Develop Bugs

Crazy battery usage after OTA 1.72.405.3 How to find out what is going wrong?

Hi all,
After instaling OTA 1.72.405.3 the android system is eating away my battery like crazy.
After 5 hours my battery was down to 29% (71% was used) and the android system was responsible for 60% of this. In my CurrentWidget log I can see that (with the phone in standby) it uses ~130 mA to ~160 mA.
Does anybody know what is going on or can anybody help me by telling how to find out what is going on?
[edit: If you have the same problem, please post a reply so we can find out if this is a big problem! Thx]

This happened to me yesterday! Found out that the system process had pegged out the CPU @ 100%
I couldn't fix it, and in the end restored to factory settings. Has been OK today but I killed the battery in about 4 hours.

Radio and kernel updated?
Sent from my Desire HD using XDA App

yes, i have the same problem! i posted another thread about it (titled constant sync after OTA update) as i first noticed the issue when the sync icon was always being displayed.
today my battery hit 20% after 6 hours with android system taking up 50% of the battery usage. its ridiculous!
if anyone has a workaround or a quick fix please post it up - this is untenable!

I have exactly the same issue, no problem with battery life before the latest OTA, and now the phone is dead within 8 hours with no usage, simply in the pocket with the display off.
Not happy at all, the phone is virtually unusable at the moment as any action accelerates the drain.

Strange! My phone is now with more battery life, after the update. It is SIM free ...
Sent from my Desire HD using XDA App

I posted this in another thread -
There seems to be a bug in the update for anyone who had HTCSense.com sync'ing turned on. Either disable all sync'ing for that and / or sign out of that account. It was consuming 100% of my CPU cycles and keeping the processor at the 1ghz mark. Once I disabled the HTCSense.com sync and rebooted the phone, all is good. I went from 100% CPU usage to about 4% and less when idle.
Personally, I'm not sure about HTCSense.com anyways. Way to buggy. I have all my SMS's backed up with SMSBackup+ to my Gmail and my contact / calendar is on Google. I've Wave Secure to lock down the phone if needs be / to find it. I think it's more reliable as well as I used to get a lot of "can't connect to the phone" on HTCSense.com and Wave secure uses at Text Message based system to activate the necessary features along with locking down the phone if the sim is removed / replaced! NICE!
Anywho, anyone who is having battery problems / finding the CPU is topepd at 100% try the above and see!!
Click to expand...
Click to collapse
I followed up with this:
I must say, I'm quite impressed with the battery life since the update (after I got rid of the 100% CPU bug).
I plugged the phone out at 11am this morning. Quite heavy texts (50+ sent today and at least that received). 10+ calls (incoming and out going) at 3-10mins each. Some Angry Birds, Some Market Updates. Disconnected my Facebook Acc and reconnected to cure a bug in the calendar (facebook entries were there twice), so all that data had to reload. Twitter usage through out the day. WiFi on all day. GPRS Radio only.
Now at 12.15am (so over 13 hours later), I've still got 50% Battery left! I would NEVER have gotten that previously. Not with the heavy use I gave it today.
How are other people finding it!?
Click to expand...
Click to collapse

tony_reilly said:
I posted this in another thread -
I followed up with this:
Click to expand...
Click to collapse
Thanks for that. I dont really use any of the sense features myself so i've now disabled sense syncing completely and will see how it goes (once its fully charged again!). will keep this thread updated with any news from my end in any case.

I did notice the sync logo was up quite a bit... interesting!
Mine did it randomly... couldn't clear it so just went for factory reset which appears to have fixed it!
May turn of HTCSense however if it is likely to be causing problems...

I got the same Battery problem after new OTA and Im going crazy! What can I do? My battery lasts only about 4 hours now!!!!!!
Should I factory reset and wipe everything???

As ive posted in a few other threads i went into stock application manager and force closed everything i could to do with google, htc , friendstream, maps, facebook etc. After that my cpu 100% problem stopped, has never returned and battery life has improved compared to before the update.
Sent from my Desire HD using XDA App

I have disabled now HTCSense.com sincronization. I will see how this works tomorrow for me. I will let you know guys

I had htcsense.com enabled but to be frank I never really used it much...
disabled its syncing (every 3 hours I had set), rebooted, still had "android system" at ~65% and htc sense running at about 15% (tell me, I use launcher pro 99% of the time, is there any way to actually kill the sense ui? I swear its in the background)...
This did nothing, I tried actually removing the account, and even before a reboot the proc. usage dropped down to about 15%, which was apparently being used by the monitor I use (osmonitor). rebooted, let the phone settle, it did a sync, all seems well... So in my case an actual removal of the account was needed.

Try turning USB debugging on/off. I have it off after the last OTA and I have no /INIT problems. Maybe they fixed it...

I had the same problem, with the cpu running constantly at 100%. For me the solution was to remove the HTC Sense account, and then adding it again. After this the cpu usage dropped to normal.

well its been nearly 4 hours unplugged and i'm down to around 80% with around 30m of calls made and a dozen texts. not fantastic, but much better then before.

Did you try USB debugging? previously that has been mentioned as the CPU eater and battery hogger... just a thought..

javier24 said:
I have disabled now HTCSense.com sincronization. I will see how this works tomorrow for me. I will let you know guys
Click to expand...
Click to collapse
Confirmed. I had the same exact problem and removing HTC Sense account did the trick.
I tried adding it again, but the cpu drain started again..... so I'll use it for some time without SenseSync.

reelist said:
well its been nearly 4 hours unplugged and i'm down to around 80% with around 30m of calls made and a dozen texts. not fantastic, but much better then before.
Click to expand...
Click to collapse
well it seems i spoke too soon. i've just woken up to find that the battery died overnight. so sometime in the last 9 hours i've lost 80% battery whilst it has been on standby.
prateekgujral, i currently have usb debugging turned ON due to the /init problem. are you suggesting that i turn it off?

reelist said:
prateekgujral, i currently have usb debugging turned ON due to the /init problem. are you suggesting that i turn it off?
Click to expand...
Click to collapse
It should be on So its good.. What about the sync tthing dicsussed above?

[Q] 4.4.2 Battery Life issues - less than 25% total life compared to previous version

Hello, new to the forums here. I recently updated to 4.4.2 on my LG Optimus G Pro and I went from having a battery that lasted all day, sometimes two days to my phone being dead by the time I get home from work for the day ever since the update.
Two days ago I had 1hr18min of screen time within a 6 hours off the charger and the phone was at 15% battery life left. Today, I had 13 minutes of on screen time and at the end of my 6 hour shift my phone was at 40% and dead a few hours after I got home. I have GPS, bluetooth, NFS all disabled and my brightness set to 30%.
Any help would be greatly appreciated, I'm thinking of doing a factory reset and just not updating to the new version of android when it prompts.
Thanks

silentvelcr0 said:
Hello, new to the forums here. I recently updated to 4.4.2 on my LG Optimus G Pro and I went from having a battery that lasted all day, sometimes two days to my phone being dead by the time I get home from work for the day ever since the update.
Two days ago I had 1hr18min of screen time within a 6 hours off the charger and the phone was at 15% battery life left. Today, I had 13 minutes of on screen time and at the end of my 6 hour shift my phone was at 40% and dead a few hours after I got home. I have GPS, bluetooth, NFS all disabled and my brightness set to 30%.
Any help would be greatly appreciated, I'm thinking of doing a factory reset and just not updating to the new version of android when it prompts.
Thanks
Click to expand...
Click to collapse
Get betterbatterystats and see if you phone deep sleeps. If not then check what the wakelocks are in partial wakelocks. If it's a kernel problem maybe you need to flash a different kernel.

cxyjordan said:
Get betterbatterystats and see if you phone deep sleeps. If not then check what the wakelocks are in partial wakelocks. If it's a kernel problem maybe you need to flash a different kernel.
Click to expand...
Click to collapse
i am running stock phone. it is not rooted or anything

Same exact battery drain problem. Im on stock e980 rom (rooted) with no custom kernel.
Gsam battery monitor app is showing the kernel as keeping my phone wake for the entire time my phone has been unplugged.
The problem seems to come and go though. One day itll be fine, but another day the battery will be sucked dry fast.
Sent from my SM-P600 using Tapatalk

I'm running stock rooted for e980 and have pretty good battery life .... Try clearing Google play services data and rebooting ... Check and see what's draining your battery mol its pretty easy
2SHAYNEZ

I'm also running stock kernel, and have great battery life on kitkat. Just reset your phone to factory defaults
Sent from my LG-F240L

ccelis said:
I'm also running stock kernel, and have great battery life on kitkat. Just reset your phone to factory defaults
Sent from my LG-F240L
Click to expand...
Click to collapse
I've done this twice in the past 3 days....
I'm sick of having to set up my phone over and over again. And this is a new phone too. I just got it Monday under warranty because my old phone broke.
It's getting annoying. I used to get 14-17hrs+ of battery life (casual use, usually ending the day at 30-50% too, so I never even reached 0%) with my old phone on Jelly Bean. Now with Kitkat, I get around 6 hours if I'm lucky! According to Wakelock detector, my phone is awake 85%+ of the day! All it points to is Kernel (Android OS). I see lots of Wlan_wake triggers too, so I suspect wifi, but even with wifi off, the drainage still occurs. And I only have a 2GB data plan shared between 3 people, so it's not like I can just use data all the time either. I actually NEED wifi.

spexwood said:
I've done this twice in the past 3 days....
I'm sick of having to set up my phone over and over again. And this is a new phone too. I just got it Monday under warranty because my old phone broke.
It's getting annoying. I used to get 14-17hrs+ of battery life (casual use, usually ending the day at 30-50% too, so I never even reached 0%) with my old phone on Jelly Bean. Now with Kitkat, I get around 6 hours if I'm lucky! According to Wakelock detector, my phone is awake 85%+ of the day! All it points to is Kernel (Android OS). I see lots of Wlan_wake triggers too, so I suspect wifi, but even with wifi off, the drainage still occurs. And I only have a 2GB data plan shared between 3 people, so it's not like I can just use data all the time either. I actually NEED wifi.
Click to expand...
Click to collapse
do you have an SD card installed? Maybe you can try to remove that and get rid of all other media from your phone storage. Might be a media scanner problem? Or maybe you can try to disable auto sync, and check if Google play services is the culprit.
Sent from my LG-F240L

ccelis said:
do you have an SD card installed? Maybe you can try to remove that and get rid of all other media from your phone storage. Might be a media scanner problem? Or maybe you can try to disable auto sync, and check if Google play services is the culprit.
Sent from my LG-F240L
Click to expand...
Click to collapse
The media scanner usually shows up in the battery stats window though, and it isn't. I've had a corrupted SD card on my tablet once before and it caused media scanner to go berserk, but the Mediascanner entry appeared under Settings>Battery as the highest battery consumer.
In this case of my phone right now, it is Android OS in Settings>Battery. According to Wakelock detector, GSam, and BetterBatteryStats, it's more specifically Kernel.

spexwood said:
The media scanner usually shows up in the battery stats window though, and it isn't. I've had a corrupted SD card on my tablet once before and it caused media scanner to go berserk, but the Mediascanner entry appeared under Settings>Battery as the highest battery consumer.
In this case of my phone right now, it is Android OS in Settings>Battery. According to Wakelock detector, GSam, and BetterBatteryStats, it's more specifically Kernel.
Click to expand...
Click to collapse
Have you tried reflashing your firmware, instead of just doing a factory reset?
I assume you are rooted since you are using BBS and wake lock detector on KK. Why not flash a custom rom?
Sent from my LG-F240L

Battery
silentvelcr0 said:
Hello, new to the forums here. I recently updated to 4.4.2 on my LG Optimus G Pro and I went from having a battery that lasted all day, sometimes two days to my phone being dead by the time I get home from work for the day ever since the update.
Two days ago I had 1hr18min of screen time within a 6 hours off the charger and the phone was at 15% battery life left. Today, I had 13 minutes of on screen time and at the end of my 6 hour shift my phone was at 40% and dead a few hours after I got home. I have GPS, bluetooth, NFS all disabled and my brightness set to 30%.
Any help would be greatly appreciated, I'm thinking of doing a factory reset and just not updating to the new version of android when it prompts.
Thanks
Click to expand...
Click to collapse
Hi i had the same problem as you but i started digging inside the system of the phone i found the problem but you will require root access. If you have root you have to delet a lib file tand it carrier iq wich run in background and drains your battery the file to delete is libiq_client.so do that and you will see an increase in battery life
Hav

ccelis said:
Have you tried reflashing your firmware, instead of just doing a factory reset?
I assume you are rooted since you are using BBS and wake lock detector on KK. Why not flash a custom rom?
Sent from my LG-F240L
Click to expand...
Click to collapse
I did this on Tuesday or Wednesday.
... I messed something up on my phone while trying to install a custom recovery, so I was basically forced to reinstall everything. I'm on stock ATT e980 ROM (on an E980) + root. I reflashed the Jelly Bean tot file and then did the OTA update with no apps installed.
On the phone that got warrantied, I had flashed the E980 kitkat backup (now has a flashable version too), and the battery life seemed to be much better on it for about a week, and then the issues started there too.
I just rebooted the phone into recovery and wiped cache and Dalvik cache. Many people on Kitkat are reporting that this helps, but only for about 2 days then the issue returns. Obviously, I want a permanent solution.
---------- Post added at 05:47 PM ---------- Previous post was at 05:45 PM ----------
xoLEOox said:
Hi i had the same problem as you but i started digging inside the system of the phone i found the problem but you will require root access. If you have root you have to delet a lib file tand it carrier iq wich run in background and drains your battery the file to delete is libiq_client.so do that and you will see an increase in battery life
Hav
Click to expand...
Click to collapse
I just tried this right now. Will see what happens.
Will report back if I see anything noticeable.
How would this this battery though? Like, what does it do? Are there any adverse effects to removing it?
EDIT: BTW, I know you weren't addressing this at me, but I'm still trying it LOL

spexwood said:
I did this on Tuesday or Wednesday.
... I messed something up on my phone while trying to install a custom recovery, so I was basically forced to reinstall everything. I'm on stock ATT e980 ROM (on an E980) + root. I reflashed the Jelly Bean tot file and then did the OTA update with no apps installed.
On the phone that got warrantied, I had flashed the E980 kitkat backup (now has a flashable version too), and the battery life seemed to be much better on it for about a week, and then the issues started there too.
I just rebooted the phone into recovery and wiped cache and Dalvik cache. Many people on Kitkat are reporting that this helps, but only for about 2 days then the issue returns. Obviously, I want a permanent solution.
---------- Post added at 05:47 PM ---------- Previous post was at 05:45 PM ----------
I just tried this right now. Will see what happens.
Will report back if I see anything noticeable.
Click to expand...
Click to collapse
Ok restart when you delete the file this is a permanent solution for me i hope this helps you as it did me

ccelis said:
I assume you are rooted since you are using BBS and wake lock detector on KK. Why not flash a custom rom?
Sent from my LG-F240L
Click to expand...
Click to collapse
I didn't see this part of your message, but I just had to respond lol
Yes, I'm rooted and I absolutely hate custom roms. They take out all the features of the phone that I originally bought the phone for, like Smart Screen, the IR remote (yes, I know it can be ported), and the quick memo button. Plus I used custom ROMs on my old SGS2 and they always caused me tons of problems. Crashes, overheating, random reboots, random SODs, etc etc etc. Plus I hate the AOSP feel. I know it's true Android, but I just don;t like it.
---------- Post added at 11:42 PM ---------- Previous post was at 11:38 PM ----------
xoLEOox said:
Ok restart when you delete the file this is a permanent solution for me i hope this helps you as it did me
Click to expand...
Click to collapse
I'm still getting more than usual battery drain, but it is better now.
I just got a replacement OEM LG battery, so I will try that to see if maybe the battery is defective. When I got my phone replaced under warranty, they didn't have batteries in stock, so they just gave me back my old one and ordered me a knew one. The old phone was overheating a lot too, so maybe the battery is bad.
UPDATE: OK, MUUUUUUUUUCH better battery now!
I put in that new battery and "recalibrated" it by draining it to 0% and charging with the power off. Once it reached 100%, I let it charge an extra hour, unplugged, and started up the phone.
I also installed Qualcomm Snapdragon's Battery Guru. I set it up so that it's mostly managing app syncing, but I also set it up so that it will not rely on location services to turn on/off my wifi. I don't want to leave my location services on all the time. I don't know how it is on Kitkat, but on older Android versions (ICS and GB), leaving GPS on was a huge battery drainer! I still treat location like it was back then.
Anyways, it will take a few days for the app to learn my usage patterns, but it's already helping by making certain apps only sync when I open them, etc. I suspect that all the wlan_wake wakelocks are being caused by auto-sync but I'm reluctant to turn it completely off since i rely on it to sync my work schedule, calendar, etc between my phone and tablet. I just wish there was a system setting to allow auto-sync to run every X hours or something. I really only need the sync to run every 6 hours or so.
It's been about 35mins now with 6mins of screen time and the phone is still at 100%. A few text messages and the installation of Battery Guru too. This is normal and how things used to be. After a while, the phone will most likely go to 99% and then have faster drain, but it shouldn't be so rapid like before. Earlier today, after 30mins, the battery would be at at least 95% or lower by now! After a full day, the battery usage graph would should a 45 degree angle too! It used to be an almost level, very gradual angle instead.
I should also mention that for a while, I was using a Zero Lemon slim battery (3150mAh). I bought it because of all the hype Zero Lemon was getting here on XDA, but I really regret it now. I used it for 2 weeks (1 week on my broken phone and 1 week on my replacement) and the drain wasn't consistent, even after several calibration attempts. It lasted me all day though, but I'd be stuck at maybe 3% for like an hour, then while in deep sleep, the battery would "magically charge" to 6%.
After I swapped back to the OEM battery, I don't think I recalibrated, so I wonder if my phone thought I was still using the Zero Lemon.
I'm planning to return the Zero Lemon.
UPDATE2: It's been a couple hours now and the Android OS is starting to retreat from the #1 slot in the battery consumption list!
Screen is #1 now and Android OS went from 65% usage to 14%! :good: :good:
UPDATE3: :crying: OK, it's broken again. I didn't do anything to the phone, but when the phone hit 50%, I left it alone for 2 hours and the battery drained 30% while it was supposed to be sleeping. Android OS is back up to 80% usage!
Wifi on, Location off, Bluetooth off, auto-sync on. I'm trying auto-sync off today to see if there's any dramatic improvement.
UPDATE4: I might be on to something now. I noticed 2 things: 1st, when the screen is off and the phone is SUPPOSED to be in deep sleep, the back of the phone stays warm to the touch. It wasn't hot, but it was warm enough to be noticeable. 2nd, I had System Tuner installed yesterday but uninstalled it this morning. Despite uninstalling and rebooting, the phone was still draining battery fast (I still lost 25% in 2 hours today!). I noticed that System Tuner had added a script to System/etc/init.d, so I deleted that and rebooted. Now the phone seems to be sleeping (says so in BetterBatteryStats and WakeLockDetector), and the back of the phone is COLD to the touch when doing so. I took a shower today (I take fairly long showers too LOL), and then checked my email, and the battery life didn't decrease at all during that time while it was asleep.
Obviously, I need to test this throughout the day now, but this is definite progress, if not the solution.
Also, on my warrantied phone, when I had the Zero Lemon battery inserted, battery drain was high (battery's fault), so I installed System Tuner then too, trying to tweak the phone. After switching back to the stock battery, the drain remained, but most likely due to System Tuner's script.
Then when I got my replacement phone, I ALSO installed System Tuner and of course, I got battery drain issues! I factory reset, but did not install System Tuner, but the problem still remained. However, it probably remained because the reset doesn't remove system files, so this script was still in the init.d folder.
FINAL: I ended up flashing the stock ROM again (I used Eazy Kat 1.0 this time). My phone began bugging out on me. Random crashes here and there, mobile data randomly disappearing (no LTE/4G/3G at all), and worst of all, people were having difficulty hearing me during calls. Reflashing seems to have worked perfectly this time. *knock on wood*
FYI: The last flashes I did, I used .tot files to flash back to stock Jelly Bean and then updated to Kitkat via OTA.

xoLEOox said:
Hi i had the same problem as you but i started digging inside the system of the phone i found the problem but you will require root access. If you have root you have to delet a lib file tand it carrier iq wich run in background and drains your battery the file to delete is libiq_client.so do that and you will see an increase in battery life
Hav
Click to expand...
Click to collapse
I stumbled across this post and tried that fix. I'll check back in later to see what it does.

Kernel (Android OS) battery usage very high

Hey Zenfoners
Happy with my phone but I have a problem with battery usage.
I'm using GSam Battery Monitor and Kernel (Android OS) under App Usage seems very high.
For example today the phone has used 26% in 5h 45m with 30 minutes of screen on time. Screen usage shows 18%
But App Usage is 56% and 48% of this is Kernel (Android OS). CPU usage for Kernel (Android OS) is 4h 10m. And the phone has only been on for 5h45m.
I can't check what is keeping wake lock because I don't have root.
On idle using wifi it is using 2-3% per hour when my LG G3 and Note 3 use about 1.5% per hour on idle.
Anyone else have this problem?

I'm glad I found your post. Highly frustrating with my zenfone 2. Massive battery drain with google apps and Android OS. Yesterday or it was Google Backup Transport, today it's some other google stuff. Would love to know how to properly debug this stuff. I tried disabling most of pre-loaded Asus stuff but who knows what's causing battery drain. I can lose over 1% of battery PER MINUTE.

I just did a factory reset and added these apps:
GSAM Battery
Dolphin browser
LINE Messenger
Touchpad keyboard
Google Inbox
Google Translate
Google Keep
Android OS is still being crazy. Amazing that you can buy a brand new phone and it fails almost out of the box, and it seems the OS developer is at fault. No wonder people are switching to iPhone!
Sent from my ASUS_Z008D using XDA Free mobile app

So I installed a system update adorable through the menu which seems to be helping now. Android OS still seems the biggest battery drain but at least the drain isn't outrageous like it was before. There's a discussion about the fix on reddit about it:
m.reddit.com/r/zenfone2/comments/334hkc/battery_issue_android_os_eats_a_lot_of_juice_when/
Sent from my ASUS_Z008D using XDA Free mobile app

Were you rooted before? For the 1st "Battery Used by App" screenshot?
I've not been rooted so on the latest s/w update. Haven't seen behaviour like this on any of my recent devices. Terrible battery usage when idle, and all my Google settings (location, backup, etc) are the same.

Well i almost get at 100% of battery status of battery life almost 3 days.
Firmware : 2.15.40.13 Pre-rooted system.img by Shakalaca
Xposed module for ZF2 installed + Greenify (Donate) app
Basically i geenifed all system apps {some you cant greenify) including power saver app which is build in + normall apps.
I will add SS when i will charge battery to 100%.
I cant understand why people gettin device discharging after 6 hours etc.
Follow my guide : http://forum.xda-developers.com/zenfone2/help/how-to-upgrade-cn-version-to-ww-t3101556 to update to the latest WW OTA
Xposed : Here

I'm on the latest WW firmware but I shouldn't have to root, greenify etc. Didn't do it on my Note 3/HTC One/LG G3. What's the point in having 4GB of RAM if you're flushing it every few minutes. I do have location settings and history on, as they were with previous phones, but everything else is very conservative. Zenfone 2 is the only one that shows crazy Android OS usage with same apps and same sync/backup/location etc settings. All on Android 5.0 too!

kazprotos said:
I'm on the latest WW firmware but I shouldn't have to root, greenify etc. Didn't do it on my Note 3/HTC One/LG G3. What's the point in having 4GB of RAM if you're flushing it every few minutes. I do have location settings and history on, as they were with previous phones, but everything else is very conservative. Zenfone 2 is the only one that shows crazy Android OS usage with same apps and same sync/backup/location etc settings. All on Android 5.0 too!
Click to expand...
Click to collapse
How you can compare different phones according to the battery life if they were made in different technology and they using Snapdragons not Intel components.
Thats wrong mate
If you moaning about battery life in ZF2 you should compare it with diff zenfones ( ZF5,ZF6 etc.) or other Intel based devices

Note 3 was an Exynos.
So Intel = still bad then

I haven't rooted or anything. Battery life is now acceptable but Android OS is still near the top, but nothing crazy like it was before the system update. Does your build number match mine? I have the TW phone, so I assume TW software.
Battery graph shows almost continuous usage with screen almost always on.
Sent from my ASUS_Z008D using XDA Free mobile app

psommerfeld said:
I haven't rooted or anything. Battery life is now acceptable but Android OS is still near the top, but nothing crazy like it was before the system update. Does your build number match mine? I have the TW phone, so I assume TW software.
Battery graph shows almost continuous usage with screen almost always on.
Sent from my ASUS_Z008D using XDA Free mobile app
Click to expand...
Click to collapse
Same build number except for ASUS_Z00A (1.8 ghz 4gb RAM) model.

Well ROOT + XPOSED + GREENIFY = 8 Days show battery )
From 23:00 at previous day i left phone with turned on WiFi . Overnight for 9h it drained 4% of the battery so chart is correct.

I fix my battery drain in this way:
Install all OTA updates
Factory Reset.
Reinstall All.
Battery drain seems to be only if you install an OTA without Factory Reset and with all apps already installed.
It take several hours to reinstall all ... but it works !
No more battery drain here !

I done a wipe cache instead of factory reset. You reckon it's the same thing or would I get better results v so th reset? Currently getting 5-6 hours sot with 2.3ghz 4g2g ram. Thanks

aferende said:
I fix my battery drain in this way:
Install all OTA updates
Factory Reset.
Reinstall All.
...
No more battery drain here !
Click to expand...
Click to collapse
I hope you're right!
I did factory reset, install OTA update, and reinstall all. Had one good day. Today, I've lost 6% in about 30 minutes. Even more amusing, the biggest consumer is Wi-Fi ... Which isn't even turned on! Crazy stuff.
I think this'll be the 4th time re-installing stuff now. Good times!
Sent from my ASUS_Z008D using XDA Free mobile app
Sent from my ASUS_Z008D using XDA Free mobile app

I think that dont help, i do that 2 time with out change battery drain. I saw also that deepsleep is very low. Most of the time it rum at 500mhz and need sometimes more then an hour to go to deepsleep.

vivix said:
Well ROOT + XPOSED + GREENIFY = 8 Days show battery )
From 23:00 at previous day i left phone with turned on WiFi . Overnight for 9h it drained 4% of the battery so chart is correct.
Click to expand...
Click to collapse
Well mine last about 15 hours then down. With same setting

Hey there all. If you're still having high android os usage it could be due to calendar storage constantly waking up your phone, check out my post in another thread -> http://forum.xda-developers.com/showpost.php?p=62730039&postcount=21

it is still lolippop 5.0???

[Q] Why Battery Draining Fast?

I have owned this phone for about 3 days, but I have some battery issues.
I attached 3 pictures, and on the first picture, you can see there appears to be no wakelocks, but on the 2nd picture, the Android OS used the vast majority of my battery life, and the 3rd picture, Android System has a lot of "Wake Up Device" (i don't know what the number means is it minutes?)..
I have uninstalled/disabled most of the apps I don't need, and have the brightness set to low, and on airplane mode with all sync off, and zenmotion turned off, and this still happens. I lost about 11% battery overnight with this problem. It seems like when I am using the device, the battery drops a percent every minute even when I am just scrolling through the Settings.
I only used about 1 hour screentime on this phone and the rest on idle.
I already installed both system updates.
Does anyone know why this happens? I know there is a memory leak problem, but I saw on another thread other people don't have that bad of a drain anymore...

VietnamTom said:
I have owned this phone for about 3 days, but I have some battery issues.
I attached 3 pictures, and on the first picture, you can see there appears to be no wakelocks, but on the 2nd picture, the Android OS used the vast majority of my battery life, and the 3rd picture, Android System has a lot of "Wake Up Device" (i don't know what the number means is it minutes?)..
I have uninstalled/disabled most of the apps I don't need, and have the brightness set to low, and on airplane mode with all sync off, and zenmotion turned off, and this still happens. I lost about 11% battery overnight with this problem. It seems like when I am using the device, the battery drops a percent every minute even when I am just scrolling through the Settings.
I only used about 1 hour screentime on this phone and the rest on idle.
I already installed both system updates.
Does anyone know why this happens? I know there is a memory leak problem, but I saw on another thread other people don't have that bad of a drain anymore...
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=3122883

For battery draining assistance see ZenUI app called ASUS Support: Apps/ASUS Support/Assistance/Battery/Battery drains fast/follow detailed troubleshooting steps. If battery still draining, recommend updating to latest firmware version and then performing a factory data reset. Please ensure to back up all important data as this will erase all data.
Sincerely
ASUS_USA

Mine seemed fine for a week and then I got this today. Pretty much done with it. Can't even get it to factory reset.

Asus_USA said:
For battery draining assistance see ZenUI app called ASUS Support: Apps/ASUS Support/Assistance/Battery/Battery drains fast/follow detailed troubleshooting steps. If battery still draining, recommend updating to latest firmware version and then performing a factory data reset. Please ensure to back up all important data as this will erase all data.
Sincerely
ASUS_USA
Click to expand...
Click to collapse
Keep it simple, use a dumb phone?
Posted using my phone.

Umm do I have good battery?
Sent from my ASUS_Z008D using XDA Free mobile app

Asus_USA said:
For battery draining assistance see ZenUI app called ASUS Support: Apps/ASUS Support/Assistance/Battery/Battery drains fast/follow detailed troubleshooting steps. If battery still draining, recommend updating to latest firmware version and then performing a factory data reset. Please ensure to back up all important data as this will erase all data.
Sincerely
ASUS_USA
Click to expand...
Click to collapse
Create update to resolve the problem .
And respected customers. We do what you suggest.
Enough!!!!!!!!! The Problem is lollipop and asus software.
Find solutions, I don't tell @€&@'@#

Its most likely anddriod memory leak which is fized on 5.1

I have zenfone 2 and at the 1st week the battery drained very fast but then after I Updated all the aps of Zen Ui i noticed improvements to my battety life. go to settings and go to zen ui instnt update and update all the apps. now im using my zenfone 2 whole day surfing from 9am to 7pm and i still have 30% battery hope it works for you too. try it

hello guys i am getting screen on time of mere 2 hours without any significant use on my ZF 2.... i have stock rom. no root nothing.... can anybody help me

Battery drain issue still not fixed with updates???

Disable PC Link and Party Link default apps, worked for me. They're default apps using cpu all the time like they're SO Android... Disable all default apps that you don't use too

I've got here two brand new models, which differ only for touch and battery version (Z2C3 01040005 1525 and ... 1526)
The 1526 doesn't show any drain. The 1525 does, as of its very first boot. I tried keeping same settings of course.
I'd like to point out that when connected and charging it shows big steps like going from 63 to 72% and it also reaches 100% in less than 60 mins.
When disconnected the discharge path exhibits about 1:15min of operation.
May I suspect the battery is defective?
PS: after a factory reset from recovery seems have fixed the problem for now at least...

Asus Zen phone 2 laser battery drain ?
I made an account with this website and took the time to write this, so I can let users who own this phone know one of the
biggest battery drain features I've found......DISABLE HOMESCREEN APP MOVEMENT SENSOR, in app icon settings.
When you tilt your phone app icon adjust to the tilt, yes looks cool until you realize how much battery you could save by leaving then static and not constantly running a fDucking tilt sensor.

hello，my zenfone ze551ml might be going to upgrade to mm 6.0， please tell me is it marshmallow stock rom camera better than 5.0？ is it 6.0 have setting sd card become internal storage？ is it 6.0 have mass big storage not just mtp when connected to pc ？
Sent from my S660 using XDA Premium 4 mobile app

[Q] Phone is getting hot after installing MM KDZ, opinion?

Hi guys,
I have updated my phone via LG flashtool, i did a full wipe, and installed a totally stock Marshmallow.
I have used Fulmics ROM based on Lolli.
I feel like the phone's battery doesn't last longer, maybe even worse but maybe it should need more time with that ROM.
I watched a 10 min youtube video and the phone got really hot, unlike on 5.0.
Is that normal, should I wait (second or third time i charhed since the update), or should i look for another kernel maybe?
I rooted and have twrp, should i remove some apps? Already killed Mcafee.
Despite that the phone is fast.
Thank you!

i think its mm issue. every mm rom that i tried always has that bug. no matter what its( custom rom or stock mm). i am using miui 7 for now. waiting for that issue solved first.
---------- Post added at 07:56 AM ---------- Previous post was at 07:52 AM ----------
and btw few days ago i flashed stock mm from autoprime. flashed with twrp and i think battery life is better than lollipop. i can get 6h sot easily. but theres overheat issue. idk if thats bug or our hardware created for that. jajaja

6 hours sound so great. I have 2 hours and 45 minutes and 32% left which is about 4 hours sot, but i use wifi only.
i also noticed that even if i close the apps via close all, settings says f.e. facebook is still running.
i will wait, maybe it just needs some time. i read a hungarian forum, everybody loves MM, but i feel bad about the heating problem.
Maybe LG changed throttling settings and this is the simple reason. Maybe it is ok with the hardware but i also read that a lot of people have battery issues (i have abrand new (couple weeks), original battery now).
Idle battery drain seems to be significant, on Fulmics it was close to zero.

double

reginickneo said:
6 hours sound so great. I have 2 hours and 45 minutes and 32% left which is about 4 hours sot, but i use wifi only.
i also noticed that even if i close the apps via close all, settings says f.e. facebook is still running.
i will wait, maybe it just needs some time. i read a hungarian forum, everybody loves MM, but i feel bad about the heating problem.
Maybe LG changed throttling settings and this is the simple reason. Maybe it is ok with the hardware but i also read that a lot of people have battery issues (i have abrand new (couple weeks), original battery now).
Idle battery drain seems to be significant, on Fulmics it was close to zero.
Click to expand...
Click to collapse
i have zero battery drain on miui. and no overheat at all. do u ever use greenify sir? it can kill the background proccess that u dont use anymore. and its ok when open it again. dont need to freeze like link2sd and other.

fiki13 said:
i have zero battery drain on miui. and no overheat at all. do u ever use greenify sir? it can kill the background proccess that u dont use anymore. and its ok when open it again. dont need to freeze like link2sd and other.
Click to expand...
Click to collapse
Yes I use it.... I just want my phone to do what I say, not what it thinks. If i close the app I want it to be closed. Hope that it will get better.

here is my phone temp while browsing