Lies, Statistics and Android OS - Nexus S General

Mostly, I use my Nexus S with AutoSync off, my modem on, Wifi on when needed and otherwise off. But today I accidently left AutoSync on at home...
...and for the first time since I bought the handset right after Christmas, Android OS is fifth or sixth in the list of power using applications, right in front of Android System.
I only use my GMail account in the Accounts & Sync Settings.
I admit that the third one on the list is Voice Calls, but if anything I would have expected Android System to be higher in the list as this shows the GoogleSync and data use.
So: either AutoSync is very data and device efficient with my set up, or Android OS and Android System's impact on battery life is implied, a statistic or incorrectly calculated.

Today is the first day Android OS battery usage has fallen right down too. Still trying to work out what changed, but for me auto sync has always been on and is unchanged.
Sent from my Nexus S using XDA App

Oh now that's interesting... or a co-incidence...

Related

Everyone with Battery problem post info here fix soon

Ok, although I do not have a solution it seems that their are a small percentage of people on here that have the same problem as me.
This is what I know:
The EVO has a bigger display, a faster proccessor, 4G, and alot of advanced features this means battery is not going to be the greatest.
However, I am now rooted running CM6 RC2, and although I love this ROM I have been having terrible battery. Also, I was using Fresh's and stock unrooted ROM and had bad battery also, AFTER I PUT IN ALL MY SETTINGS.
When I would hard reset my phone, it would sleep like normal, and the battery would run great, however, I think their is a setting that I use with my phone that is keeping it awake.
Now I am going to give all the settings that I use on my phone without installing any apps from the market. Because I know some apps keep your phone awake but I did a factory reset, put in my settings without installing any apps and my phone stayed awake.
***I have already tried the HTC and Sprint method of "conditioning your battery" I know their are 2 methods I have done both. I have setCPU, juice defender, spare parts, all that stuff that supposedly saves battery, but so far none have helped. Also my phone is set to auto CDMA, i tried that*****
Here is what I think. I am changing some setting in the phone that is keeping it awake and I can't seem to find what it is, I had this same problem with google sync setting and thankfully someone helped me fix it and it solved the problem however, after that I am still having the issue.
Keep in mind I HAVE NOT INSTALLED ANYTHING FROM THE MARKET YET, I have only entered my settings in apps that came with the phone because I believe that is the culprit.
My settings
*#*#4636*#*#
Battery history, since last unplugged
running: 14.6%
Screen on: 10.4%
Phone on: 3.5%
Wireless and network
Airplane mode, wifi, bluetooth, tethering and portable hot spot VPN are all off
Under Mobile network
The options are: data enabled: Checked
data roaming: unchecked
System select (change the cdma roaming guide) options are either home only, affiliated networks, or automatic. I have automatic set.
Voicemail service my carrier
Nothing in the CM6 settings have been changed
Auto brightness, screen timeout 30 sec
Location: wireless network:checked
Use GPS sattelite: unchecked
Accounts and Sync:
Background data: enabled (checked)
auto sync: Enabled (checked)
Facebook-sync if off, I have not synced contacts with Facebook, and the problem I had last time was with google sync, I had google sync turned off and that kept my phone on. Now I have facebook sync turned off, COULD THAT BE THE PROBLEM?
Privacy: Back up my data-checked
automatic restore-checked
Mail settings, never update, I manually update.
News and weather is same thing, could google be trying to update even though its set not too and keep my phone awake?
Under facebook settings: refresh interval is set to never
Notifications are inactive.
About phone
Cell standby:37%
Phone idle:28%
Android system:20%
Voice calls:11%
Display:7%
If anything looks not right, or you think something as little as it may be may be causing the problem, even if it doesn't make sense please suggest it, I have tried everything, thanks.
Not to burst your bubble, but it's been pretty much proven that CM6 has unsatisfactory battery life.
Try Burnt Droid v1 + netarchy-toastmod kernel for optimum battery life.
I know,
but after reading through the thread it seems that about half of them half pretty good battery life, however I had poor battery with other roms, because something was keeping my phone awake.
I'm having a similar problem. On any ROM that's based of HTC's 2.2, my phone will run fine for about a day and then it will begin to stop sleeping. Once that happens the only way to get it to stop is to do a factory reset. What's funny is that using the exact same settings with CM6-RC2 I don't get the 100% awake issue. I've tried everything and can't figure it out.
I've tried turning off all automatic syncing, turning off network time and network location...didn't work. I deleted my Exchange account since I had heard that some people were having Exchange problems...didn't help. This last time around I didn't install anything from the market, it was just the stock apps. I did connect the phone to Sync in my truck and used it quite a bit before the problem cropped up.
I've got a sneaking suspicion that it's some kind background process that tries to run after a specified amount of time, but there's some kind of problem with the Sense-based ROMs that I've tried that won't allow it to run properly. So we need to figure out what the process is and either stop it from running in the first place, or figure out a way to take it out of the ROM so it isn't there to begin with.
I'm going to wipe everything and try installing Fresh 3.1.0.2 again. I'm going to try to remember to reboot my phone every night when I plug it in to charge and see if that helps. While it isn't ideal, it's way easier than having to do a factory reset every other day. I'll post back and let everyone know what happens.

[TIPS] How to make your G2's Battery last longer

Its time we need a thread like this to ensure every G2 user is getting the best out of their battery.
Here are my tips:
- WiFi: Should ONLY be ON when you are actually using it!
- WiFi Sleep Policy=NEVER: it takes more time and power to seach for a Wi-Fi AP than actually staying connected to it. Settings > Wireless & networks > Wi-Fi Settings > MENU > Advanced > Wi-Fi sleep policy > Never.
- Bluetooth: Should ONLY be ON when you are actually using it!
- Use 2G when possible: If you know you are in a area with NO 3G support, than set your phone in 2G mode so it doesn't use power looking for 3G. Settings > Wireless & networks > Mobile Networks > 2G only
- Haptic feedback=OFF: I personally leave this OFF because minor vibrations are annoying plus consume battery. Settings > Sound > Haptic feedback
- Audible Selection=OFF: For obvious reasons, we use the touchscreen the entire time, enabling this will case battery drain everything you make a selection in Android, App, Web. Settings > Sound > Audible Selection
- Display - BRIGHTNESS=30%: I use about 30% brightness when indoors - when I am outside I turn it up brighter using Power Control widget. Settings > Display > Brightness.
Note: You can also leave it on AUTO, which is will provide optimal bnrightness with respect to ambient light.
- Display - Animations=Your choice: I personally have ALL of them enabled, but that is scarificing a small amount of battery power. If you do NOT need the pretty transitions, you can opt for other options. Settings > Display > Animation.
- Display - Screen Timeout=30: I leave mine at 30 seconds, as I think that's ideal for most situations. Settings > Display > Screen timeout.
- Location - Wireless networks=OFF : The phone uses tower and signal strength to calculate your APPROXIMATE location, which is a waste when you have GPS. NOTE: This feature assists in fiding your location indoors. If you plan on using GPS outside on than you should leave it OFF. Settings > Location & Security
- Location - GPS=ON: It should be ON if you plan on using MAPS or Navigation. NOTE: GPS is ONLY used when system needs it! Having it Checked OFF does NOT help battery life. The only time GPS is active is when you see the icon in the notification bar. Settings > Location & Security
MAJOR CONSIDERATIONS
- DATA - (3G/HSPA+) - Hogs the most battery, even more than the brightness of the phone. The reason for that is when you are surfing, searching, texting basically anythin that requires 3G/HSPA+ data the radio, CPU, and RAM are always working to ENCODE and DECODE data going in and out the device. This process requires all 3 major components to work simultaneously which draws more power from the the battery!
- Widgets - Widgets like facebook, twitter, weather, news do have processes running in the back which draw DATA depending on your refresh options. ie, You will draw less power if your facebook/twitter updates every 3 hours instead of 1.
- APPS - Always keep in mind that APPS like messengers and others which constantly need data DO run in the background. Background apps will draw DATA AS needed, which bring it back to the point above. Always make sure that you SIGN OUT of APPS that require background data, IF you don't plan on using them.
- Live Wallpaper - yes, it looks pretty as we all know it. Sadly, the truth is that both CPU and GPU are working hard in the background to bring a smile to your face when you look at the screen. Live wallpaper will affect your battery about 5 - 10%, dpepending on which one are you using.
- Vibration - Considered important as well.... if you are a CONSTANT texter/EMAIL-er AND you dont need Vibration, than you should turn it off. Vibration actually takes more battery power than actualy sounds.
- Volume - Should be considered important because the higher the volume the more battery power it'll take. If you can do just fine with a Mid-level volume than you should set ringer to mid level!
YOU SHOULD NOT USE A TASK KILLER APP
http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/
^^^ That explains everything about it ^^^
I'd be happy if one of the MODs made it a sticky, so we dont get Qs or reposts
and ofcourse I will also include any tips you guys have.... please leave a comment and explain why&how you think it saves battery life. I will than add it in this list
thanks for this.
auto-brightness works for me. also, wireless network location is kind of necessary because gps won't locate you when indoors. when you're indoors you don't really need an exact location anyway because you probably know where you are. but using wireless networks to get your approximate location enables you to quickly search for things nearby.
one more thing I might add - my G2 seems to constantly switch between edge and hspa. I think I recall this being an issue for the N1 too. if I'm not mistaken, switching taxes the battery. so I set the phone to only use 3G (or only 2G depending if I want to use less battery). you have to have Anycut. then crete a shortcut to "phone info." here you can control the radio behavior. WCDMA is 3G, while GSM is 2G.
also, question: anybody ever have any luck conditioning their battery? I keep hearing that it improves battery life but it's never really helped me
Thanks for the tips! Though, what are you sources saying that WiFi sleep uses more battery? Auto-brightness does work for me, it is just very slow to make changes and tends to be on the brighter side.
most of these tips are pretty much universal for most of the current and past android phones.
LET IT BE KNOWN the main reason for battery drain (slow or fast) is APPS. They drain more than talking on the phone. They also are the main reason your screen (the next big battery killer) would stay on. In other words, don't complain about battery usage if you're using your phone constantly throughout the day @ work or home. ITS NOT GONNA BE GREAT!
joebobjoe said:
Thanks for the tips! Though, what are you sources saying that WiFi sleep uses more battery? Auto-brightness does work for me, it is just very slow to make changes and tends to be on the brighter side.
Click to expand...
Click to collapse
As an Electrical engineer, I work with wi-fi chipsets... The process is that when wifi is "sleeping" it temporarily goes to OFF when you lock the phone. [exception: when not using apps like pandora]. So when you turn the phone back ON, WiFi turns back ON and searches for the AP you were connected to. >> this process of turning OFF, ON, and SEARCHING, requires a more battery power than staying connected. When you are connected the router and phone are exchanging information (packets) on AS needed basis like when we use 3G/2G.
i did try Auto Brightness, its a bit Bright for me, i'm gonna continue to use it for the next few days, see how I like it.
joebobjoe said:
Thanks for the tips! Though, what are you sources saying that WiFi sleep uses more battery? Auto-brightness does work for me, it is just very slow to make changes and tends to be on the brighter side.
Click to expand...
Click to collapse
Auto-brightness seems to be buggy on the software side. The light sensor is very quick to detect changes, but the brightness doesn't drop back once it goes up. I feel that the brightness gets set to full at too low of a light level too. Using a screen protector and case does help a little by blocking some of the light, but it's not enough.
Actually, having GPS on consumes battery even when it is not used. And quite a lot. I have seen mayor battery boost after I started to turn it off when I do not use it. (on G1).
I've done some monitoring with PowerTutor and noticed that the Facebook app significantly drains the G2's battery (even when all features are disabled). If you sign out of it you should notice a 2+ hour increase in your battery life. People in my other thread have confirmed this and I think it might be a bug with facebook 1.3.2. I recommend making a link on your home page to m.facebook.com instead of using the facebook app.
I have also noticed that the e-mail app (NOT G-MAIL), when using Exchange ActiveSync, drains a good bit of battery when used with a Hotmail account (I'm not sure if other exchange servers have this problem or if the problem is in the e-mail app itself). The remedy that I have come up with for this is to make a new G-mail account, set hotmail to forward to it, and then on the gmail website go to Settings-> Accounts and Import and under the Send Mail As: section, add your hotmail account to it and set it as the default.
This way you get g-mail's lightweight mail pushing (which is just as fast as exchange) and it's transparent to you and everyone who has your hotmail address.
Besides those two tips, I recommend using PowerTutor to diagnose any abnormally low battery life issues you may have. My power usage is way down after fixing these two problems. Once in PowerTutor, go to View Application Power Usage, set Time Span to total, disable LCD monitoring, and set Sort By to Energy usage. Reset the power profiler and lock your phone and let it sit idle for about 30 mins to 1 hr, and then look at the application power usage. PowerTutor will probably be the top one, but you should also see what other applications are sapping your battery life.
Note: PowerTutor itself drains battery, so you should not constantly run it. I think it is set to start automatically so you will want to go in to settings and turn that off.
funkadesi said:
Its time we need a thread like this to ensure every G2 user is getting the best out of their battery.
Click to expand...
Click to collapse
+1 Sticky Please.
pmstc said:
I've done some monitoring with PowerTutor and noticed that the Facebook app significantly drains the G2's battery (even when all features are disabled). If you sign out of it you should notice a 2+ hour increase in your battery life. People in my other thread have confirmed this and I think it might be a bug with facebook 1.3.2. I recommend making a link on your home page to m.facebook.com instead of using the facebook app.
I have also noticed that the e-mail app (NOT G-MAIL), when using Exchange ActiveSync, drains a good bit of battery when used with a Hotmail account (I'm not sure if other exchange servers have this problem or if the problem is in the e-mail app itself). The remedy that I have come up with for this is to make a new G-mail account, set hotmail to forward to it, and then on the gmail website go to Settings-> Accounts and Import and under the Send Mail As: section, add your hotmail account to it and set it as the default.
This way you get g-mail's lightweight mail pushing (which is just as fast as exchange) and it's transparent to you and everyone who has your hotmail address.
Besides those two tips, I recommend using PowerTutor to diagnose any abnormally low battery life issues you may have. My power usage is way down after fixing these two problems. Once in PowerTutor, go to View Application Power Usage, set Time Span to total, disable LCD monitoring, and set Sort By to Energy usage. Reset the power profiler and lock your phone and let it sit idle for about 30 mins to 1 hr, and then look at the application power usage. PowerTutor will probably be the top one, but you should also see what other applications are sapping your battery life.
Note: PowerTutor itself drains battery, so you should not constantly run it. I think it is set to start automatically so you will want to go in to settings and turn that off.
Click to expand...
Click to collapse
i think with exchange rather than having the user select the refresh interval (ie 30 mins, 1 hour) the system is a ALWAYS ON connection which constantly checks your e-mail. As oppose to G-Mail..... they as get PUSHED to your phone by google's servers every time you get an e-mail as oppose to an ALWAYS ON system.
There is a lot of hush going on about the facebook app draining the battery... hence I addressed the widget/app parts..... as of now I think we should wait for an update to see how things change, it is a software bug.
Location - Wireless networks=OFF
By turning this off won't you in turn be turning off assisted GPS?
IE - the GPS will not have an approximate location and begin locating from there but will rather have to cycle much further to dial in and take much longer to calculate your position?
Just asking - if you haven't noticed a difference then that's cool.
I also noticed shop savvy was taking up alot of my battery drain. Looks like it was running in the background non stop. I uninstalled it.
Isn't WCDMA the HSPA+ network and CDMA the 3G? I currently have mine set to edge only since the speeds are slow all across the board in my town. Even on the phones down at the tmobile store. Hoping its just a minor tower issue in my area.
Sent from my T-Mobile G2 using XDA App
funkadesi said:
i think with exchange rather than having the user select the refresh interval (ie 30 mins, 1 hour) the system is a ALWAYS ON connection which constantly checks your e-mail. As oppose to G-Mail..... they as get PUSHED to your phone by google's servers every time you get an e-mail as oppose to an ALWAYS ON system.
There is a lot of hush going on about the facebook app draining the battery... hence I addressed the widget/app parts..... as of now I think we should wait for an update to see how things change, it is a software bug.
Click to expand...
Click to collapse
Exchange activesync should push email. I had set it to push and hotmail supposively supports this. Even if it doesn't, I tried setting it to polling and it still seemed to use a decent amount of battery life. Anyways something is wrong with activesync pushing.
Sent from my T-Mobile G2 using XDA App
funkadesi said:
i think with exchange rather than having the user select the refresh interval (ie 30 mins, 1 hour) the system is a ALWAYS ON connection which constantly checks your e-mail. As oppose to G-Mail..... they as get PUSHED to your phone by google's servers every time you get an e-mail as oppose to an ALWAYS ON system.
There is a lot of hush going on about the facebook app draining the battery... hence I addressed the widget/app parts..... as of now I think we should wait for an update to see how things change, it is a software bug.
Click to expand...
Click to collapse
Exchange uses Activesync, which pushes messages as well. The ongoing sync is for contacts and calendar items which if you do not make a lot of changes, change to off and sync then yourself manually.
markdurant said:
Exchange uses Activesync, which pushes messages as well. The ongoing sync is for contacts and calendar items which if you do not make a lot of changes, change to off and sync then yourself manually.
Click to expand...
Click to collapse
I had turned all Syncing off besides mail and it was still eating battery on push mode... just something to keep in mind for Activesync users who are experiencing abnormally low battery life
raqua said:
Actually, having GPS on consumes battery even when it is not used. And quite a lot. I have seen mayor battery boost after I started to turn it off when I do not use it. (on G1).
Click to expand...
Click to collapse
GPS ONLY uses battery when it is in use. You will know this because the icon will appear when it is being used. It doesn't use battery just being on. WiFi and Bluetooth do because they have to constantly "keep their eyes open" for things like networks and bluetooth devices that want to pair/communicate.
ddgarcia05 said:
I also noticed shop savvy was taking up alot of my battery drain. Looks like it was running in the background non stop. I uninstalled it.
Click to expand...
Click to collapse
I noticed this too on other Android phones but not on my G2. It would just show up in Battery Use even though I wasn't using it. If you want to see what is keeping your phone awake you can use the hidden Battery History menu. The "partial wake usage" is usually a big contributor for bad standby times. You could also try changing from WCDMA Preferred to GSM Auto PRL. This helps some people.
khaosxiii said:
Location - Wireless networks=OFF
By turning this off won't you in turn be turning off assisted GPS?
IE - the GPS will not have an approximate location and begin locating from there but will rather have to cycle much further to dial in and take much longer to calculate your position?
Just asking - if you haven't noticed a difference then that's cool.
Click to expand...
Click to collapse
A lot of people have been reporting that this feature as of NOW updates every hour, regardless of which services/apps need it. If you ask me, I haven't noticed any significant amount in the time it takes to get GPS location having that feature turned OFF. If you do a cold start (i.e. restart your phone) than the GPS will take a couple of more seconds to initialize for the first time use. However, from than on everytime you use the GPS it shouldn't take more than 10 seconds to acquire your position.
hah2110 said:
I noticed this too on other Android phones but not on my G2. It would just show up in Battery Use even though I wasn't using it. If you want to see what is keeping your phone awake you can use the hidden Battery History menu. The "partial wake usage" is usually a big contributor for bad standby times. You could also try changing from WCDMA Preferred to GSM Auto PRL. This helps some people.
Click to expand...
Click to collapse
Could you explain more about this settings, and how would one get to this setting.... If it helps save the battery I'll add it to the list
funkadesi said:
Could you explain more about this settings, and how would one get to this setting.... If it helps save the battery I'll add it to the list
Click to expand...
Click to collapse
Sure... At the phone menu (must be the native dialer), dial *#*#4636#*#*. Then chose Battery History and you can use the drop downs to control what you view. If you go to "phone information", you can change the preferred network type. Here you can force 3g only, etc. WCDMA Preferred fights to get a 3G signal and keep it. GSM Auto PRL uses a downloaded list to choose whether to use 3G or 2G, thereby saving battery in certain cases.

I have figured out the solution to the battery problem many of us have with Froyo

- Update to AOSP Email.
- If you are using Exchange, use Push only. Do not use the interval syncs.
- Uninstall / Disable Juice Defender
- Uninstall / Disable ATK
The whole problem is wake locks. The current Email client has an issue with wake locks if you use Exchange ActiveSync and do not have Push selected.
As well, if you have ATK installed, and it kills Email, then when it starts up again it will enter another wakelock.
Juice Defender causes the same problem by disabling the radio - basically, Juice defender makes the battery use worse, not better, because the re-sync of the email every 5 minutes makes it go into wakelock mode and never let go of the CPU.
After fussing with upteen dozen kernels and roms and modems, making these 3 changes has had a REMARKABLE decrease in battery use. I am burning my battery at less than 1/2 the rate I was previously.. I now burn less than 3%-4% / hour. Which means I will easily get through a full day with the phone.
EDIT: The other thing to make sure of is that you don't have the buggy version of Gallery3D that drains your battery due to holding onto the sensor. Your best bet is to just totally delete the APK from your ROM, and install the one from the market if it is an app you want.
Title is a bit misleading, please add problem with email battery drain, because a lot fo the froyo drain issues is for people not using the email and not even connected to data network mode.
You said update to AOSP mail ... anything wrong with the stock Email.apk?
Here's something i discovered, but wouldn't mind confirmation from others.
When waking your phone (with the charger not connected), is there a one second delay for the screen to come on? If there is, the phone is sleeping fine. If not, and the screen wakes instantly, something is preventing the phone from sleeping properly, thus wasting battery..
Its not really a good second but yeah there is a delay, never noticed it was instant.
Metalzoa said:
You said update to AOSP mail ... anything wrong with the stock Email.apk?
Click to expand...
Click to collapse
As far as I can determine both AOSP and stock email APK have this issue, it hasn't been fixed in source yet. But, I have switched to AOSP so I can only report on results when doing that.
EarlZ said:
Title is a bit misleading, please add problem with email battery drain, because a lot fo the froyo drain issues is for people not using the email and not even connected to data network mode.
Click to expand...
Click to collapse
You don't have to be connected to data network. In fact that can be the cause of the whole problem!
If you use email and either
- It gets killed
- you lose network access or it is turned off (a-la Juice Defender)
.. then it goes into this wake-lock state and hangs onto the CPU forever, draining the battery.
Every person I have seen complain about the excessive battery drain was using Email like me.. the most common comments are along the lines of "all I have going is email and..." so I suspect this (along with the Gallery3D issue) is the cause of most everyone's problems.
so if I'm not using the Email app at all (I removed it entirely)
it SHOULDN'T be munching through my mAh?
You don't have to uninstall juice defender. Simply adjusting settings so that it does not force a sync on schedule. Then it actually saves battery again.
Sent from my GT-I9000 using XDA App
brunes said:
- Update to AOSP Email.
- If you are using Exchange, use Push only. Do not use the interval syncs.
- Uninstall / Disable Juice Defender
- Uninstall / Disable ATK
Click to expand...
Click to collapse
I don't have any battery drain (Doc's 7.6.2 JPO).
I use stock gmail app 'cause I only use three gmail accounts with data sync enabled.
I never installed Juice Defender nor ATK...
My battery lasts 2 days.
lpy said:
When waking your phone (with the charger not connected), is there a one second delay for the screen to come on?
Click to expand...
Click to collapse
Hummm maybe 1/2s. Not instant, but not a whole second either...
Mycorrhiza said:
You don't have to uninstall juice defender. Simply adjusting settings so that it does not force a sync on schedule. Then it actually saves battery again.
Click to expand...
Click to collapse
No, just turning the radio on and off causes the Email app to lose connectivity and go into the wake lock.
Update - my phone burned through only 8% overnight from 11 PM-7 AM. Previously it would burn through 40%+ overnight, no matter what kernel or modem or other options I turned on or off.
Adevem said:
so if I'm not using the Email app at all (I removed it entirely)
it SHOULDN'T be munching through my mAh?
Click to expand...
Click to collapse
Did you roll back the Gallery app?
Also it is possible you have another app with this wake lock problem. Run Spare Parts, Battery History, and change the dropdown to since last boot/Last charge and "Partial Wake Use". Click on whatever 1 or two apps are on top.
If the time listed is more than a small % of the time since last boot or charge, then that app has a wake lock problem.
In the case of the Email app it will easily have a wake lock use time of nearly half of the time since last boot.
Any app with a wake lock is a huge battery consumer since your phone never goes to sleep mode.
I'm not having any major batteries actually ;p I mean, if I can somehow improve battery life by changing some more stuff, why not?
I'm on the Gallery off Market (no sensor issue). on another thread if users are reporting Stock Gallery not having any battery drainage, I might roll back to try it out.
brunes said:
- Update to AOSP Email.
- If you are using Exchange, use Push only. Do not use the interval syncs.
- Uninstall / Disable Juice Defender
- Uninstall / Disable ATK
The whole problem is wake locks. The current Email client has an issue with wake locks if you use Exchange ActiveSync and do not have Push selected.
As well, if you have ATK installed, and it kills Email, then when it starts up again it will enter another wakelock.
Juice Defender causes the same problem by disabling the radio - basically, Juice defender makes the battery use worse, not better, because the re-sync of the email every 5 minutes makes it go into wakelock mode and never let go of the CPU.
After fussing with upteen dozen kernels and roms and modems, making these 3 changes has had a REMARKABLE decrease in battery use. I am burning my battery at less than 1/2 the rate I was previously.. I now burn less than 3%-4% / hour. Which means I will easily get through a full day with the phone.
EDIT: The other thing to make sure of is that you don't have the buggy version of Gallery3D that drains your battery due to holding onto the sensor. Your best bet is to just totally delete the APK from your ROM, and install the one from the market if it is an app you want.
Click to expand...
Click to collapse
I am sorry for noobness, but how do I do these things you suggested? I cant find this configuration to disable checking mail besides push.
I am using stock email app and my gallery doest have sensors problem. But my cell is draining like 20% overnight (6 hours while cell was sleeping). This is insane and I cant track what is using this much.
PS: I am using Doc rom with cfroot
respider said:
I am sorry for noobness, but how do I do these things you suggested? I cant find this configuration to disable checking mail besides push.
I am using stock email app and my gallery doest have sensors problem. But my cell is draining like 20% overnight (6 hours while cell was sleeping). This is insane and I cant track what is using this much.
PS: I am using Doc rom with cfroot
Click to expand...
Click to collapse
Open email, go into Account Settings. Under Check Frequency, make sure it is set to AUtomatic / Push. Then make sure you don't have any auto task killers or other things running that kill apps or turn your radio on and off.
I think email is the problem...
automatic/push selection
brunes said:
Open email, go into Account Settings. Under Check Frequency, make sure it is set to AUtomatic / Push. Then make sure you don't have any auto task killers or other things running that kill apps or turn your radio on and off.
Click to expand...
Click to collapse
forgive my noob question but I cant find automatic/push in my email settings at all (it only allows for never, or other time intervals up to an hour). This is on the AOSP email app.
arul said:
forgive my noob question but I cant find automatic/push in my email settings at all (it only allows for never, or other time intervals up to an hour). This is on the AOSP email app.
Click to expand...
Click to collapse
OK I should have mentioned Push is applicable to outlook email only. If you are using some other POP email you can't use push. I am not sure if Push is applicable to IMAP.
using email and settings switch to "Never"
did not seem to encounter this b4.
My data is usually turn off. I only turn on manually when i need to check mails or surf net.
I dont have sensors issue with gallery and I have removed all email programs from my SGS.
Still have battery issues. It drains really fast when data is on and I cant track what is using so much power

We need a stickied battery improvement thread

I am happy to make one.
Sent from my SPH-D700 using XDA App
My battery tips
1. Latitude : If you are logged in, it will update your location every few minutes. This will make a phone that should be on a very low power state, re-enable lots of things that suck power. (5hrs)
2. Home screen weather clocks : Just change the update interval to something more like every 3 hours and it won't kill your battery as quick. Make sure you don't have it use GPS for location. If you don't mind, set the location to be static. (1hr)
3. Chat programs that don't rely on push. If the program needs to keep your data connection alive, it will kill your battery.(1-5hrs)
4. Anything that will update automatically. The craigslist app for example will poll the site for changes, waking the connection and the processor each time.(1-5hrs)
5. Bluetooth. : I know it isn't an app, but if you aren't using it, don't have it on. It takes enough power to eat a few hours of battery life. Pretty major. (3hrs)
6. Leave 4G on. : This might not work for everyone, but when 4G is asleep, it doesn't seem to suck juice the same way 3G does. My EVO dies quick on 4G, my Epic battery lasts longer on 4G. (as long as you are in a 4G area). (3hrs)
Disable these things and you should get battery life that you hear others bragging about.
"Latitude" on my phone and others I've seen, does not update that often and really only constantly updates is when you have maps open. My wife and I both run latitude and have not noticed anymore of a battery drain than not running it.
sdrawkcab25 said:
"Latitude" on my phone and others I've seen, does not update that often and really only constantly updates is when you have maps open. My wife and I both run latitude and have not noticed anymore of a battery drain than not running it.
Click to expand...
Click to collapse
Mine updates every few minutes on WM and Android. Turn on your history and you will see it updates hundreds of times a day. After my froyo update, I couldn't make it through the day. You might have location set to wifi or wireless, I probably should do that too, but I'd rather keep it active.
I subscribed to it.
http://forum.xda-developers.com/showthread.php?t=884684
i thought the whole idea of push was that it doesn't use data cause its a server side push instead of the phone polling at a set schedule
roghaj said:
Mine updates every few minutes on WM and Android. Turn on your history and you will see it updates hundreds of times a day. After my froyo update, I couldn't make it through the day. You might have location set to wifi or wireless, I probably should do that too, but I'd rather keep it active.
Click to expand...
Click to collapse
Weird, I have history on and the setting to update automatically, and still only updates only once every few hours on it's own. Maybe mine is "broken", but glad it is then. I'm on an htc Incredible.
If you are getting excessive drain while on wifi, check for unusual traffic on your network as the problem is probably not your phone and something else polling your device keeping it awake.
http://forum.xda-developers.com/showthread.php?t=1087278
For me, the problem was HP's wireless printer software on one of my laptops.
I'm wondering if one of these 2 is a big sleep preventer:
1. "Background Data" (I used to think all you had to do was disable "Auto Sync" but when I uncheck "Background Data" I get a popup saying something about how I will save battery power if I agree to disable)
2. "Use Wireless Networks" (even if GPS is off).
I usually have been getting good results after unchecking a combo or both of these and sometimes I even have to reboot to get back to normal Epic sleep.

Google Play Services using the most battery

I am on my 5th charge, and Google Play services is my number one battery sucker.
I have location services, BT, on 24/7. I only connect to BT when in my car though, so 5% of the day maybe.
If I let me phone sit idle for about 4 hours, Google Play services will be the only thing that consumed battery.
Any advice on troubleshooting it? So far i've tried disabling NFC, google hang outs, ambient screen. I am trying things one at a time to see what's causing it.
There are no wakelocks, because I click the graph and I show it's only awake when I am actually using it. GPS is rarely, if ever on. WIFI is never on, as I have green signal everywhere + unlimited data via tmobile. I also do not have any other always connected apps like facebook, or facebook IM, twitter, or whatsapp, etc.
vivithemage said:
I am on my 5th charge, and Google Play services is my number one battery sucker.
I have location services, BT, on 24/7. I only connect to BT when in my car though, so 5% of the day maybe.
If I let me phone sit idle for about 4 hours, Google Play services will be the only thing that consumed battery.
Any advice on troubleshooting it? So far i've tried disabling NFC, google hang outs, ambient screen. I am trying things one at a time to see what's causing it.
There are no wakelocks, because I click the graph and I show it's only awake when I am actually using it. GPS is rarely, if ever on. WIFI is never on, as I have green signal everywhere + unlimited data via tmobile. I also do not have any other always connected apps like facebook, or facebook IM, twitter, or whatsapp, etc.
Click to expand...
Click to collapse
I am getting the same thing right now. I didn't yesterday.
I know it shows Google Play Services if you have Google Photos backing up your photos and videos. It is defaulted to do it whenever you are on wifi I believe. I have mine set to only backup while charging. I still see the Google Play Services drain though even with it not backing up, so I think my drain is coming from some other place.
Yeah, I am going to turn off background data, and if that's the culprit. I will play with each of the back up options. I only have a few enabled. I do have google photo's set to sync when on cell network or wifi, because I have unlimited data I do not care when they go up.
I noticed an odd bug when I unchecked google+ and google+ uploads as OFF/not sync, my google photo option to sync was gone. I enabled it, and it showed up. I have since rebooted a few times, and disabled those (did this an hour or so ago), and it will still sync, so maybe that was it? Will report back.
Currently enabled sync options:
app data
calendar
chrome
contacts
gmail
google opinion rewards
google photos
google photos backup
vivithemage said:
Yeah, I am going to turn off background data, and if that's the culprit. I will play with each of the back up options. I only have a few enabled. I do have google photo's set to sync when on cell network or wifi, because I have unlimited data I do not care when they go up.
I noticed an odd bug when I unchecked google+ and google+ uploads as OFF/not sync, my google photo option to sync was gone. I enabled it, and it showed up. I have since rebooted a few times, and disabled those (did this an hour or so ago), and it will still sync, so maybe that was it? Will report back.
Currently enabled sync options:
app data
calendar
chrome
contacts
gmail
google opinion rewards
google photos
google photos backup
Click to expand...
Click to collapse
I saw this after upgrading to the newest factory image. let things settle and it was back to normal on the next day. Also updated to play services 8.3.0.1
I actually tried to do a reinstall the other day, and it brought me up to 8.3.01 (2385995-440) ... which was what it previously had.
Are you saying you just wiped your phone and started from scratch again?
vivithemage said:
I actually tried to do a reinstall the other day, and it brought me up to 8.3.01 (2385995-440) ... which was what it previously had.
Are you saying you just wiped your phone and started from scratch again?
Click to expand...
Click to collapse
I didnt wipe anything. I flashed the system.img and vendor.img from the Nov. update and i then noticed that play services was eating up about 22% of battery on a normal cycle. Updated to 8.3.0.1 and after charging and watching on the second go around, it seems to be returning to normal. Down to 44% and play services has only eaten 4%.
elreydenj said:
I didnt wipe anything. I flashed the system.img and vendor.img from the Nov. update and i then noticed that play services was eating up about 22% of battery on a normal cycle. Updated to 8.3.0.1 and after charging and watching on the second go around, it seems to be returning to normal. Down to 44% and play services has only eaten 4%.
Click to expand...
Click to collapse
4% seems solid for 66% bat used... i'll try that if this doesn't work. Does flashing just system.img and vendor.img muck with any data?
maybe try wiping the cache partition -
Nexus 6P Wipe Cache Partition
Power Down the Nexus 6P
Boot the Nexus 6P into Fastboot Mode
Boot the Nexus 6P into Recovery Mode
Press the Volume Down Button to Control the Highlighter
Highlight the ‘Wipe Cache Partition’ Option in Recovery Mode
Then Press the Power Button to Select This Option
Make Sure the ‘Yes’ Option is Highlighted
Then Press the Power Button to Select This Option and Confirm the Wipe
Wait Until the Nexus 6P Wipes the Entire Cache Partition
Make Sure the ‘Reboot System Now’ Option is Highlighted
Then Press the Power Button to Reboot the Nexus 6P
http://www.androidexplained.com/nexus-6p-wipe-the-cache-partition/
What does wiping cache do again?
I disable.any Google apps I don't use ,which most if them,I have Google now always listening and I don't use chrome which seems to hit the battery,and play services is hardly ever in my battery list,but today a new play service update and reading reviews it's sucking battery by all accounts ,not seen it yet myself
I have wiped cache and I will report back.
After reboots it still is eating up battery like nobody's business. Bone stock not rooted too.
Wifi and bluetooth on, location set to device only. Google Now on, "okay google" detection from anywhere.
tluley51 said:
I have wiped cache and I will report back.
After reboots it still is eating up battery like nobody's business. Bone stock not rooted too.
Wifi and bluetooth on, location set to device only. Google Now on, "okay google" detection from anywhere.
Click to expand...
Click to collapse
i suffer no hardships doing this -
Battery Tips for Android
1. Toggle off High Accuracy GPS Mode, Bluetooth, NFC,
Hotspot/Tethering. Toggle on only as needed. (Set GPS Mode to "Battery
Saving" Mode).
2. Display Brightness - Turn off Auto Brightness and Reduce Setting
Bar to Minimum Acceptable to you.
3. Sign out of any unused Google Services like G+, Google Now, Hangouts, etc.
4. Disable Location Reporting and Location History.
5. Beware of constantly syncing in background Apps and Bloatware like
Facebook, Twitter, Weather Channel, Games, Google News/Weather,
Non-Push Email, etc. Set Sync interval for every 1 hour or more and
change settings to stop the syncing of data you don't need. Delete
their Apps and use their Web Page if acceptable.
6. Turn Off Hot Word "Hotword Detection" Always Listening Mode in
Google Search if you don't use it.
7. Turn Off Auto Camera/Photo Upload or at least set it for Upload on WIFI Only.
8. Turn Off Vibrate on Touch for Display, Keyboard, etc.
9. Turn Off Touch Sounds and Unlock Sounds.
10. Turn Off Ambient Display/Active Display Notifications if you don't need it.
11. Don't use a Live Wallpaper. Use a dark wallpaper if possible.
12. Set Display Sleep Setting to 2 Minutes or Less.
13. WIFI Settings - Advanced -
a. Network Notification - Set as OFF.
b. Keep WIFI on during Sleep - Set as ALWAYS if you regularly use
WIFI. OK to keep WIFI on if you regularly use it.
14. Scanning Always Available - Set as OFF - Wifi scans for networks
(location assist) in the background by default. Go to Settings >
Location > Overflow (three dots at top right) > Scanning and change
the setting for Wifi and Bluetooth.
15. Turn Off Always Vibrate in Gmail/Email.
16. Be careful of using too many Live Widgets and what/how often they sync.
17. Set MS Exchange Sync at 30 Days or Less if you use it.
18. Do NOT use a Task Killer App or Battery Saver App.
19. Uninstall ALL Apps that you never use. If you haven't used an
App in one month, uninstall it.
20. Reboot your phone at least once a month.
21. Wipe Cache Partition at least once a quarter or after every OS Update.
22. Consider a Factory Data Reset with a manual re-sync, manual
reinstall of all data and Apps after every major OS Letter Update.
Make sure that all of your data is first backed up to Google and
Dropbox, etc.
"I SUFFER NO HARDSHIPS DOING THIS" - this means that i personally am
giving up NOTHING with these tips. i'm not giving up any features.
there are no tradeoffs for me. a tradeoff or a hardship would be to
turn off PUSH email or use AIRPLANE mode during the day etc.
you have to find your own balance and the tips list is a start but you
must come to your own conclusion as to what's important. it's personal
preference but these are not a big deal to me at all as they do not
affect the function or operation of my phone. these tips do not
deteriorate my experience.
you don't HAVE TO do anything. the point is you if you want to
MAXIMIZE battery life you can turn things off that you aren't using.
it only makes sense. there is a FINITE amount of juice in ANY
battery. you choose how you want to spend that juice. by default most
of these devices have every feature set as ON whether you use them or
not. i prefer to change the settings in my phone to only use those
features that i personally use and need so i can maximize battery
life. i don't leave all the lights and TVs on in my house 24/7 - i
turn them on when i need them. i'm not giving anything up. my phone
does everything exactly like i want it to. i'm not missing out on
anything. it's no hardship for me. it's life. life is a delicate
balance. it's up to you to find that balance.
11-5-15
I am doing 70% of what you listed out, and google play services is currently at 3% of battery with 81% remaining, it's my highest user under screen with an hour. Don't get me wrong, great battery, but why is it using so much?
I wiped cache and it seemed to help a ton. Almost 3 hrs screen on time, 24 hours off charge, 35% battery remaining and Google Play Services is only at 3%. Much better.
its "Ok Google" "Always Listening"
I lost 12% in 7 hours overnight with it on and 1% with it off (On 4g)
Let me try wiping my cache then. Also, OK Google is not always listening, I never really use it anyway. I only use voice for texts sometimes.
tluley51 said:
I have wiped cache and I will report back.
After reboots it still is eating up battery like nobody's business. Bone stock not rooted too.
Wifi and bluetooth on, location set to device only. Google Now on, "okay google" detection from anywhere.
Click to expand...
Click to collapse
Bluetooth is your problem. I turned mine off and immediately my phone starting to sleep again.
I leave my BT on all the time, it only connects in the car though (40 minutes per day). I do not see bat drain for that. I also left it disabled for a day, same google services % usage.
vivithemage said:
I leave my BT on all the time, it only connects in the car though (40 minutes per day). I do not see bat drain for that. I also left it disabled for a day, same google services % usage.
Click to expand...
Click to collapse
what about Bluetooth Scanning? off or on? see #14 above on my list.
Gekko2 said:
what about Bluetooth Scanning? off or on? see #14 above on my list.
Click to expand...
Click to collapse
This has always been off, why would anyone even want it on. BTW, solid list, like I said, I do about 70% of it already.

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