Develop Bugs

[Q] N5100 Battery Life

Was skeptical about the N5100 battery life since it only have 4600mAH battery.
Now that I have bought it, it seems my worries are confirmed.
I'm running stock rom, only rooted it without other modification.
Installed and have greenify running. Not using any sim card, only using it on WiFi.
Playing a video using MX Player, drained up about 20% of battery for a 45min video. That's rather heavy imo.
Normal browsing and reading forums eats up about 4% per 6min of use.
Is this normal? Or is it my battery has significantly degraded? Cuz I bought this 2nd hand 8 months old.
Btw the above test were with Power Saving mode(CPU and Screen) and screen brightness was at 25%~30%. Currently on 4.2.2.
And does using the S Pen eats up significantly more battery?
Thanks in advance for the feedback.

hahnliang said:
Was skeptical about the N5100 battery life since it only have 4600mAH battery.
Now that I have bought it, it seems my worries are confirmed.
I'm running stock rom, only rooted it without other modification.
Installed and have greenify running. Not using any sim card, only using it on WiFi.
Playing a video using MX Player, drained up about 20% of battery for a 45min video. That's rather heavy imo.
Normal browsing and reading forums eats up about 4% per 6min of use.
Is this normal? Or is it my battery has significantly degraded? Cuz I bought this 2nd hand 8 months old.
Btw the above test were with Power Saving mode(CPU and Screen) and screen brightness was at 25%~30%. Currently on 4.2.2.
And does using the S Pen eats up significantly more battery?
Thanks in advance for the feedback.
Click to expand...
Click to collapse
Do a search on battery and charging by me, in the Q&A threads. I won't repeat myself here, but I go into how to correct drain issues. Many developers will push their apps for calibration. The real trick is discovering what is doing the drain. I have seen for myself how one app can do a lot of damage with media. Normally I get 12% per hour on battery usage while Miracasting Netflix to my tv, and about 10% on normal usage with WIFI always on. I have MXplayer and a bunch of apps as well running so I am not going to get the same power savings as with a cleaned up stock ROM without any apps, what would the point of having a tablet if that is the case???? I guess peeps like to show off when it comes to numbers. I like to show off when it comes to usability and function without all the apps get in the way.

my battery stats
I'm running CivZ-FLEX-BEAM-REV3.6.2 ROM.
Installed and have greenify running. Not using any sim card, only using it on WiFi, even off the WiFi before I off the screen.
Even use underclock to 1.2Ghz cuz only used for normal browsing, nothing intense that require more power.
Here's my battery stats:
Is this normal? Or is it my battery has significantly degraded? Cuz I bought this 2nd hand 8 months old, now 9 or 10 months already.
Now considering should I replace the battery or just get a powerbank to help.
Thanks in advance for the feedback.

hahnliang said:
I'm running CivZ-FLEX-BEAM-REV3.6.2 ROM.
Installed and have greenify running. Not using any sim card, only using it on WiFi, even off the WiFi before I off the screen.
Even use underclock to 1.2Ghz cuz only used for normal browsing, nothing intense that require more power.
Here's my battery stats:
Is this normal? Or is it my battery has significantly degraded? Cuz I bought this 2nd hand 8 months old, now 9 or 10 months already.
Now considering should I replace the battery or just get a powerbank to help.
Thanks in advance for the feedback.
Click to expand...
Click to collapse
From what the graphs show... it looks like the battery could be going bad, as there has some that say Samsung is aware of bad batteries in some units. You could contact them, but you will need to un-root if sending to Samsung for repair.
Since you are rooted, I suggest installing xposed framework and install Wanam DVFS Disabler for Xposed. It is a standalone utility from the complete Wanam xposed app. Once installed make sure both xposed is functional, and the app in xposed is enabled. These apps act as a separate process from the OS. So installing them requires user interaction for activation and updating, along with a reboot most of the time.
Once they are running... it is best to turn off the tablet for 1 minute and then plug in the USB charger and wait til it is showing 100%. Then turn on the tablet. You can unplug the USB power cable and wait 1 minute, then plug it in. Take note if the charge takes less than a minute to get to 100%. If it takes a minute or more... you will need a stop watch, as it should take about 15 to 20 seconds to go to fully charged, unless you have music or media running at the time. If it does charge quick, you can then disconnect and do another days worth of use and check your stats. Hopefully disabling DVFS will cure your issue if it is not battery related.
As for unrooting, make sure you do a clean uninstall, and have any apps that require root uninstalled. If running triangle away uninstall that as well. You may have to check within the apps settings to make sure you uninstall properly, as to uninstall from play store or the system may not properly remove the app.

Updated Battery Stats
this is my updated battery stats, now I'm suspecting it maybe due to calibration problem?
My screen on time is now 2 hrs 45 mins, and for the last 45 mins it has been running on that last 1% of battery(but with screen dimmed, as brightness is automatically dimmed and can't be adjusted when below 5%).
Even until now the device haven't auto shut down due to run out of battery yet even though been running 45mins SOT for that 1%.
Calibration problem? I've tried calibrating using calibration apps, which I charged to 100% then press calibrate, but didn't help.

hahnliang said:
this is my updated battery stats, now I'm suspecting it maybe due to calibration problem?
My screen on time is now 2 hrs 45 mins, and for the last 45 mins it has been running on that last 1% of battery(but with screen dimmed, as brightness is automatically dimmed and can't be adjusted when below 5%).
Even until now the device haven't auto shut down due to run out of battery yet even though been running 45mins SOT for that 1%.
Calibration problem? I've tried calibrating using calibration apps, which I charged to 100% then press calibrate, but didn't help.
Click to expand...
Click to collapse
Sudden drop of more than 3% at any level after doing the DVFS disable and properly charging can be one of two things.
A bad battery, or bad charging cable. Yep, I have had two bad Samsung cables, one did exactly what is happening with you, and the other did a melt down at the USB connection on my tablet. If you have a good cable from a Blackberry or a Sony/Ericson device, you can try that. I have moved over to Sony Xperia cables, as they are pretty well built and longer.
If another cable does not solve your issues, I suggest unrooting and cleaning up rooted apps before having Samsung service your tablet. It very well could be a bad battery.

thanks for the reply, I think I'll just resort to sending it back to Samsung to fix it.
Now I have made a nandroid backup already, then I flashed stock firmware, so my device is now unrooted and on stock firmware, however my flashcount is still there, and now I can't run triangle away cuz my device is unrooted already.
If I were to root it, it'll flash custom recovery again then it won't be on stock firmware anymore.

hahnliang said:
thanks for the reply, I think I'll just resort to sending it back to Samsung to fix it.
Now I have made a nandroid backup already, then I flashed stock firmware, so my device is now unrooted and on stock firmware, however my flashcount is still there, and now I can't run triangle away cuz my device is unrooted already.
If I were to root it, it'll flash custom recovery again then it won't be on stock firmware anymore.
Click to expand...
Click to collapse
Your unroot sequence was done out of order.
Set USB debug
Root stock rom with saferoot.zip
Install triangle away
perform clear of counters
Verify after clearing in about device that custom is not set.
If so make sure triangle away is set to clear and perform clearing.
Remove triangle away
Remove SuperSU through the settings, clear for reinstall.
To make sure everything is proper... do a factory reset.
Once those steps are done, your tablet should be stock and able to perform OTA or Kies updates, without any issues with counter and root.

[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.
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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???

new battery and having the same problems before the old one died.

Hi all,
I got a new battery a week ago, because my phone didn't turn on or charged anymore.
But my battery keeps draining. I lose around 25% in idle at night time. And around 3% every 5 minutes when I use it.
I used gsam for a few days now to see iff there are any applications that are causing the drain. So far I can't discover any.
Also when I'm using my phone the side of the power button gets hotter then the rest of my phone. While the battery and cpu both are under 40 C.
I do have android 10 and 2.1 ui from devbase rom with soldier 6.0 clean installed, tried other roms aswell, so maybe I should get back to android pie?
I also started using ex kernel with the standerd underclock option you can choose while flashing this helps a bit.
Hopefully somebody can help me out.

Some gsam data

I have the same. I used different roms and kernels, all the same. I turn on airplane mode for the night. it helps a bit.

bolek932 said:
I have the same. I used different roms and kernels, all the same. I turn on airplane mode for the night. it helps a bit.
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Click to collapse
Thank you, this reassures me that It's just a coincidence that my battery died, and that the behavior of my phone at the moment doesn't mean it would happen again.

packman89 said:
Some gsam data
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Click to collapse
I do notice, that gsam says that that I am using wifi all the time. And it shows that battery usage is high when this happens.
The only thing is that I never use wifi anywhere..
I don't know if this is something to go on or just normal behavior?

Question High battery consumption on idle

My phone is usually on idle and not used due to my job. But Im noticing extreme battery consumption even when Im not using it. Never had this issue with other phones. Last night I checked the batter before sleep and it was at 67% at 1 AM, today its 62% at 7 AM so there must be an issue because it should only drain 1 or 2 percents during idle.
In battery settings the top app using the battery is phone idle.
Im on xiaomi.eu 12.5.6 rom but I had the same issue with stop 12.5.3 so I dont think it's because of rom.
I had great battery life with my last phone which was poco x3 nfc with the same settings and apps so it's not because of any third party apps either.
Anyone else experiencing the same problem?

With AOSP ROMs, I even had worst experience when I installed one of the custom kernels because they somehow didn't put the phone into deep doze correctly. But yeah, the idle consumption is quite high - even on stock Kernel.
Currently I use HavocOS and its stock Kernel - and SuperFreeze (from F-Droid store) to freeze most apps right after screen lock. Idle consumption has dropped to 0.1-0.2%/h as a result. I made a thread some days ago regarding this topic... see here.

Thanks. Im gonna try your guide but it's not the most noob friendly guide I've seen
Just Kidding, thanks for your time.

Oh, my thread wasn't meant to be a guide... I did put it in "Question" like you did, but a mod seems to have moved the thread to "General"
My "solution" is only temporary - at least I hope there are still developers out there who value a low idle drain more than fast charging and benchmark numbers...

esszett said:
... and SuperFreeze (from F-Droid store) to freeze ...
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Sorry for the OT, could it be that the app. is called SuperFreezZ?
Have you noticed any good battery life gains with this app.?

Yeah, sorry, SuperFreezZ: https://f-droid.org/en/packages/superfreeze.tool.android/
For several months I had the problem that from a certain moment, the consumption at idle suddenly increased enormously (from 0.1-0.2 % to 2-3% per hour). Even if I manually forced all apps to stop, In Android's battery info "Android OS" and "Android System" showed up with double-digit percentages. I could only get the phone back to its previous behavior with a restart.
To date, however, it is not clear to me what triggered this. I suspected GCam for a while, then Osmand+, but I couldn't ever confirm that because the problem didn't start whenever I used those programs, just sometimes.
I never found a real solution for this, but SuperFreezZ did.

The best thing I've used for years now is Greenify, its hasn't received an update in more than a year but still works perfectly

Do we need root to use these apps? I remember using greenify before onmy older devices with root but havent used it for a while. Gonna see how much it drops tonight and then try to tweek some things and recheck it tomorrow night.
Weird thing is, I was getting an awesome battery life out of poco x3 nfc, could it be because of the cpu idle? Because that's the only thing that seems different between the 2 devices. (X3 even had an lcd which is supposedly less battery friendly)

Kianush said:
Do we need root to use these apps?
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Yes.
Kianush said:
I was getting an awesome battery life out of poco x3 nfc
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Unfortunately, hardly anyone notices this because most users do exactly what the F3 was designed for: Playing games.
I came from a 2.5 years old F1 and it lasts easily longer than the F3 although it has a smaller battery and a LCD screen... The F3 behaves anything but fully developed. These latest high-end SOCs (870, 888) are really powerful, but unfortunately not equally power-efficient. That's the reason why I throttled the CPU and undervolted the GPU. This dropped the active drain from ~8 %/h to <5 %/h on my device and my usecases.

esszett said:
Yes.
Unfortunately, hardly anyone notices this because most users do exactly what the F3 was designed for: Playing games.
I came from a 2.5 years old F1 and it lasts easily longer than the F3 although it has a smaller battery and a LCD screen... The F3 behaves anything but fully developed. These latest high-end SOCs (870, 888) are really powerful, but unfortunately not equally power-efficient. That's the reason why I throttled the CPU and undervolted the GPU. This dropped the active drain from ~8 %/h to <5 %/h on my device and my usecases.
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Click to collapse
Yeah. I used to underclock the cpu on my old phones but I dont know about undervolting. wouldnt it cause issues? I just used 3c toolbox app to set a lower max clock and a lower min clock for cpu cores. I read somewhere that rooting xiaomi.eu rom breaks some functions so I havent rooted it yet. do you have any info on that?

Kianush said:
Yeah. I used to underclock the cpu on my old phones but I dont know about undervolting. wouldnt it cause issues?
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Click to collapse
As long you don't push too hard with undervolting, it works quite well. See attached image (it's not mine, but I have oriented to it).
Kianush said:
I just used 3c toolbox app to set a lower max clock and a lower min clock for cpu cores.
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I've never heard of it... This seems to be a powerful tool! Nice!
Kianush said:
I read somewhere that rooting xiaomi.eu rom breaks some functions so I havent rooted it yet. do you have any info on that?
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Click to collapse
Konabess doesn't need root, afaik. Extract the boot.img of your ROM and copy it into a folder of your device. Then use Konabess to modify the settings and repack it into a modified boot.img. This file you can flash with TWRP. No guarantee that it works for xiaomi.eu, but it works for AOSP (at least it worked for me).

Kianush said:
My phone is usually on idle and not used due to my job. But Im noticing extreme battery consumption even when Im not using it. Never had this issue with other phones. Last night I checked the batter before sleep and it was at 67% at 1 AM, today its 62% at 7 AM so there must be an issue because it should only drain 1 or 2 percents during idle.
In battery settings the top app using the battery is phone idle.
Im on xiaomi.eu 12.5.6 rom but I had the same issue with stop 12.5.3 so I dont think it's because of rom.
I had great battery life with my last phone which was poco x3 nfc with the same settings and apps so it's not because of any third party apps either.
Anyone else experiencing the same problem?
Click to expand...
Click to collapse
I'm ont he same rom as you and let me explain my experience.
My battery has been insanely good. Even with heavy usage over a period of 4 hours, which included 1.5hrs of SoT and pandora playing though bluetooth all 4 of those hours with dolby and viper enabled. Was at 100 and dropped down to 94%. So It may be an app or setting that you have installed causing problems and draining battery. The only battery saver addition I have installed is Universal GMS doze. Idle time for me It takes me about 5 hours to drop down 1%.

Zaiaku said:
I'm ont he same rom as you and let me explain my experience.
My battery has been insanely good. Even with heavy usage over a period of 4 hours, which included 1.5hrs of SoT and pandora playing though bluetooth all 4 of those hours with dolby and viper enabled. Was at 100 and dropped down to 94%. So It may be an app or setting that you have installed causing problems and draining battery. The only battery saver addition I have installed is Universal GMS doze. Idle time for me It takes me about 5 hours to drop down 1%.
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Click to collapse
Well if there is an app that is causing this, it should be shown in the battery settings. But the only thing that is eating up my battery is phone idle. So it might be a service or something. Im out of options right now unless I find a way to root this rom without facing new problems.... Worst thing with miui is that you cant do things like rooting as easy as other roms.
Btw, would you please tell me the settings and xiaomi.eu version you are on? Im on 12.5.6 stable and using 120hz + vivid color scheme and most of my apps are on blcok background activity except my messaging app. And Im losing battery on phone idle not the screen on time!
Ss below.(dropped from 92 to 82 woh only 30mins screen on time doing nothing but checking xda!) And 7hrs of those 9hrs I was asleep and the phone was on airplane mode + gps off!

You could try BBS or similar apps. Maybe it's an app which prevents the phone to go to deep doze (wakelocks).
BTW: MIUI sucks

Kianush said:
Well if there is an app that is causing this, it should be shown in the battery settings. But the only thing that is eating up my battery is phone idle. So it might be a service or something. Im out of options right now unless I find a way to root this rom without facing new problems.... Worst thing with miui is that you cant do things like rooting as easy as other roms.
Btw, would you please tell me the settings and xiaomi.eu version you are on? Im on 12.5.6 stable and using 120hz + vivid color scheme and most of my apps are on blcok background activity except my messaging app. And Im losing battery on phone idle not the screen on time!
Ss below.(dropped from 92 to 82 woh only 30mins screen on time doing nothing but checking xda!) And 7hrs of those 9hrs I was asleep and the phone was on airplane mode + gps off!
Click to expand...
Click to collapse
I switch my screen refresh rate down to 60hz but since your phone is idle it really shouldn't come into play unless you have always on display or turn screen on for notifications.
Rooting this phone is amazingly easy. Takes like 5mins if that. My Mi 9 lite took longer to root then this phone.
As far as an app draining battery, It more then likely not it since you saying phone idle, which in the past people have said if you phone has problems with signal this can drain a battery. For me this has been a major issue. With AT&T service I would loose double the amount of battery over night (I play pandora through out the night when sleeping). Also if you have apps that are heavy internet usage (unsure where you at but things like facebook and messenger drain tons and yet don't register battery drain on most analytics. And since you using a xiaomi.eu rom I know alot of those bg services are disabled or removed.

Zaiaku said:
I switch my screen refresh rate down to 60hz but since your phone is idle it really shouldn't come into play unless you have always on display or turn screen on for notifications.
Rooting this phone is amazingly easy. Takes like 5mins if that. My Mi 9 lite took longer to root then this phone.
As far as an app draining battery, It more then likely not it since you saying phone idle, which in the past people have said if you phone has problems with signal this can drain a battery. For me this has been a major issue. With AT&T service I would loose double the amount of battery over night (I play pandora through out the night when sleeping). Also if you have apps that are heavy internet usage (unsure where you at but things like facebook and messenger drain tons and yet don't register battery drain on most analytics. And since you using a xiaomi.eu rom I know alot of those bg services are disabled or removed.
Click to expand...
Click to collapse
Yeah thanks for the info. I used to root my devices easily by flashing magisk but it seems they have changed the method, though I found the method on a post on xiaomi.eu website and rooted my device.
Tried to lower cpu frequencies a little and use superfreez app. It seems better now but not as good as what you say...
Gonna play with settings a little bit more and wait for another xiaomi.eu stable update to see if it's a bug on this version.

Kianush said:
Yeah thanks for the info. I used to root my devices easily by flashing magisk but it seems they have changed the method, though I found the method on a post on xiaomi.eu website and rooted my device.
Tried to lower cpu frequencies a little and use superfreez app. It seems better now but not as good as what you say...
Gonna play with settings a little bit more and wait for another xiaomi.eu stable update to see if it's a bug on this version.
Click to expand...
Click to collapse
Someone made a auto script for it, but you will have to reflash rom and factory reset data. You really shouldn't have to change cpu feqs. Also uploading a screenshot of my last 2 hours. I know its only 21min of SoT but also 2 hours off charger but playing pandora as well as some other app usage but still at 100%

esszett said:
As long you don't push too hard with undervolting, it works quite well. See attached image (it's not mine, but I have oriented to it).
I've never heard of it... This seems to be a powerful tool! Nice!
Konabess doesn't need root, afaik. Extract the boot.img of your ROM and copy it into a folder of your device. Then use Konabess to modify the settings and repack it into a modified boot.img. This file you can flash with TWRP. No guarantee that it works for xiaomi.eu, but it works for AOSP (at least it worked for me).
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Click to collapse
Konabess without root won't start, any idea?
thanks

tojdvd said:
Konabess without root won't start, any idea?
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Click to collapse
Ah, ok... I thought you could load a separate boot.img - my fault, sorry!
Then you've to have root for Konabess...

Just to show what's possible with HavocOS 4.9 and 12.5.6 EEA firmware, see atached screenshot... It's with the stock kernel of HavocOS, but with the modifications I did mention here.
Running for almost 2 days
~8 hrs SOT (2 hrs of which with 120 Hz and 2 hrs of which with 100 % brightness, otherwise 60 Hz and brightness between 25 and 50 %) and still 50 % battery left.