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Hi everyone here
I got a concern about my TF101 Tablet.
When I switch my Tablet screen off and set the WiFi as turn off when screen off, my battery still drains extremely fast. From the pic you can see, my battery is running out from full to 10% in only 1day and 6 hours without any use. My GPS and bluetooth are also turned off in this period. From the pic you can also see my CPU load is over 30% at most of the time.
From the second pic, I can see the process "System" uses the CPU very hard
Can some one figure it out and I will appriciate it very much!
Here I have to bump...
wm2001wm2001 said:
Hi everyone here
I got a concern about my TF101 Tablet.
When I switch my Tablet screen off and set the WiFi as turn off when screen off, my battery still drains extremely fast. From the pic you can see, my battery is running out from full to 10% in only 1day and 6 hours without any use. My GPS and bluetooth are also turned off in this period. From the pic you can also see my CPU load is over 30% at most of the time.
From the second pic, I can see the process "System" uses the CPU very hard
Can some one figure it out and I will appriciate it very much!
Click to expand...
Click to collapse
I am seeing the exact same problem, not sure what the cause is either. I read somewhere about "wakelocks" where some app will try to keep the CPU awake when you try to go into standby and it results in high system usage.
Thank you for this thread, I am also having this problem. I think the problem for me may be because of Google Maps.
Basically, I'm running some tests now. I had massive battery drain overnight while I slept. The tablet would go from 90% down to 50% in an 10 hour period (4%/hr). It didn't matter if it was docked or not docked. I was running Google Maps v5.8.0 and saw some people post that the new version is eating up the battery. So I removed the updates for Google Maps and tried again.
Now I'm running v5.6.1 of Google Maps and the battery went from 100% to 42% in a 17 hour period with absolutely no use (3.5%/hr). I checked battery usage, and Google Maps is at the top and it's taking up 41% of what was used. That's ridiculous.
So now I'm going to install the latest Google Maps and see if this helps at all. I've also attached some screen shots of my latest tests.
Other details:
Wi-Fi is set to sleep when the screen turns off.
MobileDock Battery saving mode is checked.
Use location for Google Search is unchecked.
I did another test last night after having updated Google Maps to v5.9.0 (latest). I got the same results. Google Maps is eating through my battery when the tablet should be sleeping.
Here's the results:
The tablet was undocked, and fully charged.
I didn't touch the tablet for 15 hours.
The battery went from 100% to 55% in 15 hours = 3%/hr drain.
Google Maps was largest user of battery at 75%!!
I also did a reboot after I updated Google Maps to v5.9.0.
WTH is going on here?! Anyone have any ideas??
ScubaSteveo said:
I did another test last night after having updated Google Maps to v5.9.0 (latest). I got the same results. Google Maps is eating through my battery when the tablet should be sleeping.
Here's the results:
The tablet was undocked, and fully charged.
I didn't touch the tablet for 15 hours.
The battery went from 100% to 55% in 15 hours = 3%/hr drain.
Google Maps was largest user of battery at 75%!!
I also did a reboot after I updated Google Maps to v5.9.0.
WTH is going on here?! Anyone have any ideas??
Click to expand...
Click to collapse
Try turning off all location services (WIFI/GPS) and see if the problem goes away. I did something similar and the sleep mode CPU utilization dropped back to 1% or so. I haven't yet enabled the settings one by one to see which one cis causing the issue.
wilkster said:
Try turning off all location services (WIFI/GPS) and see if the problem goes away. I did something similar and the sleep mode CPU utilization dropped back to 1% or so. I haven't yet enabled the settings one by one to see which one cis causing the issue.
Click to expand...
Click to collapse
You are correct. I am able to turn the Airplane mode on and see virtually no battery drain at night. But this is rather annoying to have to turn on airplane mode every time you are done using the tablet and turn it back off whenever you want to use the tablet.
The best option would be to locate the source of this issue and fix that. Tonight I'll be testing Google Latitude turned off to see if this fixes anything.
As a test I turned back on location services (GPS/Google) but unchecked the use WiFi for location and found the problem went away overnight. Only a few % CPU use. Not quite as good as leaving in Airplane mode but close. Lost about 2-3% CPU over 7 hours. WiFi use setting is to disable with screen turned off.
So after my test last night, I still had massive battery drain.
I turned off Latitude as best I could last night and still same result. Google Maps is chewing up my battery like no other: from 100% to 52% in 15 hours with zero usage by me. Anyone have any other ideas? Any other apps that might be causing this?
ScubaSteveo said:
So after my test last night, I still had massive battery drain.
I turned off Latitude as best I could last night and still same result. Google Maps is chewing up my battery like no other: from 100% to 52% in 15 hours with zero usage by me. Anyone have any other ideas? Any other apps that might be causing this?
Click to expand...
Click to collapse
I had previously logged out of latitude and saw the same high drain result as you, so don't think it is that. When I disabled the WiFi location the drain stopped (leaving gps on). I agree it may be Google maps related since it uses the WiFi location services (since maps uses that service to locate the tablet along with gps).
I have a similar issue, but my problem is not with Google Maps. Instead, the main battery drain is "Android System." I usually leave my Transformer on standby 24/7 and used to only have to charge once a week. This problem appeared out of the blue a few days ago.
Google mail is the only thing on auto-sync, and this setting has never caused any issues in the past. Thus, I'm not sure why Android System is now suddenly waking up at random when asleep. You can see in the plot that System constantly requires 30% CPU usage once it happens, until I actually turn the device back on.
In addition, my wi-fi sleep policy is set to turn off when the screen is off. Recently, it seems it is always on, even when the device is asleep.
EDIT: The graphs from the OP suggest that our issue might be related, but the problem appears to manifest much more frequently for the OP. Crossing my fingers that next week's update somehow fixes this problem.
LagginTimes said:
I have a similar issue, but my problem is not with Google Maps. Instead, the main battery drain is "Android System." I usually leave my Transformer on standby 24/7 and used to only have to charge once a week. This problem appeared out of the blue a few days ago.
Google mail is the only thing on auto-sync, and this setting has never caused any issues in the past. Thus, I'm not sure why Android System is now suddenly waking up at random when asleep. You can see in the plot that System constantly requires 30% CPU usage once it happens, until I actually turn the device back on.
In addition, my wi-fi sleep policy is set to turn off when the screen is off. Recently, it seems it is always on, even when the device is asleep.
EDIT: The graphs from the OP suggest that our issue might be related, but the problem appears to manifest much more frequently for the OP. Crossing my fingers that next week's update somehow fixes this problem.
Click to expand...
Click to collapse
The system process was the same issue on my system as well (didn't show up as google maps). I confirmed that turning off the "Use Wireless Networks" under Location and Security stopped the constant 30% cpu usage when in standby.
After freezing Maps, which is the biggest culprit for me....i noticed, System Process' was way high now.
28%
After doing some searching.... came up with this
http://forum.xda-developers.com/showpost.php?p=16828183&postcount=605
At least for my case.
Google Maps battery drain Solved!
For me, I figured out the issue was Latitude.
I was getting bad battery drain overnight and Google Maps was the largest user by far. I finally signed out of Latitude completely. Battery drain dropped to around 2% (total) overnight! This is acceptable!
As it turns out, Latitude wakes up my device while it should be sleeping in order to update my location and therefore draining massive battery overnight. I'm going to post this as a bug with Latitude/Google Maps because this is causing waaaay too much battery drain.
So it looks like I won't be able to leave Latitude signed in. Once I'm done using it, I will have to sign out of Latitude. This way I can leave Wi-Fi on and set to turn off when the screen turns off. Thereby I get really good battery life again.
On a side note, my phone has the same behaviour, but I never noticed it because I'm usually charging my phone at night. So Latitude...basically...sucks (battery).
I have been using my N5 for a couple of weeks and I know its battery life isn't the greatest. I have watched some youtube videos for tips on better battery life, and here's what I have done.
Turn off auto brightness, and screen brightness is about 1/4 of the way
Turn off haptic feedback
Turn off vibration on keypress
Turn off sync for most Google services
Turn off NFC
Location service set to battery saving mode
But it seems like after all that's been done, the battery is still draining pretty fast. For example, I went out for dinner and drinks with friends and my phone is just sitting in my pocket the whole time not being used, 4 hours later, I have lost 30% battery. Coming from an htc one, it doesn't drain nearly as much. Is this abnormal or just about right for the N5, thoughts?
Infiniteloop7 said:
I have been using my N5 for a couple of weeks and I know its battery life isn't the greatest. I have watched some youtube videos for tips on better battery life, and here's what I have done.
Turn off auto brightness, and screen brightness is about 1/4 of the way
Turn off haptic feedback
Turn off vibration on keypress
Turn off sync for most Google services
Turn off NFC
Location service set to battery saving mode
But it seems like after all that's been done, the battery is still draining pretty fast. For example, I went out for dinner and drinks with friends and my phone is just sitting in my pocket the whole time not being used, 4 hours later, I have lost 30% battery. Coming from an htc one, it doesn't drain nearly as much. Is this abnormal or just about right for the N5, thoughts?
Click to expand...
Click to collapse
7.5%/hr is high for standby time. You can get it down to 1-2%/hr by using more of the battery-saving tips you'll find in the various threads on the subject.
Sent from my Nexus 5
Check the wakelock with better battery stat
If you don't need GPS on all the time turn that off too saves quite a bit of battery even the battery saving mode isn't that battery friendly
Sent from my Nexus 5 using Tapatalk
Infiniteloop7 said:
But it seems like after all that's been done, the battery is still draining pretty fast. For example, I went out for dinner and drinks with friends and my phone is just sitting in my pocket the whole time not being used, 4 hours later, I have lost 30% battery. Coming from an htc one, it doesn't drain nearly as much. Is this abnormal or just about right for the N5, thoughts?
Click to expand...
Click to collapse
You really need to share your battery usage screen, and show what apps drained your battery. It is possible that you were had low signal strength, and so your phone kept trying to search for a signal and drained itself. Also, as dark_ente suggested, look at betterbatterystats results to see if you had wakelocks.
With no active use, that is very high drain - unless you were in a very low signal strength area, or had an app keeping your phone awake.
When I work from home, connected to WiFi, my phone drains about 3-4% in about 9 hours (assuming I don't actively use it. I use pushbullet to show me all notifications on my PC, so I don't have to turn my phone on at all)
Infiniteloop7 said:
Turn off auto brightness, and screen brightness is about 1/4 of the way - I do the same (actually, I set it to the lowest possible level), because it is too bright
Turn off haptic feedback - I do the same, because it is annoying
Turn off vibration on keypress - I do the same, because it is annoying
Turn off sync for most Google services - I leave sync on
Turn off NFC - I leave it on
Location service set to battery saving mode - I do the same - but set up a tasker profile to enable GPS when I launch maps - Disabling GPS helped the most in my case
Click to expand...
Click to collapse
jj14 said:
You really need to share your battery usage screen, and show what apps drained your battery. It is possible that you were had low signal strength, and so your phone kept trying to search for a signal and drained itself. Also, as dark_ente suggested, look at betterbatterystats results to see if you had wakelocks.
With no active use, that is very high drain - unless you were in a very low signal strength area, or had an app keeping your phone awake.
When I work from home, connected to WiFi, my phone drains about 3-4% in about 9 hours (assuming I don't actively use it. I use pushbullet to show me all notifications on my PC, so I don't have to turn my phone on at all)
Click to expand...
Click to collapse
When you say turning off GPS and only enable it while launching maps, do you mean turn off location completely? Does that affect other Google apps/services? Such as Google now
If all else fails, do a factory reset.
Sent from my Nexus 5 using xda app-developers app
I noticed from the past few days that my N5 seems to have abnormal battery usage pattern. There are days with mostly light use (text messaging, whatsapp messaging, some web browsing, minimal on screen time) I can go for 2 days without charging, and I am only losing 1% battery per hour when it's in stand by. However, they are times (see attachment) when I didn't use my phone for 11 hours, and the battery level is down from fully charged to 26%. Can anyone give me some ideas on what may be the culprit?
kevtrysmoddin said:
If you don't need GPS on all the time turn that off too saves quite a bit of battery even the battery saving mode isn't that battery friendly
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
battery saver mode is actually very battery friendly. i've done extensive testing...
---------- Post added at 06:25 PM ---------- Previous post was at 06:24 PM ----------
Infiniteloop7 said:
I noticed from the past few days that my N5 seems to have abnormal battery usage pattern. There are days with mostly light use (text messaging, whatsapp messaging, some web browsing, minimal on screen time) I can go for 2 days without charging, and I am only losing 1% battery per hour when it's in stand by. However, they are times (see attachment) when I didn't use my phone for 11 hours, and the battery level is down from fully charged to 26%. Can anyone give me some ideas on what may be the culprit?
Click to expand...
Click to collapse
you need 'better battery stats' log. . . stock battery screen tells you almost nothing
Infiniteloop7 said:
When you say turning off GPS and only enable it while launching maps, do you mean turn off location completely? Does that affect other Google apps/services? Such as Google now
Click to expand...
Click to collapse
No. I keep location enabled all the time, but in battery saver mode - that way, google now, weather widgets etc can get my approximate location (using cell tower triangulation), but can't activate my GPS for accurate location fix.
When I use maps/navigation (which in my case is the only time when I need accurate GPS location fix), I change from battery saving location to the GPS type location fix, and when I'm done with maps/nav, I switch back to battery saving location.
If you turned location off completely, google now, and possibly other apps (like weather widgets for current location) won't work.
Infiniteloop7 said:
I noticed from the past few days that my N5 seems to have abnormal battery usage pattern. There are days with mostly light use (text messaging, whatsapp messaging, some web browsing, minimal on screen time) I can go for 2 days without charging, and I am only losing 1% battery per hour when it's in stand by. However, they are times (see attachment) when I didn't use my phone for 11 hours, and the battery level is down from fully charged to 26%. Can anyone give me some ideas on what may be the culprit?
Click to expand...
Click to collapse
From your 2nd screen print, you can see that your phone was awake pretty often. As @Enddo wrote, betterbatterystats should help you figure out what is causing the wakelocks.
Enddo said:
battery saver mode is actually very battery friendly. i've done extensive testing...
---------- Post added at 06:25 PM ---------- Previous post was at 06:24 PM ----------
you need 'better battery stats' log. . . stock battery screen tells you almost nothing
Click to expand...
Click to collapse
jj14 said:
No. I keep location enabled all the time, but in battery saver mode - that way, google now, weather widgets etc can get my approximate location (using cell tower triangulation), but can't activate my GPS for accurate location fix.
When I use maps/navigation (which in my case is the only time when I need accurate GPS location fix), I change from battery saving location to the GPS type location fix, and when I'm done with maps/nav, I switch back to battery saving location.
If you turned location off completely, google now, and possibly other apps (like weather widgets for current location) won't work.
From your 2nd screen print, you can see that your phone was awake pretty often. As @Enddo wrote, betterbatterystats should help you figure out what is causing the wakelocks.
Click to expand...
Click to collapse
I am still pretty new to Android and I don't know how to root my phone. I did check out betterbatterystats on google play, it says the app doesn't work on non-rooted Android phone running kitkat, that's why I haven't installed it yet. It seems that kitkat made some changes which prevent battery usage apps from working properly, wake lock detector also won't work on non-rooted phones running kitkat
Infiniteloop7 said:
I am still pretty new to Android and I don't know how to root my phone. I did check out betterbatterystats on google play, it says the app doesn't work on non-rooted Android phone running kitkat, that's why I haven't installed it yet. It seems that kitkat made some changes which prevent battery usage apps from working properly, wake lock detector also won't work on non-rooted phones running kitkat
Click to expand...
Click to collapse
Rooting is pretty easy. And it opens up a whole new world.
________________________
Sent from my Nexus 5
Infiniteloop7 said:
I am still pretty new to Android and I don't know how to root my phone. I did check out betterbatterystats on google play, it says the app doesn't work on non-rooted Android phone running kitkat, that's why I haven't installed it yet. It seems that kitkat made some changes which prevent battery usage apps from working properly, wake lock detector also won't work on non-rooted phones running kitkat
Click to expand...
Click to collapse
While betterbatterystats will work on kitkat (unrooted), it won't give you partial wakelock summary That requires root)
http://forum.xda-developers.com/showpost.php?p=15869904&postcount=3 - see FAQ 1 and 3. You can download the kitkat compatible version from http://forum.xda-developers.com/showthread.php?t=1179809
As PhilipTD wrote, rooting a N5 is pretty easy, but if you don't feel comfortable doing it, don't.
If you decide to root, follow the steps in first post at the link that PhilipTD provided.
Note that Step 1 (unlocking bootloader) will wipe out all your data.
Before you root, why not disable GPS (keep location active) and see if that helps? Also, how often do you reboot your phone?
I've only had my nexus for a week now and I'm trying to hunt down the reason I'm getting poor battery life. At first it was nlp wakelocks but that went away on its own somehow. Now its my wifi draining battery, in 8 hours of idle overnight it went from 100% to 79% and wifi was the top usage. I've never seen this before on any phone with any rom so I'm not sure what to do about it.
Hi,
Try Settings/Wi-Fi/Menu/Advanced/ and untick Scanning always available...
This is what I did to improve my battery:
1. Location Services : If you are not in a neighborhood with a lot of wifi spots you will most likely feel this draining your battery life. Under settings make sure that Location Services is set to battery saving and not High accuracy.
2. Widgets : Weather widgets, games eat battery by constantly fetching information . Check the settings for these widgets and make sure they are using wifi and not updating the weather information every 30 mins or so. I keep my settings to update weather information every hour to keep it reasonable. The Gmail widget sometimes eats your battery too. I removed the widget and used an icon in the dock at the bottom to check my email. Another thing I noticed was that some widgets are just more battery intensive than others. For example I found HD widgets consumed nearly twice as much battery as Chronus on the home screen but both displayed the same information.
3. Restart your phone : Sometimes residual processes from closed apps could cause issues. Restart your phone if you haven't done it in a while and it should clear up any unnecessary things.
4. Keep wifi on during sleep : I made sure my phone uses wifi even when its sleeping. 3g / 4g eats the battery like crazy if you turn off wifi when your phone sleeps. This should be a default setting as pointed out by some users. In my case it had been changed probably when I was tinkering with the phone. You can find this setting in the Settings -> Wifi -> advanced -> Keep wifi on during sleep.
You can also use apps like Greenify , Tasker , and Llama.
5. Don't use Automatic Brightness : Turns out if the sensors are constantly looking to adjust brightness it takes up more battery. I set my brightness at around 60% and it works just fine throughout the day.
6. Use wifi over 3G/4G/LTE if possible
7. Switch off wifi when using Data: Android doesnt switch off your WiFi when you use data because Google wants you to use it for Locations and help build their database of networks.Switch off WiFi completely when using data to save a good chunk of battery.
8. Turn off Vibration on touch : Typing uses quite a bit of battery over the course of a day. Try switching Vibration on touch off.
9. Use Franco Kernel: : This will require rooting your device however it makes it a lot more power efficient.
10. Turn down the Facebook refresh rate : Make sure it updates not very often( every 3-4 hours) or never. IMO your phone is better off without Facebook or any other battery hog social networking apps.
hi
i have a new (3 months old) unrooted nexus 5 update to latest OS version which is showing some very odd stats wrt battery consumption.
first i had heavy battery drain but then i disabled the scanning options in the location menu which helped. but still even with brightness at only 18%, battery saver on 95% of the time, location & mobile data off all the time & wifi only used for short bursts it still seems to drain quite quickly.
app usage stats as reported by the inbuilt battery stats option differs quite a bit from other battery management apps (du battery saver, battery doctor, gsam battery monitor)
for eg. inbuilt battery stats doesnt even show wifi consumption in the stats even if i use it for few hours (then suddenly one time it showed up with some excessive consumption stats - 1500mah for 2 hours usage; photos attached). very often it shows gravity screen app as the biggest consumer of battery while other apps show gravity screen as consuming very little power. otoh gsam shows battery doctor as consuming the most of all the apps.
what could be the issue?
gsam shows average battery life with screen on as 3h 42m. is that ok?
was also wondering if the optimization options of the battery management apps work or are they gimmicks? for eg both du battery saver & battery doctor show 'x' number of apps consuming power in background & when you press the optimise/close apps button it shows some cool effects of shutting down those apps but you come back after a few hours & the same apps show up in the running in background.
also, the front camera is very grainy. cant believe its that bad in what was a flagship phone. is it just my phone or is that the how it is for other users?
anyone with any inputs?
You got nearly 5 days on a single charge??? Yes, your battery consumption is fine. Nearly 4 hours of SOT is fantastic.
The graininess of the camera will depend a lot on the lighting. Unless you have a light shining directly on your face, the picture is probably pretty dark. That said, it's "only" like a 3MP camera. It's well known as a sub-standard front camera (I'm not a selfie machine so I don't really care). When you think about how microscopic the light sensor is on the front camera, it's no wonder the picture is grainy.
exninja said:
You got nearly 5 days on a single charge??? Yes, your battery consumption is fine. Nearly 4 hours of SOT is fantastic.
The graininess of the camera will depend a lot on the lighting. Unless you have a light shining directly on your face, the picture is probably pretty dark. That said, it's "only" like a 3MP camera. It's well known as a sub-standard front camera (I'm not a selfie machine so I don't really care). When you think about how microscopic the light sensor is on the front camera, it's no wonder the picture is grainy.
Click to expand...
Click to collapse
thanks for your reply exninja
that 5 days was a one time thing where i barely touched the phone & then only to test it. i wish it were that good LOL. normally i get about 2 days with very conservative usage (brightness at only 18%, battery saver on 95% of the time, location & mobile data off all the time & wifi only used for short bursts, 0 talktime)
is 4 hrs SOT that good? i see a lot of people getting 5 to 6 hours + & that too without those conservative usage patterns.
the thing that got me worried is the strange battery usage stats reported in the stock settings.
Honestly I wouldn't worry that much about what each app says is using energy. They're each consuming very little anyways. I'm not familiar with gravity screen so I wouldn't know about it.
I haven't heard of many people getting 5-6 hours of sot, especially since lollipop. I got 4 hours on KitKat, then dropped to 3 or less on lollipop. Now it's usually around 2 hours.
@fguy76
First of all, just to let you know, recently Google Play Services have been acting up. Sometimes I get normal battery drain overnight when I sleep, and sometimes it drains like crazy. For now, there is nothing we can do about Google Play Services.
However, if u noticed that WiFi has been turned on the whole time via the battery history chart, despite the fact that you did not even turn on WiFi at all during that period, then this can only mean one thing. You must have enabled WiFi Scanning (the famous Scanning always available bug in Lollipop & KitKat).
To disable WiFi Scanning, go to Settings first. Then on the top of settings, there is a search bar. Type in "Scanning".
Then u will see the following options. Make sure u disable WiFi Scanning.
Having said this, there is another annoying bug. This bug is when you have left a WiFi hotspot and forgotten to turn of WiFi. So after awhile u realised it and u proceed to turn off WiFi. But hours later, u check your battery stat, and it still shows your WiFi have been active the whole time despite turning it off. For this, the only workaround is to reboot the phone. To avoid this bug, always turn off WiFi b4 u leave the WiFi hotspot area.
@pcphobic i have wifi scanning off & i always remember to turn wifi off when not using it so that second scenario is not an issue with me
fguy76 said:
@pcphobic i have wifi scanning off & i always remember to turn wifi off when not using it so that second scenario is not an issue with me
Click to expand...
Click to collapse
@fguy76
The other solution that I can offer is under Location settings, go to Google Location History and make sure it is turned off.
You can still use GPS based apps with Google Location History turned off.
I suspect that if u find intermittent wifi showing up in your battery history, it could only mean that Google Location History is periodically waking up and using wifi to get an approximate location. I used to get this until I turned off Google Location History.
I just got an LG V20 which is good on battery when in use but sucks when not in use. The culprit is always wifi. I just discovered the root cause is Location services that is using wifi to get locations even when wifi is off.
To stop this, go to settings->location->scanning.
Uncheck wifi scanning. For good measure, uncheck bluetooth scanning.
Go to wifi menu ->advanced-> keep wifi on when screen is off
Change to never or "only when plugged in"
Hi,
thanks for your helpful tips..
So out of the 3 tips you have:
1. Uncheck wifi scanning
2. Uncheck bluetooth scanning
3. Turn wifi off when screen is off
Any idea how much does each option save (if you've quantified)?
I'm happy to follow points 1 and 2. I'd only do 3 if it really helps a lot, because most apps would use data if wifi isn't available to periodically phone home.
I have always been dissappointed with my V20 standby time.. I had all of these settings on.. so i'll see how she does now they are off.
Thanks!
My standby time is from 0-4% over 8-9hrs. I really cant complain.... but the phone is facing down.
I wasn't aware of the wifi location scanning, and the bluetooth scanning. Giving it a try as my standby time has been horrible lately.
I am also facing severe battery drain on my LG V20. Battery easily drains by 5-10% per hour even when the phone is lying idle with screen off. Major culprits are 'Phone Idle', 'Android System' and 'Android OS'.
coolravsun said:
I am also facing severe battery drain on my LG V20. Battery easily drains by 5-10% per hour even when the phone is lying idle with screen off. Major culprits are 'Phone Idle', 'Android System' and 'Android OS'.
Click to expand...
Click to collapse
Try what is mentioned here
Post your screen shots here and tag or quote this post
As a side note, I've found that using wifi and cell data to help location services causes maps to scan these options and slow down (maps keeps saying every 5 to 15 seconds "searching"). By using gps only, the maps app is faster and less battery drain.
Obviously if you are indoors you need the help of wifi or cell data. But in the car or outside it is unnessary.
Thanks for your tips it's very good for my life battery. :good:
One Twelve said:
Try what is mentioned here
Post your screen shots here and tag or quote this post
Click to expand...
Click to collapse
I tried as suggested in the post you shared. Once the Bugreport was generated, I got a notification to click it to share. But, upon clicking nothing happened. I did not get anything (no pop-up, no options) further to share it. I tried thrice but, every time same end result.
How can I access the Bugreports generated on the phone?
coolravsun said:
I tried as suggested in the post you shared. Once the Bugreport was generated, I got a notification to click it to share. But, upon clicking nothing happened. I did not get anything (no pop-up, no options) further to share it. I tried thrice but, every time same end result.
How can I access the Bugreports generated on the phone?
Click to expand...
Click to collapse
Ah, seems like the obvious question but you can't.
I've found the most reliable way is to email them and then download them
One Twelve said:
Ah, seems like the obvious question but you can't.
I've found the most reliable way is to email them and then download them
Click to expand...
Click to collapse
Finally! I was able to share and download the bug report. I am attaching the Historian Graph and Aggregated Stats screenshots here. Please let me know what you find.
coolravsun said:
Finally! I was able to share and download the bug report. I am attaching the Historian Graph and Aggregated Stats screenshots here. Please let me know what you find.
Click to expand...
Click to collapse
- see the cpu running, userspace wakelock & screen on lines. They seem to match. Screen is on, cpu working with userspace wakelock. Close to 7pm the screen is off but the cpu is running, because you were listening to audio. I don't see a problem here. Looks normal
- you screen off discharge rate is 2.56%/h which seems a bit high. If you were streaming audio this might add to it. Do you have the second screen on when the main screen is off ?
- somewhere around 12pm you are using data for about an hour. Mobile Signal strength isn't very good, mostly yellow. What i don't understand is why your wifi is also on ? and this is in an area where wifi signal is bad. Both of these will add to drain. And in two hours your battery dropped from 70 to 40
- little after 1pm you're on wifi for a couple of hours but the signal is weak
- around 5pm you're back on data streaming audio and battery takes a nose dive here. Down 30% in like an hour. Were you moving ?
- then you charge up to 85%, doze kicks in which is good, if there was app drain doze would not come on, for the next 5h without use, you lose about 5%
- the part i don't understand is between 1am & 6am, battery drops 10% yet full doze (blue) is on. So there is some activity going on there. What ? sync ? updates ?
Not sure about the aggregated stats as you've recharged up and run down fr a second cycle so it could be your off screen drain is twice as high because of that
charge up again, go through your day and save log when you're at 5% and lets see the two screenshots from just one charge cycle
One Twelve said:
- see the cpu running, userspace wakelock & screen on lines. They seem to match. Screen is on, cpu working with userspace wakelock. Close to 7pm the screen is off but the cpu is running, because you were listening to audio. I don't see a problem here. Looks normal
- you screen off discharge rate is 2.56%/h which seems a bit high. If you were streaming audio this might add to it. Do you have the second screen on when the main screen is off ?
- somewhere around 12pm you are using data for about an hour. Mobile Signal strength isn't very good, mostly yellow. What i don't understand is why your wifi is also on ? and this is in an area where wifi signal is bad. Both of these will add to drain. And in two hours your battery dropped from 70 to 40
- little after 1pm you're on wifi for a couple of hours but the signal is weak
- around 5pm you're back on data streaming audio and battery takes a nose dive here. Down 30% in like an hour. Were you moving ?
- then you charge up to 85%, doze kicks in which is good, if there was app drain doze would not come on, for the next 5h without use, you lose about 5%
- the part i don't understand is between 1am & 6am, battery drops 10% yet full doze (blue) is on. So there is some activity going on there. What ? sync ? updates ?
Not sure about the aggregated stats as you've recharged up and run down fr a second cycle so it could be your off screen drain is twice as high because of that
charge up again, go through your day and save log when you're at 5% and lets see the two screenshots from just one charge cycle
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Click to collapse
Thanks a lot! Please find my answers in sequence.
- I listen to music while going to work. But, that is, till 8:30 AM only. Yes, I have 2nd screen ON when the Main display is OFF.
- I watch stored videos during lunch (12-1pm) for around an hour but it shouldn't be using data as I am playing stored videos.
- Around 5 pm, I leave for home. Again while going home I listen to music for half an hour.
- I have no Idea of what is happening during Night because I just leave it and don't use it until morning. In fact, I have scheduled the 2nd screen to be off between 11 pm and 6 am
I will try to run a proper cycle as you have suggested and will recapture the logs.
I understand the battery dropping while I am using the phone (listening to music/watching videos/browsing/anything else). What I don't get is the battery dropping insanely when I am not using it. For example, once I reach the office, I stop the music, kill the music player and just keep the phone aside. After 1-2 hours, as I check my phone I find battery dropped by 10% or so! It's the battery drain while my phone is just lying idle that is troubling.
Also, I have noticed that once I charge my phone and then leave it (Not using it) the battery drain is minimal like 1% per hour. But, once I run some app (music/browsing etc) for a little while and then leave the phone, the idle battery drain is pretty high.
coolravsun said:
Thanks a lot! Please find my answers in sequence.
- I listen to music while going to work. But, that is, till 8:30 AM only. Yes, I have 2nd screen ON when the Main display is OFF.
- I watch stored videos during lunch (12-1pm) for around an hour but it shouldn't be using data as I am playing stored videos.
- Around 5 pm, I leave for home. Again while going home I listen to music for half an hour.
- I have no Idea of what is happening during Night because I just leave it and don't use it until morning. In fact, I have scheduled the 2nd screen to be off between 11 pm and 6 am
I will try to run a proper cycle as you have suggested and will recapture the logs.
I understand the battery dropping while I am using the phone (listening to music/watching videos/browsing/anything else). What I don't get is the battery dropping insanely when I am not using it. For example, once I reach the office, I stop the music, kill the music player and just keep the phone aside. After 1-2 hours, as I check my phone I find battery dropped by 10% or so! It's the battery drain while my phone is just lying idle that is troubling.
Also, I have noticed that once I charge my phone and then leave it (Not using it) the battery drain is minimal like 1% per hour. But, once I run some app (music/browsing etc) for a little while and then leave the phone, the idle battery drain is pretty high.
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Click to collapse
Same sequence
- When you have the second screen on, is the phone facing up or down. What i notice with that second screen is it ignores any brightness settings. If the phone is face up and pointed at a light, the second screen becomes very bright. If its facing away from the light then it dims. Depending on how your phone faces you will either have more or less drain here, without doing anything and phone just sitting there. Typical overhead with second screen on and normal brightness ie not too bright is around 1% per hour. This could be adding to your off screen drain. Why not try a couple of cycles. One with second screen off and another with second screen on. Just to see how your off screen drain rate is like.
You say you listen to music only upto 8:30AM, take a look at the audio line. Can you see audio triggering ? there's little blips there after 8:30AM which continues till 5:30PM where its solid. This is your ride back where you listen for an hour. The 5:30 audio is ok but the blips in between are not leaving aside lunch video. Each time there is an audio blip there is a wakelock. Pay attention to the duration of the audio blip, if its a few seconds it could just be notification, but if its longer, does it correspond to your use.
Now look at the top app line, try to find which apps are running when audio triggers. To do that hover over the top app line which coincides with audio when you were not listening to audio. You will see a popup screen with a list of apps. Or check History Stats - TopApplicationSummary for a table, screen shot that and post
Do you use a lot of widgets that update in the background ?
- something was using mobile data when you were watching stored videos at lunch. Take a look at the'mobile radio active' line and you see activity there around lunch. Your wifi however is off and not running. If there were any apps running they were using mobile data, this is extra drain
- take a look at the line that says 'foreground process'. it's pretty solid right through both your runs. The only time it stops is when you recharge. This is a hint something is up. If you hover above it what does the popup say ? try moving along the line and observe whether the information changes
There shouldn't a foreground process running when you're not using the phone. Maybe if you can screen shot, the table that displays under History Stats - Foreground Process Summary
Scroll down and under the graph and on the left you will see three headers with twisties, System stats, History stats & App Stats
Hold on to your bug report files and they will be useful to verify if any changes you make take effect or not
- 1% per hour corresponds to second screen on, with it off your drain would be halved. However having drain after leaving a music or browsing app isn't good. It means a wakelock was caused and its not releasing so doze can't kick in. So battery will drain. If the phone is shaking, say in your pocket as you walk around, full doze won't kick in either
Which social media apps do you use.
Stock launcher or other if so which
I've found just buying a new battery off of ebay for $10 is the the easiest way to gain back that extra hour of on screen time and extend stand by. That's why the phone was made with a removable battery. I have 3 of them and don't need to touch a charger for a week. and when the time comes to charge the batteries, just put them in the charging docks and done.