Database Users

Super Evo Battery Tips and Explanations **Updated 1-22-11**

Over the months I have been an Evo user, I have collected some valuable information that all users should probably know in regards to maximizing battery life. Besides the stuff about 4G and a few specific options, these steps apply to pretty much any other android phone running 2.2, and a lot of them apply to versions below Froyo.
General Lithium Ion Battery Information
^^This link includes stuff about charging, including trickle charging aka SBC (Why NOT to use it, or at your own peril)
My tips for good battery life:
Tips for Non-Rooted users:
1. Turn off all radios when not in use.
(gps, Bluetooth, wifi, data, 4g) Use a widget like the default HTC power widget or Switchpro from the market. The radios of the phone draw power if on even if the user isn't actually utilizing the radio's functions.
To manually turn off radios without a toggle, go to menu>settings>wireless & networks.
Wifi uses less battery than 3G, so use wifi when you can.
**IMPORTANT DISCOVERY**When you turn on your 4G radio, then turn it off, it will keep scanning and turning off all by itself.
The problem is apparently exacerbated by a 4G toggle widget, which causes the phone to automatically turn on 4G at boot. This repeating of scanning and disconnecting severely drains battery life, and sadly, no matter what ROM or kernel you use, there is only one way to fix it:
-If you don’t use the toggle widget, then you have to reboot your phone after turning off 4G
-If you do use a toggle widget, then you have to remove the widget from your homescreens, then turn off 4G via settings, then reboot.
**To check to see if this is happening, download alogcat off of the market. Look for the lines saying: I/Wimax ( xxx): <DC> Try to establish a connection to DC server.
E/Wimax ( xxx): <DC CONNECT> IO error: msg=’/xxx.x.x.x:xxxx –
Connection refused’
Over and over again.
2. Juice Defender is one of my favorite apps. Basically it controls your data for you to maximize life.
More explanations are on their page, search it on the market for free, or upgrade for more features.
Here are my settings for it: Click me
Note that for me at least, juice defender likes to deny apps data privileges whether you allow them or not, so screen on = data on works best for me.
3. I love live wallpapers, and I’ve always been a fan of pixel zombies, but they are really only good for showing off due to their battery drain.
4. Go to menu<settings<wireless & networks<mobile networks<disable always on mobile data.
Product F(RED) said:
To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.
Click to expand...
Click to collapse
5. Set your screen timeout to something that fits you
This will prevent your phone from staying on when you don’t manually turn off the screen. Also with this, manually turn off your screen when you’re done with your phone.
6. Everyone has that issue where the first ten percent go the fastest.
This is due to two things. One is that these types of batteries stop charging once they get to 100% to prevent damage, and begin charging again at 90%. This means that you could potentially unplug your seemingly fully charged phone at 90% actual charge. The second is number 6.5.
6.5. Use the trick described in this thread, it works.
My idea behind how often you should do it is once a month, if you flash a new ROM, or if you stop noticing the benefits.
This is the calibration technique recommended by HTC themselves. Check it out!​
7. Task killers used to be the shiz, but no longer.
Here is the ultimate, in depth, graphically assisted, explanation by the famous Fresh ROM's chef, Flipz. Shortly, in light of recent testing, really don’t do anything but force apps that the android OS needed to be open, and thus didn’t close, to re-open. So try not using them, unless for stuff like trying to figure out why your phone isn’t sleeping with system panel. You really won’t notice a performance difference, and the adverse effects you aren’t seeing will stop
+=+ A good alternative is the application SystemPanel Pro. It has a free version, but I highly reccomend purchasing the paid app. It basically monitors everything going on with your phone's usage both in real time an in terms of usage history. If your battery is draiging fast, it tells you what app was doing it, how much it was doing it, and allows you to stop it.
8. People posting screenshots of the Battery screen as proof of long lasting battery are giving statistically irrelevant information.
See HERE That screen shows time since last REBOOT, not last charge. This isn't always the case, but a lot of people will post a lot of things about battery life, but look for definitive screenshots and testing results before you break down and cry due to the poster's life and yours.
9. I'm sure you have all heard around that your phone isn't "sleeping".
This is referring to the phone's "awake" time, hence the name. When you go to menu>settings>about phone>battery, you can compare the two numbers, "up time" vs. "awake time." Generally, up time refers to the amount of time since the last reboot. The "awake time" is how long the screen has been active. The problem is, a lot of the time, due to the endless possibilities of inconsistencies between apps/ROMs/kernels/phones, the phone will not go to "sleep", drawing power proportionate to the screen being in use when it reality the phone is sitting idle.
If you compare these numbers, and they are the same, or if you note the difference, turn off the screen for a minute, then re-check and they are the same, then your phone is not sleeping.
One solution is to reboot.
Usually, SystemPanel will show an app that has gone "rouge" and is keeping your phone awake.
Uninstall applications/reinstalling them slowly, checking after every install to see what is causing it is one tedious but surefire solution.
Lastly,
Follow these steps that I have discovered almost always work.
1. Reboot phone.
2. Instantly upon reboot, as soon as you gain control, open up some type of monitor/taskkiller
3. "kill all" tasks on startup; about 5 times in quick succession should do the trick.
4. Turn off the screen and leave it for about five minutes.
5. Check the up time v. awake time and see if they are the same.
6. If they are, repeat steps 1-5. If they are different, you are good.
Tips for Rooted users:
1. Try out custom kernels.
By going to the EVO 4G Android Development section of the forums, you can see all of the different kernels being developed. These allow for all kinds of modifications like underclocking the CPU and undervolting, both of which save battery. To see how to use them, read the FAQ's in each thread's OPs.
Here is a great guide to custom kernel's by mroneeyedboh.
2. Use SetCPU in compliance with whatever your custom kernel allows.
This site will explain the basics of SetCPU: http://www.pokedev.com/setcpu/
-Profiles from SetCPU should usually involve these for battery life optimization:
-Screen off at the minimum clock speed for both, with the max raised on level if sluggishness is apparent
-A temperature greater than “X”
-General power related profiles that lower cpu speed at lower battery levels
-Here are my SetCPU profiles: 1 , 2 , 3
-My profiles change a lot as time goes by, because different kernel creators recommend different settings. I suggest reading up on whatever kernel you are using to gather settings.
------------------------------------------------------------------------------------------------------
NOTES:
*Some apps or processes begin to run at startup and keep the phone awake. These apps are not detected by things like spare parts or system panel, unless sometimes represented in the "system" process, in which case its usage will be unusually high.
This shouldn't take more than three repeats, and if it does, you need to factory reset, and slowly add apps back to see what's causing the problem.
___--- When it comes to actually "calibrating" one's battery, there are a couple of methods floating around. The method I first learned is to charge the phone all the way, boot into recovery immediately, and "wipe battery stats". Then reboot quickly, and run your phone all the way to death without charging it, then charge it all the way without interrupting it, and you should be good to go. Do this when changing ROMs/kernels for best results.
----When it comes to people claiming 20 plus hours of moderate/heavy use out of their current setup or other ridiculous absurdities, consider my position: No matter what you do, the Evo battery is the Evo battery. You can tweak it and customize it with kernels, ROMs, and settings, but none of that will turn it into a car battery. The main problem (besides a false sense of pride) that leads to these reports is the misunderstanding of what the usage levels are, so here’s my best summary:
* *Light usage – Phone screen actually on for maybe 4 hours. Things like a few texts, some emails, 20 minutes web browsing, etc.
* *Moderate usage – You watched a few youtube videos or similar apps, sustained web browsing, hundreds of texts, some games. Hours range from about 5-10 of screen on
* *Heavy usage – LOTS of video watching and games, or some high def gaming/movie watching for at least an hour to an hour and a half in total, with lots of emails and texts, browsing, and other app shenanigans
*I’m sure everyone doesn’t agree with all these numbers, but this is most likely a good average of what powerusers think. All specific hourage may vary due to differences in phones, batteries, ROMs, and kernels… Which also means that most battery comparisons are pointless; it’s only what you can improve on that counts!
I’ll update this whenever I see good stuff, people remind me, or I remember/come across things I do.
Hope it helps everybody!
Hit the "THANKS" button if I help you!
*All this is available in the link in my signature

I just use the power widget for data instead of juice. Don't mind clicking it once before and after I turn the screen on. Also don't always use data when its on..
Sent from my PC36100 using XDA App

martyzidek said:
I just use the power widget for data instead of juice. Don't mind clicking it once before and after I turn the screen on. Also don't always use data when its on..
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I do that also, but the fact that juice only lets your stuff sync at a certain lengthy interval is what really makes it awesome. If you just disable the data period, your stuff won't sync correctly

I only have mail to sync and with that if I go into my mail it syncs. I go on Facebook on the browser so I don't use the app and deleted off my phone. Also I don't use Google mail or friendstream which is all deleted fully off my phone. So I don't have to worry. And most stuff that syncs on here to a set time will have a sync button or sync when you use or go into it anyways. So why not have it just sync when you actually check it? My 2 cents.
Sent from my PC36100 using XDA App

Great guide; good job!

I just turn off the background data, we have more than enough RAM to even need a task manager, I agree it sucks cpu usage and its tedious to close apps constantly and its only needed for low RAM phones these days anyway. Getting +6-8 hours use from a smart phone from moderste use is great Imo. I get great battery life already without much tweaking. I dont get what's the point of underclocking since the 1 ghz is one of the main selling points. I enjoy the obscene speed of the phone. Keep the screen dim and stay off the live wallpapers. Good write up!

Thanks for the tips and the profiles.

martyzidek said:
I only have mail to sync and with that if I go into my mail it syncs. I go on Facebook on the browser so I don't use the app and deleted off my phone. Also I don't use Google mail or friendstream which is all deleted fully off my phone. So I don't have to worry. And most stuff that syncs on here to a set time will have a sync button or sync when you use or go into it anyways. So why not have it just sync when you actually check it? My 2 cents.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I appreciate your thoughts, but it's just as you said: "I only have.." etc. Other people do it differently, so these tips should help THEM. Glad you know what works for you though

phatmanxxl said:
I just turn off the background data, we have more than enough RAM to even need a task manager, I agree it sucks cpu usage and its tedious to close apps constantly and its only needed for low RAM phones these days anyway. Getting +6-8 hours use from a smart phone from moderste use is great Imo. I get great battery life already without much tweaking. I dont get what's the point of underclocking since the 1 ghz is one of the main selling points. I enjoy the obscene speed of the phone. Keep the screen dim and stay off the live wallpapers. Good write up!
Click to expand...
Click to collapse
bigmoogle said:
Thanks for the tips and the profiles.
Click to expand...
Click to collapse
bludragon742 said:
Great guide; good job!
Click to expand...
Click to collapse
Thanks y'all! Please vote on the poll and rate so more people can see this for longer
Glad it's helping

abkrieger said:
I appreciate your thoughts, but it's just as you said: "I only have.." etc. Other people do it differently, so these tips should help THEM. Glad you know what works for you though
Click to expand...
Click to collapse
Anything that syncs has an option somewhere on the widget or app. All you do is hit the refresh button and updates. Same with mail. I go into my mail and it then syncs. So if its that important for friendstream or Facebook to update and sync to a certain setting then by all means juice is for you. Just a waste of battery.
Sent from my PC36100 using XDA App

martyzidek said:
Anything that syncs has an option somewhere on the widget or app. All you do is hit the refresh button and updates. Same with mail. I go into my mail and it then syncs. So if its that important for friendstream or Facebook to update and sync to a certain setting then by all means juice is for you. Just a waste of battery.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Say for example I have:
Weather widget on homescreen, fb widget, friendstream, news widget, two mail apps in background, google voice for vm...
-To name a few. If you use all of these, then you wouldn't also want to:
Refresh weather widget by clicking on it, which pulls up the menu, then clicking refresh - then clicking on your fb widget, which brings up the menu, and hitting refresh - going to friendstream, clicking on it, menu, refresh - same for news widget - same for mail apps - google voice...
The mail and google voice update in the background, and unless you want them always checking, or going in when you remember and telling it to refresh, the best option is to limit when it has access based on YOUR schedule.
The point of widgets is one-look convenience. Two clicks to sync a widget, taking you off the homescreen, defeats the purpose. Maybe not for you, but most people.
Now, adding all those up, that would be about 15 taps on the screen, taking all over the place, just to have your apps/widgets do what they are supposed to do. No thanks. I would rather click zero times, and have EVERYTHING sync at one time, in intervals of my choosing.
To each his own I guess

You use setcpu with kingxkernal?

phatmanxxl said:
I just turn off the background data,
Click to expand...
Click to collapse
exactly what is the background data?
what data gets synced in the backgrounds? and if u turn that off, when does it actually sync that data?

SayWhat10 said:
exactly what is the background data?
what data gets synced in the backgrounds? and if u turn that off, when does it actually sync that data?
Click to expand...
Click to collapse
You would manually have to sync data.

c_l021 said:
You use setcpu with kingxkernal?
Click to expand...
Click to collapse
No I've stopped using it with the kingkernels as per his request.
EDIT: It's supposedly HAVS kernels in general.
JUST BUMPIN THE THREAD.

To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.

Great thread... I have found a good tsk killer called "system panel" it cost a cpl bucks in the market but its worth it... Old task killer apps stored working when froyo was released... System panel still works, plus it gives you a lot more control over your phone by telling you what is using what from your battery... In conjunction with juice defender... Too have the best offense to defend your charges!
Sent from the MATRIX... while plugged into my EVO... using the XDA app... from a galaxy far-far away.......

JayStation3 said:
Great thread... I have found a good tsk killer called "system panel" it cost a cpl bucks in the market but its worth it... Old task killer apps stored working when froyo was released... System panel still works, plus it gives you a lot more control over your phone by telling you what is using what from your battery... In conjunction with juice defender... Too have the best offense to defend your charges!
Sent from the MATRIX... while plugged into my EVO... using the XDA app... from a galaxy far-far away.......
Click to expand...
Click to collapse
I've had system panel pro since the day I bought my phone

Product F(RED) said:
To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.
Click to expand...
Click to collapse
I'll add this to the OP, thanks for the clear description!

Biofall said:
Over the months I have been an Evo user, I have collected some valuable information that all users should probably know in regards to maximizing battery life. Here they are
My tips for good battery life:
1. Turn off all radios when not in use (gps, Bluetooth, wifi, data, 4g) using a widget like the default HTC power widget or Switchpro from the market.
To manually turn off radios without a toggle, go to menu>settings>wireless & networks
^^^^**** IMPORTANT DISCOVERY****^^^^
When you turn on your 4G radio, then turn it off, it will keep scanning and turning off all by itself.
The problem is apparently exacerbated by a 4G toggle widget, which causes the phone to automatically turn on 4G at boot. This repeating of scanning and disconnecting severely drains battery life, and sadly, no matter what ROM or kernel you use, there is only one way to fix it:
-If you don’t use the toggle widget, then you have to reboot your phone after turning off 4G
-If you do use a toggle widget, then you have to remove the widget from your homescreens, then turn off 4G via settings, then reboot.
**To check to see if this is happening, download alogcat off of the market. Look for the lines saying: I/Wimax ( xxx): <DC> Try to establish a connection to DC server.
E/Wimax ( xxx): <DC CONNECT> IO error: msg=’/xxx.x.x.x:xxxx –
Connection refused’
Over and over again.
5. Go to menu<settings<wireless & networks<mobile networks<disable always on mobile data
Click to expand...
Click to collapse
Wow, this is awesome man. #1 is a huge discovery for sure. we just got 4g here recently and I started having this huge battery drain problem. I have been monitoring my phone with system panel and found "suspend" to running my cpu full bore 100% of the time.
if your search for suspend you can find a few threads here and over at androidforums. no one had seemed to find the issue of why suspend is always running. but it is for me definitely being caused by 4g as you describe.
I didn't think it was 4g because I found a wimax process at 0%
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but after playing with 4g and your ideas here I can make this suspend start and stop at will now.
some screen shots of system panel with the suspend issue on.
here are some screen shots after finding this thread last night around midnight and killing 4g and rebooting.
thanks, this saved me from loading up an older nandroid that I didn't have this issue. but now I know its not rom or app related.
here is what I did to stop suspend/4g from running. I keep mobile data always on unchecked. and I use a 4g toggle from switch pro (well not anymore)
I turned off 4g through my toggle. reboot phone, suspend is still running and the phone will not sleep. I then go into settings - wireless & networks - mobile networks, I then check mobile data always on and then uncheck it. suspend will now stop and phone will sleep. data always on check and uncheck only works after a reboot.
anyways I think this find is awesome! and maybe we should mention that this 4g problem and this suspend process are one in the same. as it seems people have been having this suspend process problem for months on end with no solution.
I really didn't think it could be 4g as I saw wimax process at 0% and a simple reboot didn't end it. I thought it had to be an app.
thanks bro

Solution to battery life issues (works 100%, guaranteed)

I love this phone and have posted this on several forums already. I want everyone to enjoy it as much as I do.
I switched from an IPhone 4 to the Atrix and I am really impressed by the device. HOWEVER, I was very close to return the phone due to poor battery life (in comparison the IPhone 4). The max I got out of the device was 14-16 hrs and the strange thing was that it did not make ANY difference whether I hardly used the phone at all or played around most of the time. Over the weekend I checked and after unplugging the phone from the charger and leaving it on the desk the battery was down to 70%.
By the end of the day on my IPhone I used to have about 30% battery left with all radios (3g, bluetooth, wifi, GPS) on and moderate use. With similar use and GPS off the Atrix hardly made it through the day. I read several suggestions and wanted to share how I increased battery life by almost 100%!! Like mentioned earlier I was puzzled that even in idle status there was a 10-15% drain. The only logic explanation was that there are services that continue in the background and drain the battery.
1. I think the absolute biggest battery drain is to enable wifi triangulation for location services. The fact that the pop-up window states "...Collection will occur even when no applications are running." should have made my suspicious. I have noticed that enabling the GPS does not have any significant effect on battery life as long as you do not have any applications open that use that radio (like maps). Obviously I disable the wifi option in location services.
2. Root your phone and download Titanium Backup PRO. Disable all Motoblur services. I do not use any Motoblur widget/services (no facebook, twitter and so on) and am happy with the native gmail client. I literally froze allmost all of the motoblur services as well as other services that may use data services in the background (news, weather services).
Following link gives a good overviw which services can be disabled without any problems:
Death-Force • Thema anzeigen - [TIP][Tutorial] Freeze Motoblur for more Performance and RAM
3. I haven't really found it helpful to use setcpu. Whats the point of having a ferrari and driving it at 30 mph?
Since making those changes I have seen a significant increase in battery life. Using the gmail client, bluetooth+GPS+wifi+3g on, screen set to auto-brightness and mdoerate use throughout the day I make it easily throughout the day with the battery indicator showing in general 30-40%. I think step 1 made the biggest difference. Again, this phone is just amazing and I do not miss my IPhone at all!

No way!?!?
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We've landed on the Moon!!!!

bimbocoles said:
3. I haven't really found it helpful to use setcpu. Whats the point of having a ferrari and driving it at 30 mph?
Click to expand...
Click to collapse
Because you don't want your Ferrari to use up gas while you're not driving it?
With SetCPU, you can set a profile for it to throttle down several hundred mhz whenever the display turns off. I find that even background services like Pandora can run perfectly fine even when that dualcore "ferrari" of a machine has the display off at half the ghz.
Using setCPU alone, I feel like me battery life doubled. I recently froze motoblur in its tracks and only provided minimal increase compared to just underclocking it.

acPIZZA said:
No way!?!?
We've landed on the Moon!!!!
Click to expand...
Click to collapse
lol, thats the best thing i have seen all day!!

hondaguy said:
lol, thats the best thing i have seen all day!!
Click to expand...
Click to collapse
my trolling = quotes and screen shots of Dumb and Dumber.

its amazing how experiences vary from user to user. i had installed setcpu the 2nd day that i had the atrix and didnt really notice a big improvement (with it properly set up to save battery). i froze the blur settings and the weather widgets and can easily get through a heavy days usage. i find the atrix is at least as good, if not better when it comes to battery life.
i leave the wifi and cellular location option on and my battery life is great. i dont have widgets or apps running in the background that need my location and i even say no when google asks for permission to use my location for better search results. disabling this feature would make a big difference for people that use location aware apps often but i find it takes far too long to get a good gps lock when using maps if this feature is off.
as long as you are happy with your battery life, thats all that matters

Never used setCpu on my phone. battery lasts for awhileeeeeeeeeeeeeee!

setcpu is not necessary the cpu automatically throttles down when not in use, the phone doesnt run at 1ghz all time...
ive noticed with the atrix you need to turn off gps when you are not using it or it will still be on even when no apps are using it. my captivate used to turn off gps when i exited an app that was using it. im not sure if this is the case with wifi too.

After playing a long time with phone I found synchronized apps like talk, gmail, take up most of the battery.

hondaguy said:
lol, thats the best thing i have seen all day!!
Click to expand...
Click to collapse
yeh that was hilarious... well played sir..

neotekz said:
setcpu is not necessary the cpu automatically throttles down when not in use, the phone doesnt run at 1ghz all time...
ive noticed with the atrix you need to turn off gps when you are not using it or it will still be on even when no apps are using it. my captivate used to turn off gps when i exited an app that was using it. im not sure if this is the case with wifi too.
Click to expand...
Click to collapse
my gps turns off when i'm not using an app that needs it

acPIZZA said:
No way!?!?
We've landed on the Moon!!!!
Click to expand...
Click to collapse
flawless first response

neotekz said:
setcpu is not necessary the cpu automatically throttles down when not in use, the phone doesnt run at 1ghz all time...
ive noticed with the atrix you need to turn off gps when you are not using it or it will still be on even when no apps are using it. my captivate used to turn off gps when i exited an app that was using it. im not sure if this is the case with wifi too.
Click to expand...
Click to collapse
Can anyone confirm this? I would really prefer not to use setcpu unless I have to

Android system drain is killing me

I see people getting up to 6h of screen time, I can barely get 3,3.5h. Android system is constantly my biggest drainer.
I'm rooted, I disabled all bloatware I can think of. I'm still new to the phone and I don't know what else to disable. I even disabled Google Now completely.
GPS off ,WiFi on, 3g signal is good, auto sync is on. I lose about 10% over night while doing nothing.
Any ideas?
This is on very light usage, about 45min of screen time, some texting and calls only.
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Google play service and backup is too high
-Open setting - Backup & Reset - Uncheck everything
-If you enabled location try to disable it

Xenovias said:
Google play service and backup is too high
-Open setting - Backup & Reset - Uncheck everything
-If you enabled location try to disable it
Click to expand...
Click to collapse
I have titanium backup so I'll disable Google backup completely.
About location services, should I disable it for Google apps only(under Google settings) or system wide via settings> location access?
Sent from my LG-D802 using Tapatalk

Do the following one by one and observe your battery life after each try
1. Disable Google backup
2. Disable Google Location Access
3. Disable Android Location Access (the one with gps and mobile network)
4. Disable knock on/off sensor

revan17 said:
I have titanium backup so I'll disable Google backup completely.
About location services, should I disable it for Google apps only(under Google settings) or system wide via settings> location access?
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
You disabled google backup or LG Backup?
The problem is LG backup,
Just from setting is enough

Xenovias said:
You disabled google backup or LG Backup?
The problem is LG backup,
Just from setting is enough
Click to expand...
Click to collapse
I have removed LG backup via titanium backup completely.
votinh said:
Do the following one by one and observe your battery life after each try
1. Disable Google backup
2. Disable Google Location Access
3. Disable Android Location Access (the one with gps and mobile network)
4. Disable knock on/off sensor
Click to expand...
Click to collapse
I've now disabled Google backup and location access and in the 30 mins I'm on battery, Android system is still the biggest drainer.
I'm gonna try disabling knock on now.
Sent from my LG-D802 using Tapatalk

revan17 said:
I have removed LG backup via titanium backup completely.
I've now disabled Google backup and location access and in the 30 mins I'm on battery, Android system is still the biggest drainer.
I'm gonna try disabling knock on now.
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
Im telling you now something is terribly wrong because i have none of that disabled and Im getting an average of 38 hrs and thats not completely dead

antawnm26 said:
Im telling you now something is terribly wrong because i have none of that disabled and Im getting an average of 38 hrs and thats not completely dead
Click to expand...
Click to collapse
In data settings are you on global or something else? global will use more so you may see people getting better results but if the are on 3g/lte for example, the phone isn't constantly searching for the global connection.

I'm not on international but 3g/lte
Sent from my LG-D800 using Tapatalk

Went to sleep with 100%, woke up with 89%. I installed wakelock detector and it seems Swype was keeping my phone awake for 3h. I uninstalled it and will see if that fixes the issue.
I just don't understand why android system was registered as the main culprit in both Gsam and BBS.

revan17 said:
Went to sleep with 100%, woke up with 89%. I installed wakelock detector and it seems Swype was keeping my phone awake for 3h. I uninstalled it and will see if that fixes the issue.
I just don't understand why android system was registered as the main culprit in both Gsam and BBS.
Click to expand...
Click to collapse
That's a good sign, at least you can identify which app is the culprit.

revan17 said:
I just don't understand why android system was registered as the main culprit in both Gsam and BBS.
Click to expand...
Click to collapse
Keyboard. Swype has had this issue since forever ago on the G2. All its network bs, voice crap, ect. Figured they would of fixed it by now. I've been happy with stock LG keyboard.

votinh said:
Do the following one by one and observe your battery life after each try
1. Disable Google backup
2. Disable Google Location Access
3. Disable Android Location Access (the one with gps and mobile network)
4. Disable knock on/off sensor
Click to expand...
Click to collapse
It seems the only thing which gets down the Android system drain is number 4,disabling knock on. But I like that feature. :-/
Sent from my LG-D802 using Tapatalk

revan17 said:
It seems the only thing which gets down the Android system drain is number 4,disabling knock on. But I like that feature. :-/
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
Weird, isn't it?
Now, it's your choice to enable or disable it but at least, you know the culprit.

I don't get why it's displaying as gravity sensor. The Doubletap uses the touchscreen, nothing to do with accelerometer / rotation / tilt. I still say it's a software bug... this has been reported numerous times, still baffles me, never see it.

Here is another thread about this problem
http://forum.xda-developers.com/showthread.php?p=49091519#post49091519
But we still need a fix.

revan17 said:
GPS off ,WiFi on, 3g signal is good, auto sync is on. I lose about 10% over night while doing nothing.
Any ideas?
Click to expand...
Click to collapse
Simple. Turn KnockOn off and Android system will never again go that high. The touch screen drains power when idling waiting for you to knock on
---------- Post added at 12:38 PM ---------- Previous post was at 12:34 PM ----------
freakin.ro said:
But we still need a fix.
Click to expand...
Click to collapse
There will be no fix. How could you fix touch screen to not drain power if waiting for knock on? How? It's physics and you can't fix physics

Billy Madison said:
Simple. Turn KnockOn off and Android system will never again go that high. The touch screen drains power when idling waiting for you to knock on
---------- Post added at 12:38 PM ---------- Previous post was at 12:34 PM ----------
There will be no fix. How could you fix touch screen to not drain power if waiting for knock on? How? It's physics and you can't fix physics
Click to expand...
Click to collapse
That may very well be, but it's not logical that such a simple feature uses more power than the screen itself.
Sent from my LG-D802 using Tapatalk

Android system is almost always at the top of my list as well. As suggested, turned off knock on/off and disabled the LG backup option.

revan17 said:
That may very well be, but it's not logical that such a simple feature uses more power than the screen itself.
Click to expand...
Click to collapse
the screen works, like, 3-5 hrs. And touch screen is 10-20 hrs constantly drains. Even if touch consumes way less current it does it long period of time hence power drainage.
So if your G2 primarily lays in pocket and you don't wake it up every hour or half an hours simply turn knockon off and use power key as I do and be happy :laugh:
What is more powerconsuming is NLP in 4.4 kitkat which you can't turn off at all and THAT is the power drain which IS REAAAALLY BAAAAAAAAAD. I hate Google, the NSA beach

[Q] Battery Drain issues , need help !!!

location service off for google apps, gps off (only wifi network location enabled), 3g data most of the time . and why such wakelocks ?
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thats what I ussually get, seems normal to me being on Data all the time.

There's an app called cpu Spy in play store, install it and check whether ur phone goes into deep sleep or not
Sent from my LG-D802 using XDA Premium 4 mobile app

G1_enthusiast said:
thats what I ussually get, seems normal to me being on Data all the time.
Click to expand...
Click to collapse
screen on time is just wayy too less for such battery capacity ! somethings not right,
jaidev.s said:
There's an app called cpu Spy in play store, install it and check whether ur phone goes into deep sleep or not
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
phone is awake at least 8-9 hours out of 20 and only 4 hr screen on time is not normal ! phone sleeps at times but not always ! its not an app keeping it awake as i have all apps greenified

disable sync and download wakelock detector.
Sent from my LG-D802 using xda app-developers app

masteril said:
disable sync and download wakelock detector.
Sent from my LG-D802 using xda app-developers app
Click to expand...
Click to collapse
i need sync enabled for contacts , rest all are disabled under google account ! no other accounts are being synced ! and wakelock detector doesnt who any wakelocks !

If you can't find the source of the drain try a factory reset.

We went through so many threads like that, my man.
Do a search.
For the headup, assuming that you have already turned off Android location access, turned off Google location access, turned off auto-sync (I know you said you needed it but just for now, off it), turned off gps/mobile networks, do the following
a. disable Knock On/Off feature
b. disable CIQ (if you don't have CIQ, then ignore this step)
Note: do one by one and make an observation how the battery life behaves after each change.
Oh, btw, reboot the phone, say, right after unplugging the charge.

votinh said:
We went through so many threads like that, my man.
Do a search.
For the headup, assuming that you have already turned off Android location access, turned off Google location access, turned off auto-sync (I know you said you needed it but just for now, off it), turned off gps/mobile networks, do the following
a. disable Knock On/Off feature
b. disable CIQ (if you don't have CIQ, then ignore this step)
Note: do one by one and make an observation how the battery life behaves after each change.
Oh, btw, reboot the phone, say, right after unplugging the charge.
Click to expand...
Click to collapse
yup done all of that ! still same result ! even turned off fast dormancy as my network provider doesnt support it ! im not a noob to simply open up a thread in the q and a section. i might be new to this phone, im not new to android. anyways is your android OS staying awake ?

shriom_manerker said:
yup done all of that ! still same result ! even turned off fast dormancy as my network provider doesnt support it ! im not a noob to simply open up a thread in the q and a section. i might be new to this phone, im not new to android. anyways is your android OS staying awake ?
Click to expand...
Click to collapse
In term of battery life, I was considering myself as one of the unlucky one but after done all those, I got pretty good result. Normally last about 3 days with 6 hrs screen-on time and 4 hrs talk time. No wakelocks

votinh said:
In term of battery life, I was considering myself as one of the unlucky one but after done all those, I got pretty good result. Normally last about 3 days with 6 hrs screen-on time and 4 hrs talk time. No wakelocks
Click to expand...
Click to collapse
you should know better than to give stats.... standby hours and battery life is varied alot by user, ambient temperature and etc.
OP if you feel thats not right, flash another rom see if it help, I'm using energy rom, its good for me so far.

Try remove some bloat and apk with titanium... A regular user can often remove 100 apk from these roms! And use bootmanager and greenify! Greenify is must have!

votinh said:
In term of battery life, I was considering myself as one of the unlucky one but after done all those, I got pretty good result. Normally last about 3 days with 6 hrs screen-on time and 4 hrs talk time. No wakelocks
Click to expand...
Click to collapse
i guess theres something wrong with my phone then (the software ) ,hopefully kitka update will fix it

G1_enthusiast said:
you should know better than to give stats.... standby hours and battery life is varied alot by user, ambient temperature and etc.
OP if you feel thats not right, flash another rom see if it help, I'm using energy rom, its good for me so far.
Click to expand...
Click to collapse
alright thanks
Dirtyzecret said:
Try remove some bloat and apk with titanium... A regular user can often remove 100 apk from these roms! And use bootmanager and greenify! Greenify is must have!
Click to expand...
Click to collapse
i havent rooted it as yet , i will after the ota to 4.4 ! anyways i do have greenify and ive greenified facebook and other wakelock creating apps. its only that lameass android os keeping my device awake for hours !

shriom_manerker said:
alright thanks
i havent rooted it as yet , i will after the ota to 4.4 ! anyways i do have greenify and ive greenified facebook and other wakelock creating apps. its only that lameass android os keeping my device awake for hours !
Click to expand...
Click to collapse
I know, but if you are the same as me, you will NEVER be 100% happy with your phone before you root it and do you own tweaking.

shriom_manerker said:
i guess theres something wrong with my phone then (the software ) ,hopefully kitka update will fix it
Click to expand...
Click to collapse
Don't hope, fix now.
If I was you, I would backup all my important personal info on the phone and factory reset it.
I would do those tricks one by one w/o installing any app yet and see how the battery fares after each charge.
General speaking, we need to understand the root cause and find the solution from there, if it needs to be rooted to fix the problem then you root it otherwise, blindly rooting and assuming everything else will fix isn't the right way to debug.

votinh said:
Don't hope, fix now.
If I was you, I would backup all my important personal info on the phone and factory reset it.
I would do those tricks one by one w/o installing any app yet and see how the battery fares after each charge.
General speaking, we need to understand the root cause and find the solution from there, if it needs to be rooted to fix the problem then you root it otherwise, blindly rooting and assuming everything else will fix isn't the right way to debug.
Click to expand...
Click to collapse
fact reset done , only whatsapp installed. same issue so i installed my other apps as well. im guessing its a kernel issue

New firmware V2.19.40.18 (available now !)

Another update from Asus is rolling out!
【Version】
V2.19.40.18_20150612 (ZE551ML)
V2.19.40.12_20150612 (ZE550ML)
【Release Date】
2015/06/18
【Release Note】
1 Update phone APN version to 105.
2 Update Houdini 5.0.2
3 Fixed camera can not open sometimes when using zenflash
4 Improve volume of recording video will increase and decrease alternately.
5 Do not config Routing.Configure.HWCodec.Playback.Mixers.Headset when using FM.
6 Fixed some BLE device can not auto reconnect
7 Improve service stability
8 Improve modem stability from crash
9 Improve call stability
10 Improve signal bar stability for sim 2
11 Quick Settings: Change "Reading Mode" button as "Bluelight filter"
12 Improve SysteM UI stability and modify Japanese strings
13 Improve lockscreen UI and stability
14 Fix Homescreen Wallpaper randomly lost previous settings and half black screen issue
15 Snap View-add reset Snap View password function
16 Fix Contacts search failure issue when default language was set as HK Chinese
17 Improve Auto start manager stability and fix FB broadcast issue
18 Improve Task Manager UI and rotation stability
19 Fix calculator stability issue and UI bug under Quick Memo App
20 Improve Launcher and Multi user stability from System and framework
21 Fix Google Voice incoming call source issue and the failure to change to Google Voice number
22 Fix the issue that miss call counts failed to disappear on home when Multi user
23 Improve File Manager stability
24 Add ASUS ZenUI PC Suite
25 Fix all touch gestures to be enabled when change back to owner mode
26 Fix ASUS Browser issue
27 Fix the issue that Audio Wizard cannot be launched when turn off BT
28 3rd party app update
29 Update touch FW
30 Update JP IME ATOK to v 1.0.1
31 Modify Japanese strings in Power Saver App
32 Fixed turn on the camera must unlock by using zenmotion issue
33 Fixed an error message shows up after removing privacy mode and adding new user immediately issue.
34 Fixed wallpaper needs to have second clicks for reaction issue.
35 Fixed built-in browser features a new incognito window has no effect issue.
36 Fixed close contacts shows other programs issue.
37 Fixed built-in calendar Click settings will flash issue.
38 Fixed ringtones into vibrate mode when the camera is off camera sounds issue.
39 Fixed volume keys to adjust the ring abnormaliy issue.
40 Fixed wallpaper Figure has been broken issue.
41 Fixed after the system optimization, message management have stopped running issue.
42 Add Battery charging ready reminder feature.
43 Enable FM Radio for Turkey.
Click to expand...
Click to collapse

"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!

I saw the update but they deleted it on their download support page for now.

SBFarooq said:
"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!
Click to expand...
Click to collapse
I am optimistic about the development department of Zenfone, atleast they are working deep enough about their flagship. The battery drainage is an issue for almost every Android L(5.0) user. I hope this issue will be fixed after we get update for 5.1.1 .
Asus is also expending their QA inspection team this will help for the end user to have stable releases afterwards.
Thumbs up Asus for the efforts.

I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.
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"lightbox_stop_slideshow": "Stop slideshow",
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"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my ASUS_Z00ADA using Tapatalk

corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
so does this mean your device is running on CN firmware? so maybe the biggest culprit for battery drain in WW is google playstore and other gapps, because CN firmware didnt preinstalled with gapps..

corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
Trust me. The battery life is aweful and is not just down to user error. I've used many, many android devices set up using similar parameters. Wether android 5.0 is to blame or something else, it is not my user error causing my excessive battery drain.

SBFarooq said:
"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!
Click to expand...
Click to collapse
Um, what issue are you talking about and why are you jumping to conclusions? Don't jump to conclusions. You literally have no idea what ASUS' intent is and why would you complain when our phone has received an update every 2wks so far?
---------- Post added at 02:53 PM ---------- Previous post was at 02:49 PM ----------
bobsie41 said:
Trust me. The battery life is aweful and is not just down to user error. I've used many, many android devices set up using similar parameters. Wether android 5.0 is to blame or something else, it is not my user error causing my excessive battery drain.
Click to expand...
Click to collapse
Um, even with Android OS battery usage at 21% and screen at 12%, according to batt stats screen, I still managed around 5.25hrs SoT.... With 32% battery left.
Granted this is just from last night to this morning and is mainly just Web browsing and playing some music (was up late couldn't sleep!). WiFi/Bluetooth/GPS/autosync on.I've frozen/disabled most pre-installed apps and services.

Glad to see updates with Google Voice, I've had some issues with outgoing calls not using voice.

I am not jumping to conclusions... Merely stating the obvious statement made by Asus... Secondly.. I believe in Asus and their commitment to this device .. But building up another wakelock is not the way to go IMO..

dasklney said:
I saw the update but they deleted it on their download support page for now.
Click to expand...
Click to collapse
Yup they removed it.
Posted using my phone.

jose makalolot said:
Yup they removed it.
Posted using my phone.
Click to expand...
Click to collapse
Yes, but you still can download with the old link

dasklney said:
Yes, but you still can download with the old link
Click to expand...
Click to collapse
Old does not work either.
Posted using my phone.

cangcan said:
so does this mean your device is running on CN firmware? so maybe the biggest culprit for battery drain in WW is google playstore and other gapps, because CN firmware didnt preinstalled with gapps..
Click to expand...
Click to collapse
Yes, that's why I'm running with CN for a while. I don't have to have google apps as system apps. Once I have a setup I'm happy with I'll back up and test it for a while with them moved to system to see if there is any difference. I'll then switch to WW and compare that. (I'll also pick up my google drive offer at that stage.)
It has lost about 3% overnight so it's heading for about 6 - 7 hours SOT. I'm guessing that that will drop to about 5 hours in normal use given other people's reports.
I've already ruled out the android OS in battery stats as causing any real drain. I've encountered this before with a previous device. All the manufacturer did was adjust the way battery stats was reported. There was no underlying bug to fix.
I'm taking things slowly and methodically with setup so if I do run into any real battery issues I should be able to easily identify the culprit(s).
I'll take the OTA some time in the next day or so and see how it compares. I'll feed back in this thread but I guess the WW update will be out by then.

jose makalolot said:
Yup they removed it.
Posted using my phone.
Click to expand...
Click to collapse
dasklney said:
Yes, but you still can download with the old link
Click to expand...
Click to collapse
jose makalolot said:
Old does not work either.
Posted using my phone.
Click to expand...
Click to collapse
they haven't deleted it... here is the direct link http://dlcdnet.asus.com/pub/ASUS/ZenFone/ZE551ML/UL-Z00A-CN-2.19.40.16-user.zip
Source: https://www.asus.com/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/

corrsea said:
Yes, that's why I'm running with CN for a while. I don't have to have google apps as system apps. Once I have a setup I'm happy with I'll back up and test it for a while with them moved to system to see if there is any difference. I'll then switch to WW and compare that. (I'll also pick up my google drive offer at that stage.)
It has lost about 3% overnight so it's heading for about 6 - 7 hours SOT. I'm guessing that that will drop to about 5 hours in normal use given other people's reports.
I've already ruled out the android OS in battery stats as causing any real drain. I've encountered this before with a previous device. All the manufacturer did was adjust the way battery stats was reported. There was no underlying bug to fix.
I'm taking things slowly and methodically with setup so if I do run into any real battery issues I should be able to easily identify the culprit(s).
I'll take the OTA some time in the next day or so and see how it compares. I'll feed back in this thread but I guess the WW update will be out by then.
Click to expand...
Click to collapse
Everything you have said is exactly what I said even down to the G2 similarities. I see no issue with battery in comparison to other android phones.
Sent from my ASUS_Z00AD using Tapatalk

Did it fix the notifications bug?

7. Fixed some BLE device can not auto reconnect
Click to expand...
Click to collapse
I hope this update fix the issue of my Mi Band can not auto reconnect

The file size is over 1 Gb, this OTA should be contain a lot of fixes... i hope ....

CN 2.19.40.16 is removed again from ASUS website. (https://www.asus.com/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/)
I guess it got some serious BUG that has made ASUS remove it
=============================
corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
Are you sure by TURNING OFF ASUS Battery Saver will Make this phone has a lot better battery life?