Xperia Z2 :: Android OS Battery Drain
Feb 27, 2015
So when I opened up my battery usage I noticed that Android OS was at 70% usage (69% now in screenshots). I check my battery usage several times throughout the day and Android OS was not consuming 70%. It seemed to spike to 70% consumption, which points to an error in battery usage charts.
The steeper drops at the beginning and toward the end can be attributed to the poor reception areas I was in and my heavier screen on time during those periods. The flat portion in the middle is when I went to bed and left my phone for about 8 hours. Notice there are no huge wake locks during my time off battery.
This is my current screen on time....
I'm guessing this is an error with the battery usage calculator but I'm not completely sure. How to know if this is an error with the battery usage or is Android OS really consuming 70% and how I should fix it?
Links to screenshots:
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Oct 20, 2015
Having bad battery drain on the Galaxy S6, always seems to do it when on 3G and when travelling. It seems fine on WiFi. Here are some screen shots,
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Dec 27, 2014
Strange that there aren't much complaints about that, but after I got the even buggier 5.0.1 update, the WiFi's battery drain is unstoppable. My usage and settings are exactly how I left them before the update several days ago. WiFi uses about 60% while the phone sleeping. No abnormal wakelocks details detected
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Sep 2, 2015
My phone is one of the "not so good battery" variety, so it needs to be charged mid day every day.
Today I couldn't go to work due to hurricane and thunderstorms near me. so I sat back and played some N64 Zelda for 2 hours and what do you know, I'm at 60% with 2 hours of SoT... probably the best SoT I've ever gotten (I'm guessing I'm gonna have 5 hours SoT today? estimate?) but when playing something like dead trigger with the same exact Bluetooth controller the battery drains much faster. (I would say the same battery wasted in half the time)
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Apr 12, 2015
Having issue where android system is consuming 35+% of the battery? Looking at the stats it seems like one of the bundled services is keeping the radio on for 14/18hrs its been on.
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Nov 17, 2014
the GSAM app on my HTC ONE M8 says that my app usage is higher than my screen and three of the main battery drainers are: Kernel (Android OS), Android System and System (Mediaserver).
I use my phone properly, charge it very well and have had 4 android phones. None were like this. I have the latest firmware for the M8 (4.4.4). My screen on time is not that good now, around 2-3 hours but when I first got the phone (3 months ago) it was 4-5 hours.
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Jul 9, 2015
I usually watch Netflix in bed then go to sleep. In the last week, I occasionally wake up to find my batter drained (down 80+%) overnight. According to GSAM, the culprit is Android Core Apps. Not sure what that is. I thought maybe Netflix was still downloading, but that's not Android Core Apps.
This is Nexus 6 on 5.1.1 using mobile radio only (no wifi).
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Jun 18, 2012
I have (as probably quite a few of you) upgraded my Xoom from HC to ICS (3.2.6->4.0.4). After the upgrade, I saw a massive battery drain and began wondering what was going on. I noticed the "Android OS" process was keeping the tablet awake through the middle of the night and I assumed it was the culprit.
Given that the Android OS process is part of the system kernel, I figured something went wrong in the upgrade. Flashed back to 3.2.3 Honeycomb from the motorola website, and did OTA upgrades all the way back to 4.0.4.
I left apps off, completely stock, locked, and back to the way someone would get it brand new. I did not install anything; and went to sleep for the night.
I woke up to about a 10% battery drain, the Android OS had used 80% of that 10%. Before ICS I was able to go 5+ days with moderate use on my tablet (Juicedefender and various other helpers), now I can barely make 1-2 days.
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May 31, 2012
I don't understand what is happening with my 4 month old XPERIA RAY..I've changed the battery with the new one, switch off my phone and full charged it and when i've starded the phone the state of the battery was 96%. After 5-6 hours with data activated, no GPS, no WiFi, no Bluetooth the phones turn off (0%) Can't believe that's normal.When i've bought the XPERIA RAY, i've 2 days before my battery goes empty... And now the phone is heater than before.Is XPERIA RAY a big s**t like my first ps3?
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Aug 22, 2012
I'm having a serious battery drain problem with my Neo. It seems to drain very quickly within 8 hours sometimes less, and when it gets to about 30% it will suddenly say "no sim card", the battery icon flashes red and then all power goes completely and have to recharge. When the 'phone is switched on and idle, it gets VERY warm, never mind about being used.
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Jul 6, 2011
So after I got the new update, the battery continues to drain even after I plug it in to charge. It's VERY annoying. This never once happened before the update.
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Nov 7, 2014
There is a lot of RAM consuming and battery usage by the app com.sonymobile.intelligent.iengine. I have attached a screenshots for your reference. How to avoid this and is there any problems to face or performance loses if i stop this app???
Finally for which function this app (com.sonymobile.intelligent.iengine) belongs to and what are the functions it supports?
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Nov 28, 2011
I bought z2 few days ago, everything seems right until yesterday, in power management it says battery could live about 2 days and smth with 100% but yesterday my phone was on 40% and power management says 4 hours more life of battery, i charged it and now with 100% its 7 hours ...
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Apr 4, 2015
Using z3,why my battery before this if fully charging it will stated can stay until 2days buy now fully charging but It appears only for 14hours only for the battery
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Mar 7, 2015
I've recently bought Xperia z2 but right now i'm having severe battery drain issue. At the first day it showed me average time of one & half day but right now its draining much faster & i'm only getting battery life of 13-14 hrs, only using wifi & music app. stamina mode is active but still no progress. How to reduce battery drain? i've seen some post in this blog where people said they are getting battery life of around 4 days.
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Jun 1, 2015
I generally use chrome for browsing and battery drain is inconsistent. Usually it is very fast and i have to charge twice in a day, but occasionally it's great and lasts much longer. I cannot figure out what's different on the days it lasts longer.
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May 6, 2012
I have a problem with my Xperia Ray after the ICS update, now the phone drains a huge amount of battery when its just in standby mode. create a downgrade tool that lets you downgrade to GB again.
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May 6, 2012
The battery of my xperia mini pro got depleted during an update attempt, and since then it won't turn on, charge, nor be recognized by my computer through the USB cable connection. Hence the PC companion won't recognize it as well. It doesn't vibrate or turn any lights on, just gets a little bit hotter when connected for a long period of time.
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Jun 8, 2012
I've updated my Neo to ICS 4.04 recently and since then apart from LED notiffications not working the stock Email app (not gmail) sync is not working. It was working earlier in GB. I configured my gmail using the email app and set the refresh interval to 1 hour but it never syncs or refreshes. It worked perfectly in GB. SONY fix this issue as I'm missing some important mails.
2. The media server is draining a lot of battery without me listening to any music. I really don't know why that's happening. I did repair my phone after ICS update but still this issue. I don't listen to songs on my phone as I have a music player but media server consumption is around 10 % and that pretty high.
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Jan 15, 2016
Is it normal to drain 18% in 1 and a half hour with constantly use (radio, messenger, and 1-2 more apps) lowest brightness .. Im always thinking its draining too fast.
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Nov 7, 2014
I had been using my Z2 for 1 and a half year. everything goes very fine until dew days ago. It suddenly goes into blackscreen while pressing power button/ power + vol. up does not work. I need to dock/charge it for like few secs to make it "alive". I tried reset phone to factory settings, and it still the same.
Tried repair through Sony PC Companion, but it takes FOREVER to download and i just give up this (I have totally no issue at all with my connection. I was browsing youtube, playing games, scrolling facebook etc. without any internet latency problems so definitely will not be my network problem). Then today, it restarted again, so i tried docking it (it was abt 90% remaining). once i dock it, it displays with very low battery (its like less than 10%).....
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Oct 13, 2015
I received my phone week ago i notice that every thing works fine but battery drain so fast. Even with the stamina mode on and brightness is very low and i also set the auto brightness. I also updated my phone to new version but it still same I also clear the stamina mode app settings and when i checked that which app using more battery there no app there. I install same apps which is install in my z3 but z3 give atleast 1 day or like 20hrs battery the why i use it normally the way I use it .
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Jun 19, 2010
I face one problem today is that for cleaning my X10 i shutdown my phone and i remove the battery, on that time the battery is upto 85% charge .after a couple of second i reinsert the battery and reboot my phone. while rebooting it shows that please connect the charger the battery is low and it automatically shutdown. this is first time i am seeing likeproblem or ?. But all the phone if we remove the battery and reinsert ther is a little % will be discharged.
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Jun 10, 2012
I upgraded my SK17i to the latest ICS 4.1.B.0.587 and there is extream battery drain while the phone is on stand by. I tried repairing the phone and reflashing with flashtool, still the same problem persists. see the below screenshots. The phone has been idle (No use at all) and the time without signal is 0%. what we need above all advanced features is EXCELENT BATTERY LIFE! what you have done to make the battery drain faster?
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May 8, 2012
I'm thinking of unlocking the bootloader of Neo V to flash JB but I'm not sure and I have some questions.
1.Will a new rom help on perfomance battery and ram mangement?
2.Will a JB rom drain too much battery in a small amount of time?
3.Can I go back to the original GB rom?
4.Will the GB Camera app play on a new Rom and can I find it as an .apk?
5.Is there a stable JB 4.1 Rom or even better 4.2 for Neo V?
6.Can I unroot my phone on the new rom?
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Apr 21, 2012
My mobile battery started to drain within seconds after recharge . The mobile also restart often. Had given it for service in Bangalore. Workorder no.SE312AT210964. The service and after sales customer support is so pathetic. They kept mobile for 3 weeks and returned it saying battery is not in stock. How to escalate this ?
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Mar 23, 2015
I have purchased xperia z2 last october in India. The phone was all fine until last few weeks. From past two weeks the phone heats up for no reason. Even using whatsapp for half an hour is heating the phone to such an extent that i cant touch it. I cant use the phone for anything now. Keeping it on for more than 20 mins is heating the phone without doing anything. Is this any problem from the recent app updates? Or is somthing wrong with my phone? And maximum battery drain is always from screen.
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Jul 29, 2015
Over the last 24 hours i've notice my Xperia Z2's battery is draining very quickly, even when asleep. Even when it is plugged in charging, i keep getting messages saying the phone is unable to charge as it is using too much power. And previously i could charge the phone overnight fully, now it doesn't get close to 40%
In addition to this I've noticed it is kicking out a lot of heat at the top of the phone, and also i can no longer connect to the internet via wifi.
Everything else seems ok, and i have managed to back up my data to an sd card. I haven't added any new apps recently.
I've had the phone for less than a year and as far as i know it hasn't had any heavy drops or anything.
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Mar 24, 2015
I'm with a 5.0.2 D6603. The issue I have is that the following Kernel wakelocks does not allow the phone to deep sleep.
msm_serial_hs_dma
BTLowPower
I've just performed a sw repair via pc companion, and several factory reset. I'm running the Z3 with no apps.
It happens both with an LG G Watch R (5.0.2) and a regular BT Plantronics (voice only) headset. Using the same BT devices with a Nexus 4, Nexus 10 and an LG G2 does not have the same effect. As soon as there is no usage the phone goes to sleep immediately.
If we take the second device, I do expect a Kernel wakelock while speaking or streaming music. The phone is active any way while performing this task. What is strange is that even if there is no activity the wakelocks avoid deep sleep.
What is strange is that if I move away from the headset (and the BT icon goes the "non connected" status), the wakelocks are always there. The effect is that my phone (both on 4.4.4 and 5.0.2) almost never ever sleeps, and sometimes get warm. It is evident that the battery life affected a lot. If I switch BT off, everything goes back to normal.
I did a further test, in the below sequence:
- BT ON + connected to a Plantronics headset => wakelock + device always on
- BT ON + disconnected to a Plantronics headset => wakelock + device always on
- BT OFF + disconnected to a Plantronics headset => no wakelock + device sleep
- BT ON + disconnected to a Plantronics headset => wakelock + device always on
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May 22, 2015
My z3 (NTTDOCOMO)is brand new and working fine but after couple of uses i realize after i charge at night and unplug , in the morning battery is around 78%-80% only things battery gone is for idle and screen(**bleep**). Also yes i already have all saving modes on Since day one and i don't keep data,wifi,nfc or anything on if i don't use them.
Also im missing the download manager app the app that show what you downloaded . Its uninstallable also its running inside Since on apps it isn't disabled. My friends have z3s and they all have it on apps except me ... why?
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Nov 2, 2015
LG G4 recently, specifically the battery life. Yesterday, it somehow discharged from 100% to 20% three times in one day, on normal usage. I just don't know what is wrong with the phone. Android (and GSam) claim that the highest user of battery is Android System and Android OS.
What I have done:
-Used LG Access Lock to deny keep awake and location permissions
----worked for a few days and then battery life fell back off
-Full reset of phone
----battery life is actually worse after the reset
-Battery saving location settings
Possible suspects:
-Pebble watch --- constant on bluetooth maybe?
-Facebook/Messenger/Snapchat/etc --- wanting my location constantly?
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