Database Develop

Poor Battery Life - .246, Ext Battery, Better Batt. Stats... info inside

I've searched to understand what's keeping my phone awake and killing my battery and I can't figure it out.
Some background on me:
I'm very familiar with using SS, HoB, flashing ROM's, wiping. FDR, etc, for the Bionic.
Have Better Battery Stats to try to watch what's eating battery.
was on .905, did FDR, used HoB to get to .246 leak after it was confirmed same as the OTA....
Now on .246, rooted with HoB.
Not using TiBu to restore any apps or data.
Have installed better battery stats to understand what's keeping my phone awake.
Whether on the stock rom, stock rom de-bloated, or Eclipse...
Unless I use smart actions to turn off cellular data + background sync (while on a stock rom) there's one common thing keeping my phone awake (kernel wakelock):
bpwake
If I turn off cellular data + background sync then I don't get gtalk notifications/messages, and I've even had some texts not come through when I had those 2 features off (which I thought was strange, not even mms, just regular text messages) and the text never came through even after they turned back on.
I understand that if you don't use your phone a lot, AndroidOS is going to take up a bit of the power drain. No worries there.
But the fact that I'm on an extended battery and I'm halfway through that in less than 5hrs with MINIMAL phone usage- that just doesn't seem right... I could understand that with the standard battery..
My concern is that the "keep awake" time seems rather high in relation to screen time...
I can't find anything on bpwake other than a post about the droid razr, and there wasn't ever a response to that post.
Anyway, I've attached some screenshots of my kernel wakelocks from BBS, as well as battery readouts from the settings and screen on times plus the AndroidOS keep awake time.
I know it doesn't look like the phone is waking up very often, and I've seen much worse in the past, but it seems as though there's still something that's keeping it awake.
I'll try another FDR, and reload .246 through HoB and see if it helps any but I figured I'd reach out here for any help.
Thanks
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dan46n2 said:
I've searched to understand what's keeping my phone awake and killing my battery and I can't figure it out.
Some background on me:
I'm very familiar with using SS, HoB, flashing ROM's, wiping. FDR, etc, for the Bionic.
Have Better Battery Stats to try to watch what's eating battery.
was on .905, did FDR, used HoB to get to .246 leak after it was confirmed same as the OTA....
Now on .246, rooted with HoB.
Not using TiBu to restore any apps or data.
Have installed better battery stats to understand what's keeping my phone awake.
Whether on the stock rom, stock rom de-bloated, or Eclipse...
Unless I use smart actions to turn off cellular data + background sync (while on a stock rom) there's one common thing keeping my phone awake (kernel wakelock):
bpwake
If I turn off cellular data + background sync then I don't get gtalk notifications/messages, and I've even had some texts not come through when I had those 2 features off (which I thought was strange, not even mms, just regular text messages) and the text never came through even after they turned back on.
I understand that if you don't use your phone a lot, AndroidOS is going to take up a bit of the power drain. No worries there.
But the fact that I'm on an extended battery and I'm halfway through that in less than 5hrs with MINIMAL phone usage- that just doesn't seem right... I could understand that with the standard battery..
My concern is that the "keep awake" time seems rather high in relation to screen time...
I can't find anything on bpwake other than a post about the droid razr, and there wasn't ever a response to that post.
Anyway, I've attached some screenshots of my kernel wakelocks from BBS, as well as battery readouts from the settings and screen on times plus the AndroidOS keep awake time.
I know it doesn't look like the phone is waking up very often, and I've seen much worse in the past, but it seems as though there's still something that's keeping it awake.
I'll try another FDR, and reload .246 through HoB and see if it helps any but I figured I'd reach out here for any help.
Thanks
Click to expand...
Click to collapse
Your first problem is the 30 mins you went without data. The phone when it does not have a signal will continuously attempt to regain the signal. That is what is triggering the wake ups. If your going to be in dead zones put it in airplane mode.
Sent from my BNTV250A using xda app-developers app

Obsidian_soul said:
Your first problem is the 30 mins you went without data. The phone when it does not have a signal will continuously attempt to regain the signal. That is what is triggering the wake ups. If your going to be in dead zones put it in airplane mode.
Sent from my BNTV250A using xda app-developers app
Click to expand...
Click to collapse
Interesting, is that true even if you turn mobile data off? It's not clear if the OP turned it off or was just in a dead zone.
I ask because I'm chasing the exact same problem on Stock-Rooted .246, on a stock battery. I don't charge at night, rather I charge in my office during the day. So my phone sits off the charger during the night so I get a good idea of battery drain in standby. Since loading .246 OTA, with data/sync/4g on sitting overnight I was seeing a 12% drop in a 7 hour overnight period, with GSam Battery Monitor showing most of the drain going to Kernel activity. Not bad I guess, but seems way high to me. In comparison my previous phone (Dinc2) would only drop about 4% overnight with data/sync on.
So in an attempt to improve it and get her to sleep, I turned off Mobile Data and Background sync, leaving just the cell radio on. It's my only phone so I'd like to at least be able to receive an emergency phone call in the middle of the night, god forbid. In the same 7 hour period, with mobile data/sync off, I saw an 18% drop, GSam saying 49% of that went to Kernel activity. So, no mobile data/sync, yet the Kernal is still that active, with more drain??? What in the world is the kernel doing, it should be in a deep sleep. Any insight?

Not sure what the no service was about, as I've got service where the phone is parked most of the day (at my desk) but I notice it is still saying I have no data connection or no signal as of now (2h23m off charger, 35min w/ no data connection, 28m w/ no or unknown signal).
Anyway, I've gotten the kernel wakelock (bpwake) down significantly by turning 4g off and leaving it with 3g only.
Battery life is rather exceptional now with only putting the phone in 4g if it's necessary...
Eventually I'll try Eclipse again and see how that works with 4g off and using 3g exclusively (when I'm not on wifi, of course).

Erievon said:
Interesting, is that true even if you turn mobile data off? It's not clear if the OP turned it off or was just in a dead zone.
So in an attempt to improve it and get her to sleep, I turned off Mobile Data and Background sync, leaving just the cell radio on. It's my only phone so I'd like to at least be able to receive an emergency phone call in the middle of the night, god forbid. In the same 7 hour period, with mobile data/sync off, I saw an 18% drop, GSam saying 49% of that went to Kernal activity. So, no mobile data/sync, yet the Kernal is still that active, with more drain??? What in the world is the kernal doing, it should be in a deep sleep. Any insight?
Click to expand...
Click to collapse
Just to eliminate this variable, I should also state I show radio signal was good, 4-5 bars all night long.
---------- Post added at 10:46 AM ---------- Previous post was at 10:18 AM ----------
dan46n2 said:
Anyway, I've gotten the kernel wakelock (bpwake) down significantly by turning 4g off and leaving it with 3g only.
Battery life is rather exceptional now with only putting the phone in 4g if it's necessary...
Click to expand...
Click to collapse
You say you're on .246, forgive the Noob question, but how are you switching it to 3g? I appear to no longer have that option in .246 OTA.

dan46n2 said:
Anyway, I've gotten the kernel wakelock (bpwake) down significantly by turning 4g off and leaving it with 3g only.
Battery life is rather exceptional now with only putting the phone in 4g if it's necessary...
Eventually I'll try Eclipse again and see how that works with 4g off and using 3g exclusively (when I'm not on wifi, of course).
Click to expand...
Click to collapse
I'll have to second the question above - how are you able to turn 4G off Dan? I'm on stock, non rooted .246 (planning on root is what brought me to this part of the forum) and the only trick I know to manipulate the network type is *#*#4636#*#* - last night I switched to LTE only and all of maybe 10% overnight. Of course, I can't make any calls (no calls over lte iirc?)
thanks for looking into this! I'm going to have to monitor battery stats a lot more with this phone...

Digging through more GSam stats, I'm seeing 300+ wakelocks from the mediaserver. I'm sure this is probably not helping matters. Anyone know what causes this and how to stop it? I'm certainly not listening to music or viewing pictures in my sleep.

I'm using the lte switch app for the thunderbolt to turn off 4g. Available from the play store.
Sent from my DROID BIONIC using xda premium

I started using BBS as well, my BP Wake is in check, though I'd still like to know what that is.
However, A big draw I'm seeing now is very similar to the OP's screen shots that he didn't mention. Anyone know what OMAP_USBHS_Wakelock is? I googled it, but Only references I see are just a few others just asking what it is with no resolution.

This should help.
First, I found this: http://forum.xda-developers.com/showthread.php?t=1886166
Which mentions wakelocks and battery drain. Same as yours and the OPs.
Next, I decided to search *just* wakelock in Google: https://www.google.com/search?q=wak...zilla:en-US:unofficial&client=firefox-nightly
Which led me to the following two links here at XDA:
http://developer.android.com/reference/android/os/PowerManager.WakeLock.html
An explanation about PowerManager.wakelock methods used in Android, and
http://forum.xda-developers.com/showthread.php?t=1827676
"A Comprehensive (but not by any means definitive) Guide to Wakelocks"
That should answer most questions.
)This next part is me surmising - I may be way off base, but this is what I gleaned from reading through all of these things quickly)
In our case, it seems like the kernel is now built in with some sort of USBHS driver for our OMAP chipset, which means that it now allows programs (apps) to call that PowerManager.wakelock method and keep the phone (or specific parts, such as the chipset, CPU, etc. - which means, of course, more battery drain.

The problem is the weak mobile network signal and the power it takes to maintain it. On the other hand, the weak mobile network signal is apparently a problem in ICS only and GB does not have this problem to the same extent.
In some ROMs the battery drainer shows up as "Android OS" but in others it shows up as "Phone radio" or whatever it is that signifies that.
I do have the GSM/WCDMA hack enabled though and it seems to only happen with that.

So did anyone find a solution? I'm in the same boat. My extended battery is not lasting in ICS like it did in GB. I cannot even go 8 hrs with minimal use off charger.

Zetachi - the only thing that I've been able to do in order to increase battery life is to turn off 4G unless I need it. With using strictly 3G (and wifi when I'm at home) I'm getting much better battery life.

dan46n2 said:
Zetachi - the only thing that I've been able to do in order to increase battery life is to turn off 4G unless I need it. With using strictly 3G (and wifi when I'm at home) I'm getting much better battery life.
Click to expand...
Click to collapse
LOL kind of defeats the purpose of having a 4G phone and service

Eh, you still have the 4G without the drain. While not the most optimal situation, at least its easily remedied with just a few clicks.
Certainly an inconvenience, but those of us with the Droid Bionic have got to be used to that feeling by now!

I use WiFi at home and 4G everywhere else. I get great battery life.
Something I learned, though, is that the Gmail app will sync with the servers every 5 minutes if you create and save (not send) a draft. That will eat up a lot of battery over the course of a night (or day).
Something to think about.
Sent from my ASUS Transformer Infinity TF700 running Android JB (rooted) via Tapatalk

T3t3 battery wipe
https://www.box.com/shared/0fq4sdhhxwwgex0e7uyh
Get a full charge and run this in safestrap.
I let mine reboot and charge again cause safestrap Burns battery. Then run it till its dead.

teshgnex said:
I'll have to second the question above - how are you able to turn 4G off Dan? I'm on stock, non rooted .246 (planning on root is what brought me to this part of the forum) and the only trick I know to manipulate the network type is *#*#4636#*#* - last night I switched to LTE only and all of maybe 10% overnight. Of course, I can't make any calls (no calls over lte iirc?)
thanks for looking into this! I'm going to have to monitor battery stats a lot more with this phone...
Click to expand...
Click to collapse
Be careful with this method. I know you posted this a while back but it may be helpful for others to know that the phone can lose data all-together using this method. It has happened to myself and other users as well.

[Q] Weird "battery drain" when lightly using the phone

Hello !
I just bought my P880 two days ago and everything is great except one thing: battery drain. It is not occouring in background when phone is in Deep sleep, it doesn't lose charge while it's sleeping, but when I just unlock it/start using it, it just starts draining.
I have rooted it, and unrooted using SuperSU. The thing is I haven't experienced that kind of drain yesterday, it was working fine except drain caused by bad signal (badly inserted SIM).
Usage by Android System is at 50% over 5 hours, Screen is at 9%. Awake graphs are the same as Screen on graphs- no wakelocks.
I have these apps installed:
Prey Anti Theft
Skype (not running)
Adobe Reader
SoundHound
Disco Light
QR Droid
Sygic (not running)
X-plore
SwiftKey 3 keyboard
WiFi, GPS, Data, everything turned off except mobile signal
Running Internation version with Android 4.0.3, Kernel 2.6.39.4-00001-g0f9182c
Mobile network type is EDGE:2 with mobile signal -70dBm
I'm first time android user and this is my first problem so I tried to include as much info as possible.
Thanks in advance

I see 2 mayor issues, first is the android deft app, it may be running and trying to sync but bcz the data is off it will try to connect foreva.
Also, edge is (in other words) ROAMING and this forces the antenna to use more power to get signal from another provider, it get worst if you have a phone with sim card.
Sent from my LG-P880 using Tapatalk 2

Gildegan said:
I see 2 mayor issues, first is the android deft app, it may be running and trying to sync but bcz the data is off it will try to connect foreva.
Also, edge is (in other words) ROAMING and this forces the antenna to use more power to get signal from another provider, it get worst if you have a phone with sim card.
Sent from my LG-P880 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for pointing that out, but I have disabled every sync and I have set phone to 2G mode only, the reason is that UMTS signal was low and was draining battery even more.
I am only losing sharge when just doing random things on phone, even if that means only adding/removing widgets/apps on main screen with WiFi off.

Then you must try the Deodexed version of v10f, removing the bloatware with the script in the same thread.
The issue may be some lg apps that are running in the background so doing this will have 6 hours in standby time with 100% still, like me (if I turn all radios off ).

I have just woken up, while sleeping (9h) phone was awake for about 50%, no wakelocks but there were 30 alarms from Android/Google maps ans 29 alarms from com.google.android.gsf
Hope this helps.
I may try custom ROMs if nothing else works.
While typing this message I have lost 7%.

Similar state here as the OP. Got the phone two days ago.
All is good, it rooted OK, Directory Bind works fine, phone runs like hell (about 10 times faster than my old Galaxy S) BUT it drains battery like a genuine power guzzler.
Ok I get that according to the performance you get, it comes with an accordingly high power draw, so I don't ***** about it, I just want to know if this is normal. I mean I played 2 hours and 15 minutes of Sprinkle and the battery died, starting from a full charge. Screen was set at 50%.
GPS is off, Bluetooth is off, no 3G mobile network and screen is at 50% brightness as I said. There's an NFC icon on the notification bar next to the battery icon, which I am not sure if it should be there.
Here are a couple of shots from the battery section of the phone and from Battery monitor widget if these help.
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Please note that as the OP said, the phone consumes nearly nothing when idling. Firmware is 10f.
PS I am not trying to hijack the OP's thread. I just noticed the same behavior and I'd like some help on the same matter, as well as to contribute in whatever way I can. If the OP is offended somehow, I will gladly start a new thread.

@psolord No, not offended at all. I'm glad you posted actually.
My phone has encountered 20 more Alarms, wake ups since I left it standing:
com.google.android.apps.maps Wakeups: 50
com.google.android.gsf Wakeups: 45
You can see pictures below, the drop on the second picture happened when I was writing me previous post from P880.
- I am also rooted again (after factory restore)
- I have reenabled 3G networks but the signal is only at about 50%.
Any additional info please ?

Ok buddy, so we can keep discussing it here together.
For the matter at hand, I see the same behavior, when I unlock the screen, it's like I have opened a whole in the battery.
It dropped from 85% to 65% just from downloading a new map (500MB, 20min download on a slow wifi) from Sygic downloader. I mean this can't be right, right?
I also checked cpu spy and it reports the system 75% at deep idle, 15% at 51Mhz and the rest are 0% to 1% up to 1500Mhz. So if the cpu has so little operation, what on earth is draining the battery?
I wonder if we could be looking at a bad battery batch.
Is there an app that reports exactly what activity consumes power and how much?

Indeed, the hole in the battery.
I even restored to factory from recovery mode since I screwed up the root, so it was just stock, but guess what, nothing has changed :crying:
I really hope this can get fixed, else I'll get a replacement.
I hope someone from this forum with more experience can help :/

I think I am onto something.
Can you please check how is the phone doing if you disable everything under location and services?

psolord said:
I think I am onto something.
Can you please check how is the phone doing if you disable everything under location and services?
Click to expand...
Click to collapse
I am going to try this, I am also talking to LG Support right now. WIll let you know when I get more information.

I disabled everything, and I didn't see pretty much any improvement. LG Support suggested me to return the phone.
Pretty much draining the battery atm so I can charge it back to 100% and use something like Battery Calibration. Maybe it can change something.

Yeah indeed I was onto nothing. Nothing changed for me either.
Playing 30mins of a 720P resulted my battery dropping from 62% to 50%. I also used the gps for the first time with Sygic (Jesus even the GPS is lightning fast) and the battery went from 50% to 30% for a 20 minute ride. It seems that my phone cannot give me more than 2 hours of use. That's just silly.
BTW do you or anybody, know of an app that can show battery usage per app?

psolord said:
Yeah indeed I was onto nothing. Nothing changed for me either.
Playing 30mins of a 720P resulted my battery dropping from 62% to 50%. I also used the gps for the first time with Sygic (Jesus even the GPS is lightning fast) and the battery went from 50% to 30% for a 20 minute ride. It seems that my phone cannot give me more than 2 hours of use. That's just silly.
BTW do you or anybody, know of an app that can show battery usage per app?
Click to expand...
Click to collapse
Stock application ?
Also you can use Better Battery Stats to see if there are any wakelocks or anything is waking up the phone etc.

What is happening right now is rather strange, I disabled screen turning off (trying to drain battery to 1%/2%) looking at stock battery app, it seems to be stuck at 21% and it's not changing.

The stock application does not do so much analysis, but the batterystats you used above seems more like it.
I am getting panicked and I miss some stuff haha. Ok lets cool.
It makes me sad that we don't get any input from the community. Something like "yeah this is normal, live with it" or "your phone is faulty, take it back to the shop for a replacement" or something.

Agreed, ANY, ANY kind of input would be appreciated, but I guess we are getting none.
I am going to fully charge it today, do some stuff and report back tommorow. Also anyone, please do post any suggestion you may have.

shiinkotheone said:
What is happening right now is rather strange, I disabled screen turning off (trying to drain battery to 1%/2%) looking at stock battery app, it seems to be stuck at 21% and it's not changing.
Click to expand...
Click to collapse
Maybe this has to do something with the built in power saver. Maybe it kicks in when the battery drops to the 20s and stops whatever is draining it.
I am thinking trying some battery saver to see if it does the same thing but from the beginning of the full charge.

psolord said:
Maybe this has to do something with the built in power saver. Maybe it kicks in when the battery drops to the 20s and stops whatever is draining it.
I am thinking trying some battery saver to see if it does the same thing but from the beginning of the full charge.
Click to expand...
Click to collapse
Actually I have disabled it when it asked me if it should turn on. So I guess nothing to do with that.

I am going to backup now, fully unroot and somehow get it to pure stock. Than I'm probably going to exchange the phone in case battery life doesn't change.

Battery drain, especially at idle

I love pretty much everything about this phone and can't imagine it being much better. One of the reasons I bought it was for the famed battery life. Most blogs and battery tests put it at just over the Z3 and one of the longest lasting phones out there.
However, that hasn't been my experience. I'm an Android veteran and I know how to look for battery drains and what generally causes them. I'm losing a lot of battery at idle and there doesn't seem to be any reason. Nothing shows up in the battery stats. I even tried stamina mode and the results were worse. I lost 20% over 11 hours without even touching the phone. It just sat there and lost 1/5th of the battery. Not quite 2%/hr, I know, but still significant for a phone in stamina mode and not being used.
The only thing that shows up in the battery stats are the usual suspects: Android OS and Android System. I don't have a weak LTE signal or anything.
So, I'm wondering if anyone else is experiencing fairly significant battery drain, especially idle drain. My battery life isn't horrible, but it should be a whole lot better from what I was reading before I purchased the phone.

Apologies for asking obvious questions, but are things like wifi, mobile date, auto-sync, bluetooth and NFC toggled on or off? Are certain apps repeatedly appearing in the Consuming Apps list? I tend to make sure I swipe these away which has helped when I've had similar excessive battery drain, for me these are (for example) Reddit Sync and Google Docs. It is weird that they don't appear to be high in the battery usage % list though...

wingsfortheirsmiles said:
Apologies for asking obvious questions, but are things like wifi, mobile date, auto-sync, bluetooth and NFC toggled on or off? Are certain apps repeatedly appearing in the Consuming Apps list? I tend to make sure I swipe these away which has helped when I've had similar excessive battery drain, for me these are (for example) Reddit Sync and Google Docs. It is weird that they don't appear to be high in the battery usage % list though...
Click to expand...
Click to collapse
Wifi, mobile data, auto sync, and Bluetooth are on all the time, as they are on all of my smartphones. These are not the cause of the drain I'm experiencing. If you leave all of those off all the time, there's no point in having a smartphone. NFC is off.
As stated, there is nothing in the app drain listing to cause alarm. Nothing in the battery stats is telling me I have an issue, which is why I'm frustrated.

Fair point, though I personally toggle them on and off as needed.
How any apps do you have installed over and above those bundled? I'd try uninstalling as much as possible then reinstalling then one by one. Or a less extreme option could be to clear cache in as many apps as you can, reboot and see if the drain stops.

I have everything enabled except Google Now and I lose about 0.2% per hour when idle. Also, I believe all the folks who are reporting battery life of 2 days with 6 hours SoT must be having very low idle drain.
So greyhulk I think your experience is not the norm, but unfortunately don't know how to help. Post up some screenshots of your battery stats.
Sent from my D5803

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greyhulk said:
...
Click to expand...
Click to collapse
When you look a the battery History details, do you see a lot of awake time? Also look at the top 3 or 4 items in Battery usage individually, do they show high amounts of Keep awake time while the phone is idle? A wakelock or poor cell signal are the two main causes of high idle battery drain.

cschmitt said:
When you look a the battery History details, do you see a lot of awake time? Also look at the top 3 or 4 items in Battery usage individually, do they show high amounts of Keep awake time while the phone is idle? A wakelock or poor cell signal are the two main causes of high idle battery drain.
Click to expand...
Click to collapse
It's definitely not poor signal. There is a bit of wake time, but the top 3 items are screen, android OS, and Android system. The wake time on those is not significant, either.

phositadc said:
I have everything enabled except Google Now and I lose about 0.2% per hour when idle. Also, I believe all the folks who are reporting battery life of 2 days with 6 hours SoT must be having very low idle drain.
So greyhulk I think your experience is not the norm, but unfortunately don't know how to help. Post up some screenshots of your battery stats.
Sent from my D5803
Click to expand...
Click to collapse
I'm about the same. I'm getting on average 7 hours on screen daily with everything on, no stamina mode, over 70% brightness. I left my phone unplugged for the first time overnight and it drained a whopping 1%! I've had the phone for over 2 weeks now.
greyhulk said:
Click to expand...
Click to collapse
Sorry to hear about your battery issues, but as mentioned, that's not the norm. Not sure how much help I can be, but I can tell you your Android System and OS percentages are about 2-3 times higher than mine so that seems related to the drain, but tracking down the culprit will be tricky. Have you considered factory resetting?
---------- Post added at 06:21 AM ---------- Previous post was at 06:16 AM ----------
Here's are a couple screenshots for comparison:

when Android OS and/or Android System drain more than cell standby and phone idle you can rest assured that an app or service is draining your battery.
Many things can be disguised as Android System (/OS). It could be google now, location services, syncing of google drive, browser sync or an app running it's own service etc.

Android system and Android OS always drain 2-5% of a battery on all of my devices. However I turn on wi-fi and other stuff only when needed. Plus I have all the google services, google voice and account sync disabled.
But I wasn't happy with the battery life on my Z3c also. Cell standby, phone idle and 1-2 ours of screen time drained the battery almost in 24 ours. Maybe it was one-time occasion (I haven't had much time to test it since the phone is new), but I starting to have a bad feeling

Randy05 said:
Android system and Android OS always drain 2-5% of a battery on all of my devices. However I turn on wi-fi and other stuff only when needed. Plus I have all the google services, google voice and account sync disabled.
But I wasn't happy with the battery life on my Z3c also. Cell standby, phone idle and 1-2 ours of screen time drained the battery almost in 24 ours. Maybe it was one-time occasion (I haven't had much time to test it since the phone is new), but I starting to have a bad feeling
Click to expand...
Click to collapse
That seems highly abnormal, I leave wifi, mobile data, and GPS on at all times, with numerous accounts syncing, yet battery life has been superb for me and many others.
It's been a few hours since I posted that screenshot from my previous comment, but my battery has dropped a mere 2% to 35% and my on screen is now at 5h20m. That's the drainage I've been typically experiencing with daily heavy usage.

greyhulk said:
Click to expand...
Click to collapse
Yep, Android OS and system are about twice what they should be, so that's probably at least part of the cause....
Sent from my D5803

boojay said:
I'm about the same. I'm getting on average 7 hours on screen daily with everything on, no stamina mode, over 70% brightness. I left my phone unplugged for the first time overnight and it drained a whopping 1%! I've had the phone for over 2 weeks now.
Sorry to hear about your battery issues, but as mentioned, that's not the norm. Not sure how much help I can be, but I can tell you your Android System and OS percentages are about 2-3 times higher than mine so that seems related to the drain, but tracking down the culprit will be tricky. Have you considered factory resetting?
---------- Post added at 06:21 AM ---------- Previous post was at 06:16 AM ----------
Here's are a couple screenshots for comparison:
Click to expand...
Click to collapse
I'm not going to factory reset a phone a few days after I took it out of the box and set it up. That's ludicrous. It's set up exactly the same as several of my previous Android devices, none of which had this kind of drain.

greyhulk said:
I'm not going to factory reset a phone a few days after I took it out of the box and set it up. That's ludicrous. It's set up exactly the same as several of my previous Android devices, none of which had this kind of drain.
Click to expand...
Click to collapse
I am seeing the same performance as you. Honestly, at the end of the day I still think the battery life is pretty solid, but not up to the legendary levels others are seeing.
Some guy said he left his phone sitting there overnight and saw a 1% drop? That is insane.
As an aside, how are you showing the Android L on screen buttons?

greyhulk said:
I'm not going to factory reset a phone a few days after I took it out of the box and set it up. That's ludicrous. It's set up exactly the same as several of my previous Android devices, none of which had this kind of drain.
Click to expand...
Click to collapse
Then good luck.

boojay said:
Then good luck.
Click to expand...
Click to collapse
Factory reset is the lazy answer and should only be a last resort, especially when the device had only been active for a few days.
That would be like telling someone to format their computer every time it slows down a little.

greyhulk said:
Factory reset is the lazy answer and should only be a last resort, especially when the device had only been active for a few days.
That would be like telling someone to format their computer every time it slows down a little.
Click to expand...
Click to collapse
A factory reset at the very start is the best time to do it, rather than wait weeks, months from now when it would really be cumbersome, but anyway, you do whatever you think will help. I already tried offering help and you were pretty rude about it so I'm done.

boojay said:
A factory reset at the very start is the best time to do it, rather than wait weeks, months from now when it would really be cumbersome, but anyway, you do whatever you think will help. I already tried offering help and you were pretty rude about it so I'm done.
Click to expand...
Click to collapse
You're kidding, right? Two days out of the box, I have every account set up, all of my music downloaded, all of my apps set up, and my interface tweaked to be the way I want it. It's not any easier now than it will be three months from now. There's also the fact that the device shouldn't run this way out of the box.
Whenever there's a battery thread or a person asking for help on this forum because they have a weird drain, there are two predictable responses that will be offered almost immediately:
Turn everything off - Yes, if you toggle everything off, you'll get good battery life, but then why even have a smartphone? Most modern smartphones are capable of getting decent battery life with all radios on all the time. This is not a solution.
Factory reset - I work in I.T. If I told someone to wipe their computer every time they reported an issue, I'd be out of a job. That should be an absolute last resort. I could see it on a phone that you'd been using for months that suddenly had battery issues and you couldn't figure out what the cause was, but a phone that has been set up less than a week? Please.
These kind of offered solutions aren't helpful, yet they're always the first ones offered. It has been this way since I took it out of the box on day one. So, it either it doesn't like one of the apps I installed from the get go, or it has another issue, or is defective. I mainly posted this thread to see if others were having my experience and a few have confirmed that they are.
So, I'm sorry if you're butt hurt, but I certainly wasn't trying to be rude. I was just disregarding a solution that I predicted someone would offer that is not an option at this point (and really shouldn't be). Anyway, thanks for trying, I guess. Just please be aware that if someone comes here looking for help, they're doing so because they don't WANT to wipe their phone or turn off all of its features. They're looking for an alternative solution. Even newbies know enough to wipe their phone when things aren't working right and it's the last thing they want to hear if they ask for assistance.

greyhulk said:
You're kidding, right? Two days out of the box, I have every account set up, all of my music downloaded, all of my apps set up, and my interface tweaked to be the way I want it. It's not any easier now than it will be three months from now. There's also the fact that the device shouldn't run this way out of the box.
Whenever there's a battery thread or a person asking for help on this forum because they have a weird drain, there are two predictable responses that will be offered almost immediately:
Turn everything off - Yes, if you toggle everything off, you'll get good battery life, but then why even have a smartphone? Most modern smartphones are capable of getting decent battery life with all radios on all the time. This is not a solution.
Factory reset - I work in I.T. If I told someone to wipe their computer every time they reported an issue, I'd be out of a job. That should be an absolute last resort. I could see it on a phone that you'd been using for months that suddenly had battery issues and you couldn't figure out what the cause was, but a phone that has been set up less than a week? Please.
These kind of offered solutions aren't helpful, yet they're always the first ones offered. It has been this way since I took it out of the box on day one. So, it either it doesn't like one of the apps I installed from the get go, or it has another issue, or is defective. I mainly posted this thread to see if others were having my experience and a few have confirmed that they are.
So, I'm sorry if you're butt hurt, but I certainly wasn't trying to be rude. I was just disregarding a solution that I predicted someone would offer that is not an option at this point (and really shouldn't be). Anyway, thanks for trying, I guess. Just please be aware that if someone comes here looking for help, they're doing so because they don't WANT to wipe their phone or turn off all of its features. They're looking for an alternative solution. Even newbies know enough to wipe their phone when things aren't working right and it's the last thing they want to hear if they ask for assistance.
Click to expand...
Click to collapse
Actually without having the phone in hand there is little anyone can do to tell you what is draining the battery, the suggestions given are typical of tech support help if standard things don't work. So you can either take those suggestions or do more research since you have the phone in hand and find the problem. Based on the information given there really is no magic answer to help you.

Weird battery problem with Marshmallow. UPDATE: LTE problem!!!

Hi everyone, hi experts!
I´ve a problem with my Z3 compact. I was having a huge battery consumption from the Google Services so I decided to save everything, repair software using the PC-Xperia Companion and start from scratch. But after that now everything is even worse! My battery drains about 40-50% in one night whithout using it! This time there is no meaningful info from the apps... power consumption in mAh in every app looks small... but the overall battery drains very fast so I can not detect where the drain is coming from. Here some pictures:
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What can I do now? Reinstall again? Send the phone for repair?
Many thanks in advance!
UPDATE: After forcing the phone to use 2G or 3G the battery drain stopped. So it seems that it happens only when LTE is selected (independently wifi is enabled or not). Question now is if this is a problem of the LTE module of my phone or a problem of the net supplier.

parseval43 said:
Hi everyone, hi experts!
This time there is no meaningful info from the apps... power consumption in mAh in every app looks small... but the overall battery drains very fast so I can not detect where the drain is coming from.
Click to expand...
Click to collapse
Chances are Google has a lot to do with it. Do you have poor reception in your house? If the phone is straining to pick up and reply to a poor signal, that can have a big effect on overnight battery. Try switching to 2G overnight.
Other common cuplrits are Facebook and Whatsapp or messaging apps that are constantly pinging data. Try turning the wifi off as you sleep. Also using location based wifi will make a difference as I see your wifi stays on constantly. Have you disabled wifi and bluetooth scanning in location settings? Disable Google location history. I know this sounds daft but go to settings/storage - hold down cached data and delete. This won't effect any apps or services but does make a diffference, I didn't believe it myself until I tried.
Looking at your graph there is something keeping your phone awake at night. Try installing BetterBatteryStats, this will give you more of an idea which service is causing the kernel wakelocks, post your questions about the name of a service causing the problem on the thread as they are very helpful with the answers.
There are lots of reasons why Google Play Services are eating your battery, try a few fixes yourself, check which version of Play Services you have installed , anything older than 9.4.52 needs replacing. Remove your google account, wipe data for Play Services and Download manager, restart to recovery, wipe cache/dalvik. Restart phone, add account again.
There seems to be issues with fitness trackers and bluetooth, if you have bluetooth on all the time, see what happens if you turn it off?
I can recomend Greenify app that can make a difference in putting apps to sleep, it also helps you see which apps are awake and on.
Check in settings/developer options/running services to see what's on and using most memory, you might be surprised at what you find. To enable developer options go to settings/about phone - press on build 8 times, then you get a message that develper options are availabe in the settings menu.
If all else fails, I can recomend Slim 2.5, which is giving me 4 days from one charge and moving to a custom rom isn't as difficult as you might think.

I noticed that after installing new ROMs battery usage is relatively high in the first day or so. Hence it may improve over time (to some extent at least...).

Hi!! Thanks for the help!! I´ll try some of the ideas you suggested. Here some answers anyway:
Chances are Google has a lot to do with it. Do you have poor reception in your house? If the phone is straining to pick up and reply to a poor signal, that can have a big effect on overnight battery. Try switching to 2G overnight.
Click to expand...
Click to collapse
I had no problem in the past... but two weeks ago my company upgraded me from 3G to LTE... perhaps this is the problem. I´ll block LTE this night an
Other common cuplrits are Facebook and Whatsapp or messaging apps that are constantly pinging data. Try turning the wifi off as you sleep.
Click to expand...
Click to collapse
This will be tomorrows trial. One night without WIFI
Also using location based wifi will make a difference as I see your wifi stays on constantly. Have you disabled wifi and bluetooth scanning in location settings? Disable Google location history. I know this sounds daft but go to settings/storage - hold down cached data and delete. This won't effect any apps or services but does make a diffference, I didn't believe it myself until I tried.
Click to expand...
Click to collapse
WIFI is always on because I´m at home. I always had wifi always on without problems. I´ll disable location though... just to be sure this is not the problem.
Looking at your graph there is something keeping your phone awake at night. Try installing BetterBatteryStats, this will give you more of an idea which service is causing the kernel wakelocks, post your questions about the name of a service causing the problem on the thread as they are very helpful with the answers.
Click to expand...
Click to collapse
This will be my third night trial. Something keeps something always on... I just need to find what. If this app helps perhaps I will find the culprit!
There are lots of reasons why Google Play Services are eating your battery, try a few fixes yourself, check which version of Play Services you have installed , anything older than 9.4.52 needs replacing. Remove your google account, wipe data for Play Services and Download manager, restart to recovery, wipe cache/dalvik. Restart phone, add account again.
Click to expand...
Click to collapse
I have 9.4.52 so this should not be the problem. Removing, wiping and redoing everything will be the last thing as I already did yesterday.
There seems to be issues with fitness trackers and bluetooth, if you have bluetooth on all the time, see what happens if you turn it off?
Click to expand...
Click to collapse
BT is always off.
I can recomend Greenify app that can make a difference in putting apps to sleep, it also helps you see which apps are awake and on.
Check in settings/developer options/running services to see what's on and using most memory, you might be surprised at what you find. To enable developer options go to settings/about phone - press on build 8 times, then you get a message that develper options are availabe in the settings menu.
Click to expand...
Click to collapse
Hurm, good point. Do I need to be root for greenify?
If all else fails, I can recomend Slim 2.5, which is giving me 4 days from one charge and moving to a custom rom isn't as difficult as you might think.
Click to expand...
Click to collapse
If all else fails... and for sure in the future. Great link. Thanks!! I dont want to leave the hand of sony´s updates but I´m sure I will need to do it somewhen in the future.
Many thanks!!!!!

Problem found!!! Thanks Didgesteve!!!
After forcing the phone to use 2G or 3G the battery drain stopped. So it seems that it happens only when LTE is selected (independently wifi is enabled or not). Question now is if this is a problem of the LTE module of my phone or a problem of the net supplier. I pay for LTE so I want to use it... but not at the cost of the battery. Is this normal with LTE or do I have a problem?
Thanks again!!

parseval43 said:
Problem found!!! Thanks Didgesteve!!!
After forcing the phone to use 2G or 3G the battery drain stopped. So it seems that it happens only when LTE is selected (independently wifi is enabled or not). Question now is if this is a problem of the LTE module of my phone or a problem of the net supplier. I pay for LTE so I want to use it... but not at the cost of the battery. Is this normal with LTE or do I have a problem?
Thanks again!!
Click to expand...
Click to collapse
The cell location for your 4G connection might be further away or on the edge of connectivity compared to the location of the 2G tower. Everyone assumes that the 2G/3G/4G transmitters are all in the same place, but it's very rarely the case. Most 'old' masts with 2G & 3G don't have room for the 4G transmitter as well and the service provider often needs to install 4G somewhere else..
So if your LTE connection is a long way away, your phone will have to be straining at full power just to keep the connection alaive.

Poor battery performance, what to do?

Hey guys, I'm wondering what can I do to improve my Note 8 battery life. Seems to me that is draining and I do not get the chance to use it too much. Maybe you have an idea how to optimize and track the apps are overusing the battery, so far I was not able to detect which app/component drains my battery. Even Samsung seems that doesn't know since there is no message regarding background processes with heavy usage.
Basically I finished fully charging at 9:15 AM and now 16:15PM time I started to write the post and make the screenshots, it has 16%. What I did all this time with the phone, was:
- a bit of browsing,
- make one NFC payment,
- have the S3 gear connected on bluetooth.
- few twitter messages and viber really small usage. (less than 40 messages overall)
So here are my settings
- WIFI is off and I'm using 3G connection (I stopped LTE thinking that requires more battery.. , correct me if I'm wrong please),
- screen not even on 50% and auto brightness off (using HD+ and a dark theme, everything is so dark!)
- AOD
- no led, no gestures (most of them I turn off for testing purpose)
- Medium battery saver on.
- No phone calls
- few notifications (not more than 20, also the notification is optimized to apps I'm concerned)
Any suggestion how to make it to end of working day .. at least?
I was waiting so long for a new note and now I'm a bit disappointed and I hope that is something I do wrong..
Funny is I just realized that by mistake I put the phone on airplane mode while making the screenshots, still percentage was flying away even like this. I lost 2% making screenshots in a matter of couple of minutes.
Please find the screenshots attached in the link down bellow, were to big to add them to the post.
https://drive.google.com/drive/folders/0B7hYWRFdyQqPOFp3alVYNUxJUW8?usp=sharing
Thanks!

you might have some apps draining battery. I'm used to a rooted phone, so I'd always check with wakelock detector, but I'm not sure what you can do without installing an app as a system app.
Try factory resetting your phone and using it without installing anything for a day and see what the battery life is like. If it's significantly better, install your apps 1 by 1 until you find out which one is causing unnecessary cpu cycles or wakelocks.

Quiksmage said:
you might have some apps draining battery. I'm used to a rooted phone, so I'd always check with wakelock detector, but I'm not sure what you can do without installing an app as a system app.
Try factory resetting your phone and using it without installing anything for a day and see what the battery life is like. If it's significantly better, install your apps 1 by 1 until you find out which one is causing unnecessary cpu cycles or wakelocks.
Click to expand...
Click to collapse
But I wonder, I shouldn't see the heavy usage on the battery info page? Like which app does most of the usage and time spend in the background or CPU?

I had excessive battery drain, about 10-11% an hour with every off . A full factory reset cured the problem.

What's your screen on time usage? 5-6 is probably the normal amount you would get with most phones (This is the most important thing if nothings draining the battery). And yes, it seems you might need a factory reset.

Raklik said:
But I wonder, I shouldn't see the heavy usage on the battery info page? Like which app does most of the usage and time spend in the background or CPU?
Click to expand...
Click to collapse
You won't always see this as it could be a byproduct causing a kernel wakelock.
Either way, something is acting incorrectly. The only way to really figure it out is to start over and try things slowly till you find out what it is.
For instance, on my nvidia shield tablet k-1, I was getting horrendous battery life on every single rom, stock or AOSP/Lineage. I found that I was getting 30% wakelock killing ~20% battery life per day when it should be sub 5%. I found that wifi was causing these kernel wakelocks and setting wifi to be disabled with the screen off unless charging fixed the issue entirely.
Now, that anecdote likely has nothing to do with what you're experiencing, but note that you can usually find out what's wrong from trial and error.

I've had my note 8 for 6 days now, and battery life is excellent, i mean i have wi-fi and 4g lte on all the time, bluetooth on all the time, sync with 3 emails, Facebook, weather widget, weather screen refresh every 30mins, location high accuracy, edge lighting, aod schedule 7pm-7am, was 100% at 6am, played games on it lots, used the phone 2x, 1 hour call and a 30 mins call, text messages, it's 130pm and I'm at 55%, try a factory reset then log in to your gmail then just try to update the phone if there is any. Then reboot then start installing your apps. If it doesn't work call carrier customer service and complain about the battery not holding up like some people you know who has note 8. They might replace it with a new one.
Sent from my SM-N950U using XDA-Developers Legacy app

herandy said:
What's your screen on time usage? 5-6 is probably the normal amount you would get with most phones (This is the most important thing if nothings draining the battery). And yes, it seems you might need a factory reset.
Click to expand...
Click to collapse
Phone died 15-20 minutes after I did the screenshots, so a bit more than 2 hours...
So.. yeah.. I will try a factory reset and start install all the apps bit by bit and see which one causes the troubles.. hopefully is nothing more than that.

Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.

douger1957 said:
Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.
Click to expand...
Click to collapse
I did a google restore from backup! Damn! And I was thinking that I should maybe to a clean, one by one app install.

My battery life is also not great but im using full resolution and when i remember time when i got S6 edge on launch....the battery was horrible but after few updates it was perfect so stay strong and wait a bit

jirka607 said:
My battery life is also not great but im using full resolution and when i remember time when i got S6 edge on launch....the battery was horrible but after few updates it was perfect so stay strong and wait a bit
Click to expand...
Click to collapse
can you translate "not great" in hours? :laugh: Because I will say that mine is second after horrible.. with update done.
I will start the reset in a short while and I will test it tomorrow with minimum apps installed.. those which I really must have in a working day..

Maximum 5 hrs on wifi normally about 3-4 battery is not great on note yet....some optimalization would be nice

I use Ampere to monitor the instan drain of current. In a quiet situation (screen on, internet or tapatalk browsing, gear connected, wifi and data turned on) you should have something 200 mA drain.
Inviato dal mio SM-N950F utilizzando Tapatalk

Maybe some of the settings changes you're making are somehow rendering your phone less efficient.
I have the USA unlocked version and use it as it came without changing to a dark theme or turning anything off and the battery life is much better than yours.

douger1957 said:
Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.
Click to expand...
Click to collapse
I restored from a helium backup. My battery life wasn't good for about a week but it did last all day down to 20-30% at the end of the day. After a week it has improved maybe due to apps updating. Now I'm at 70-80% at the end of the day with moderate use. I have disabled several apps I didn't need as well.

Seems like it's hit or miss with the battery life. I see a lot of people happy and some are having problems. Hopefully Samsung might push a update to help.

Get cpu spy and verify that your devoce is going into deep sleep when off(mine wasnt at first until i froze/removed some rouge apps). Install accubattery and do a benchmark and see how your battery does. At least do 6 discharge cycles first to see an average. Also, in device maintenance, you can make all apps doze when not being used now.. this is a new feature. Add all of your apps and they get put to sleep immediately. I get 8 hours SOT this way
Sent from my SM-N950U using Tapatalk
---------- Post added at 09:11 PM ---------- Previous post was at 09:09 PM ----------
Raklik said:
Hey guys, I'm wondering what can I do to improve my Note 8 battery life. Seems to me that is draining and I do not get the chance to use it too much. Maybe you have an idea how to optimize and track the apps are overusing the battery, so far I was not able to detect which app/component drains my battery. Even Samsung seems that doesn't know since there is no message regarding background processes with heavy usage.
Basically I finished fully charging at 9:15 AM and now 16:15PM time I started to write the post and make the screenshots, it has 16%. What I did all this time with the phone, was:
- a bit of browsing,
- make one NFC payment,
- have the S3 gear connected on bluetooth.
- few twitter messages and viber really small usage. (less than 40 messages overall)
So here are my settings
- WIFI is off and I'm using 3G connection (I stopped LTE thinking that requires more battery.. , correct me if I'm wrong please),
- screen not even on 50% and auto brightness off (using HD+ and a dark theme, everything is so dark!)
- AOD
- no led, no gestures (most of them I turn off for testing purpose)
- Medium battery saver on.
- No phone calls
- few notifications (not more than 20, also the notification is optimized to apps I'm concerned)
Any suggestion how to make it to end of working day .. at least?
I was waiting so long for a new note and now I'm a bit disappointed and I hope that is something I do wrong..
Funny is I just realized that by mistake I put the phone on airplane mode while making the screenshots, still percentage was flying away even like this. I lost 2% making screenshots in a matter of couple of minutes.
Please find the screenshots attached in the link down bellow, were to big to add them to the post.
https://drive.google.com/drive/folders/0B7hYWRFdyQqPOFp3alVYNUxJUW8?usp=sharing
Thanks!
Click to expand...
Click to collapse
You dont have to use med battery saver either, just read my reply on this thread and you will be good. You may have to experiment a little to get your device to go into deep sleep when screen off. Mine didnt at first. Its on my other comment
Sent from my SM-N950U using Tapatalk

I got back from work and my phone was at 75% that's between 9:30am and 6:30 pm. So my battery life is pretty good. I lose about 5% overnight.

I average 7hrs screen time Got 8hrs yesterday
Sent from my SM-G955U using Tapatalk
---------- Post added at 12:53 AM ---------- Previous post was at 12:50 AM ----------
Here ya go
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Sent from my SM-N950U using Tapatalk