't waste too much juice. he he
And if that wasn't stingy enough... with Automateit, my GPS, wifi and 3g get deactivated when the screen is off (all activate when screen is on). My battery life is pretty good, even overclocked . When I plugged in, going to bed the other night, I had 85% of my battery remaining (14 hours unplugged).
I should probably stop worrying about battery life.
Click to expand...
Click to collapse
Yeah you really shouldn't have to be worrying about battery life, it's something that use to drive me insane so I just bought a 2150mah battery and haven't looked back since.

Help me figure out how to improve the battery life

I am running AOKP M3 with franco kernel #15.2, turtle governor, 350/1000 w/ stock franco voltages. I also modded the auto brightness levels to ones of the MID mod. I use WiFi at home; I have set the power saver to switch to 2G after 1m of screen off time. However, I an unable to get more than 2-2.5h of screen on time no matter what I try. I plan to purchase the extended battery, but in the meanwhile what can I do to improve the battery life? I have the GSM phone.
Thanks in advance!
I've tried all sorts of stuff and 2 and a half hours is the most i've been able to get.
In order to do that I was using mostly wifi, auto brightness and I had undervolted as much as possible.
I've tried all different kernels and i've just accepted the fact that with this phone and the way I use it that's as good as it's going to get. To be honest i'm satisfied with that because in order for me to get 2+ hours of screen on time it has to be my day off, otherwise i'm too busy.
Also, i'm pulling 14-16 hours per charge with 2-2.5 hours of screen on time which in my opinion is great. I just want it to last all day and for me it does.
Try LeanKernel.
I get at least 4 hours battery life with:
Version: GSM GNex
ROM: AOKP Milestone 3 (power saver mode off)
Kernel: Lean Kernel
Battery: 2000 mAh
Frequency: 350/1200 Conservative
UV: Stock
3G/HSPA/LTE: 3G/HSPA and my network doesn't support 2G
What's off: BT, WiFi unless I'm home, Sync for Calender Contacts Browser and Photos.
Brightness: About 40-50%
Daily, I use: Netflix/Poweramp/Spotify/Reddit on my daily commute. Phone/Poweramp/Spotify/Reddit/Browser+ in between commute.
Even without the extended battery like you I would at least get 3.5 hours.
#1- people getting over 3 hours of screen time are on wifi the whole time, have 4g off, are minimalists with no syncing and no voice calls, or a combination of any of these.
#2 - based on your graph you have a lot of wake locks. Look at how often your phone is awake when your screen is off. That is KILLING your battery life. Disable or uninstall rogue apps, and turn off GPS and location services seems to help with this. Also reduce your amount of sync intervals if you can.
I have stock 4.0.2 unrooted GSM with extended battery.
Sent from my Galaxy Nexus using XDA App
republitarian said:
#2 - based on your graph you have a lot of wake locks. Look at how often your phone is awake when your screen is off. That is KILLING your battery life. Disable or uninstall rogue apps, and turn off GPS and location services seems to help with this. Also reduce your amount of sync intervals if you can.
Click to expand...
Click to collapse
Look at the betterbatterystats for wakelocks; looks like lookout kept half an hour, the rest are mostly sync.
Try to remove all widgets for a while. This can rule things out.
I'm running the exact same thing M3 with Franco 15.2 except I have the extended battery. This is with almost 0 idle time. Literally playing games, rrading forums, texting, etc.
Sent from my Galaxy Nexus using XDA App
Sorry posted wrong one. Here is my screen time.
Sent from my Galaxy Nexus using XDA App
Aww c'mon *cry*
I only have the calendar, clock and palmary weather widges (6 hour auto update). As far as I can tell Lookout and Sync are the *****es - literally. But that doesn't solve the idle drain, with the phone sleeping, it seems like 2-3% every hour or something like that.
That doesn't sound right. I have everything running as well. I don't use lookout any longer though. I'm sure if I just did the idle test I can get over a day of on battery time and still reach nearly 5 hours of on screen time. That's mostly Wifi which is suppose to drain more battery life, but I haven't seen the difference from being on 3G. This is a good set up.
Sent from my Galaxy Nexus using XDA App
I don't know if this is important but its a good note, I have not touched the performance settings or done any UV, not experienced enough, but I still produced those results.
Sent from my Galaxy Nexus using XDA App
I think you should try removing lookout. Take for example my awake times when screen is off. I sync Gmail, photos,remember the milk, and beautiful widgets.
Also major battery awake drain in beginning of my graph is due to streaming Google music when screen was off so perfectly normal.
Sent from my Galaxy Nexus using XDA App
Alright, I will remove Lookout. What alternative do you recommend, in case someone pick pockets my phone? Preferably free or cheap w/ Internet access. I'm thinking of Cerberus, as it'll be impossible for any wanna be thief to remove; I suppose the 3 EUR license is for device, right? Does it persist through ROM flashes (i.e. based on IMEI).
As for WiFi drain, on 3G it would be worse - it's longer range thus it needs more power and if the signal is bad (lucky I get top notch at home, not so at school), it's even worse.
When I get some more cash I'll order the extended battery and a dock off eBay, then I'll have a large main battery and the original one as a reserve.
EDIT: I've added the stats for this day. Better overall, the phone was used more intensively so getting a bit higher screen on time is good. I disabled Google Talk, I see it keeping the phone awake for a significant time, but I never use it. I also get rid of Palmary Weather and switched to the built in app, I'll see tomorrow how it goes.
The screenshots on the original post show sharp increase in battery drain when there is a) screen on and b) no mobile network signal.
In my opinion, these are two if the biggest culprits. The screen is obviously a power hog, especially with max brightness, and the lack of a network signal forces the phone to increase power to the radio in order to find a stable connection.
samizad said:
In my opinion, these are two if the biggest culprits. The screen is obviously a power hog, especially with max brightness, and the lack of a network signal forces the phone to increase power to the radio in order to find a stable connection.
Click to expand...
Click to collapse
Well with the screen there's nothing you can do; A big screen will use a lot of power, a dense screen with use a lot of power, both is even worse. If this were an LCD instead of OLED the battery life with Holo would be horrible. Turning the brightness even lower than my tuned auto levels is not an option - the phone would be impossible to use due to the glossy nature of glass. As for the network, I can't do anything about that - the school building is built from reinforced concrete, that sucks up the signal pretty well and it's downtown, where the signal is already quite shoddy; at home I have a celullar tower 1km away so I get excellent reception, not so downtown.
But I'm not complaining about those. I mean the background activity, mostly the idle wake time. I'll see what I get tomorrow now that I killed Lookout and Talk, those seemed to be two major hogs.
Seems like you have a lot of awake time. Try disabling Maps, Google+ and remove all widgets and test it for a day. If it is better now, you have ruled out signal problems.
Is there any way to reduce the interval of Google sync events? (gtalk_async_conn) When I was at home on WiFi I got a sync maybe once every few hours (seen as wake). As soon as I left and turned WiFi off the sync was like every 10 minutes, which is weird, as in the AOKP ROM Control power save settings I set it to PREFER WiFi.
Why do I get a LOT more sync wakelocks on mobile data than on WiFi when the ROM is set to prefer WiFi syncs?
best pattery save I have found is turning off various radios
I use an app Profile that can turn on/off bluetooth and wifi based upon the time of day. So it turns on wifi at 7 PM M-F and turns it off at 6 AM when I leave for work. I get great battery life, and I think it is due to the radios I turn on and off.
LeanKernel stable... all the way!!... ive tried his OC 1.42/230 but you start feeling the drainage...
Sent from my Galaxy Nexus using xda premium
Believe it or not, activating wi-fi when I'm at home has actually increased my battery life substantially. No need to even turn it off; at the end of the day, it takes about 2% of your total battery life.
Care to post the "Power saving" app you are using, TC? The one that can activate 3G after the screen turns off? For so long I've been looking for such a powersaving app.

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