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Hello guys,
Please help me,i don't know what to do anymore,i've search the threads in this forum and try any solution given for the same problem as mine but none of them work.i don't know what makes my battery draining very very fast,only about 5 hours from 100% to 10%..... in standby mode,no running program, no new today plugins
i just charged it again 1 hour ago and now it is down to 90% already without any usage....
there's no problem with my 838pro yesterday,then suddenly after i charged it this morning it suddenly draining very quickly 100% at 9.30 am and down to 10% at 3.00pm (without any usage) after that i charged it again and it already down to 90% in 1 hour without any usage, bt off wifi off. i didn't install any new program or any plugin.it makes me so confuse and desperate my phone just 1,5 months old and already got defective battery??
pls some one help me
thanks a lot.
is bluetooth and or wifi on ?
nope. bluetooth is off wifi is off. usually with bluetooth on i get around 2-3 days of battery life until this morning.
soft reset to make sure there arent any dying apps running at the background.
i already did the soft reset at 90% and now it already down to 80%.i just see it a few hours again,will it remain 80% or will be down again....
so desperate
70% already.. without any usage,no running programs,bt off,wifi off.don't know what happend
is there any recommendation where i can get extended battery?i already give up.don't know what happend.last thing i'll try is to recover with spb back up.
already tried to hard reset.but doesn't effect anything,the battery keep draining very fast.so i guess this is a hardware problem.any help guys??
thanks a lot.
Is your Infrared on? Have you installed or activated a email program to check often for your email or a push email program? Or have you installed a app to update or check weather/news? Or any other proggy that needs communications to update? Soft resetting with a program set to communicate will not turn it off. Also, do you have a low signal strength as opposed to before? Have you changed the band setting under the phone options? Or are you using a different service(3G and not GSM) now that you weren't using before? Has syncing options been changed to wireless? Don't know if any of these helped. Just some of the things I've seen others do and become surprised at the battery usage.
willajabir said:
Is your Infrared on? Have you installed or activated a email program to check often for your email or a push email program? Or have you installed a app to update or check weather/news? Or any other proggy that needs communications to update? Soft resetting with a program set to communicate will not turn it off. Also, do you have a low signal strength as opposed to before? Have you changed the band setting under the phone options? Or are you using a different service(3G and not GSM) now that you weren't using before? Has syncing options been changed to wireless? Don't know if any of these helped. Just some of the things I've seen others do and become surprised at the battery usage.
Click to expand...
Click to collapse
nope i don't run any application above.i'm using 3G service since the first day i bought it and it doesn't effect the battery life.i just sent it the 838pro back to the distributor this afternoon waiting for their explanation and hopefully will solve my problem cause i think it's a hardware problem cause i already done hard reset and still the battery keep draining
YEAH my battery has been drainging faster too
noticed wifi on = fast drain.
Turned it off, it's not draining as fast, but still faster then yesturday
the only difference was, yesturday was tmobile default rom. today is auk3.3 one
Does Edge Drain Faster Then Gsps?
Try this
I had the same problem. (actually do again and won't fix this time - my original and extended but they're both pretty old). But I was able to fix it before by running battery totally dead. keep soft resetting til doesn't come on and try soft reset a few more times. Make sure battery completely dead and its 'charge memory' erased. then let it fully charge. Was recommended to me and it worked at one time. If your battery is new like you sa it might work.
thanks a lot for the suggestions... i got a replacement battery from the distributors... thanks GOD...
thanks a lot for the suggestions... i got a replacement battery from the distributors... thanks GOD...
Leaving my OP in place, but I have rewritten the description with much more detail and pics here
http://forum.xda-developers.com/showthread.php?p=25401417#post25401417
I suggest skipping to there.
I am looking for general tips here. E.g., not asking you to diagnose my specific problem so much as give me ideas of what else to check or try.
Lately I have had unexplained (to me) battery drain. Yesterday I lost about 25 percent in an hour while the phone idled. It is not a constant thing, though. I can go an hour and loose 1 percent then loose massive amounts in the next hour.
Now, i have searched, but I have not found anything that applies to me.
I have:
Tried a different radio
Tried a different kernel
Reflashed my rom
Phone is entering deep sleep according to cpu spy
There are no unusual or excessive wake locks according to better battery stats
No apps are using a lot of battery.
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Ideas?
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Zepius said:
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Click to expand...
Click to collapse
beren28 said:
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Click to expand...
Click to collapse
So I don't think I can blame it on that.
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
can you give us screen shots of battery stats?
Herman76 said:
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I do, and on reflection it is a possible culprit since I added it recently.
Didn't occur to me since it was producing no wakelocks and the battery stats did not showing as using much battery.
I shall turn it off for a bit and see if that helps. (unless there is some other way to test if it is the problem first.) I am off to the search button!
Zepius said:
can you give us screen shots of battery stats?
Click to expand...
Click to collapse
This is from yesterday when i set it down unused for about 90 minutes. The amount of wakes seems liek a lot, but it is similar to what i see when i have far far less drain, so I don't think that is the problem. I didn't get the app list screen, but out should screen as the only major drain with about 2 minutes.
I know it is shows poor signal strength, so immediately after that shot I put it in airplane mode, turned of sync, and rebooted. The battery continued to drain and graph had the exact same slope under those conditions. (Forget to get a pic though.)
Sent from my jitterbug using tapatalk.
System panel paid version with monitoring enabled is the best for tracking apps using CPU.
OK, still working on this.
To recap:
When the screen is off, and no apps are running I sometimes get inexplicable battery drain. This is occurring under conditions when I should be experiencing little or no drain at all. I say this becuase:
The screen is of and no bakground apps are running
the phone is NOT awake and IS entering deep sleep (as confirmed by cpuspy)
there are no unusual kernel or partial wake locks
there are no apps listed as using unexpected ammounts of battery
This is not a universal problem. The phone *often* behaves as expected. I can leave the phone off for an hour and see a 1% or 2% drain, and I am happy with that. However, sometimes, randomly, it goes nuts on my.
This graph from a few weeks ago shows what I mean. Look in the green box. The phone is sleeping, and the screen is off. The graph starts as a flatline, then, all of a sudden, it begins to drop precipitously.
Here is a graph that shows the battery dropping at the same rate whether the phone is awake or sleeping:
I have gone the following to try and narrow the problem down:
Done a completely fresh install of my Rom including a system wipe.
Tried two kernels (the aokp default and several relases of Franco's
Tried a different radio
Activated and installed a new sim card
I have come to suspect that the problem is network related. When the problem starts, sometimes going into airplane mode and back and/or toggling 2g only temporarily fixes the problem.
I suspect that something is happening with my connection to T-Mobile that keeps the network running and draining power. This is pure speculation, but it is all I can think of.
I installed juice defender (which I had not been previously running) and noticed the that, sometimes, it didn't turn of data when it should have. I also noticed the following two things happen:
I do not believe it is a rom problem, since if so, someone else would be reporting this. It might be an app problem, but if so the app is draining battery without a wake lock and while the phone is in deep sleep.
It is not exchange (as was suggested in this thread) since it continues when I ev my exchange account.
I have no idea what else to do or try.
Since it happens at random and takes a while to identify, uninstalling one app at a time to test for that could easily take months to narrow down a misbehaving app.
I know it is not a hardware issue since last month I got this:
That was with AOKP and Franco (earlier versions obviously)
I have google searched till my fingers bleed.
I am a long way form being an expert, and I suspect I may have overlooked something obvious.
Please, any thoughts??
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
derekwilkinson said:
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
Click to expand...
Click to collapse
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Here is that chart for last night.
I had about 1 hour and 30 minutes screen on time with 65% left when I went to bed. When I woke up, phone was dead.
RogerPodacter said:
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
Click to expand...
Click to collapse
Mine often does that. But sometimes it doesn't. It is the fact that it happens seemingly at random that makes it so annoying and hard to track down.
I would replace the battery
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
arw01 said:
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
Click to expand...
Click to collapse
The thought has occurred to me, but unfortunately, no, I don't have a friend I can swap with. And really, since I have had the phone less than 3 months, the battery *shouldn't* be bad, but yeah, defective products happen.
If I cannot find any other cause I will likely order a new battery and see if that fixes it.
beren28 said:
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Click to expand...
Click to collapse
1. yes battery calibration does make a difference.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"? Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
derekwilkinson said:
1. yes battery calibration does make a difference.
Click to expand...
Click to collapse
You are incorrect. But, in any case, I DID calibrate the battery just to cover bases in the case that I was wrong.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"?
Click to expand...
Click to collapse
We'll of course it can. That is kinda my point. If I go one app at a time waiting for it to "run a process at random" I am talking literally MONTHS of testing. I would have to wait many hours, if not days after installing or uninstalling an app to be sure whether or not it made a difference, then move on the the next. This is simply not an option. I started this thread in hopes that a realistic and doable solution might exist that I was unaware of.
Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
Click to expand...
Click to collapse
I am asking because there may be a solution that I am unaware of that doesn't require me to put my entire life on hold for months. It is possible that there is no such solution, but I asked in case there was one.
Sorry to have put you out so much.
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
skadebo said:
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
when i did a complete quote and re flash i did not setup the exchange account, but the issue continued.
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
Click to expand...
Click to collapse
I'll check that out. Thanks.
Sent from my jitterbug using tapatalk.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
My battery also drains at a rate similar to yours however I'm on the CDMA version. Hopefully you can figure out what's going on with yours.
Hello,
I’m looking for help with a rather strange problem. I’m getting a lot of awake time in Android OS. I installed BetterBatteryStats and noticed it was the service BTLowPower that was doing a lot of kernel wakelocks.
I turned bluetooth off a couple of days (and have rebooted in the meantime even) but still the top service in kernel wakelocks is BTLowPower by a very large margin ... how can this be if bluetooth is turned off ?
Stats are in BetterBatteryStats Kernel Wakelocks
Unplugged 12h47min.
BTLowPower 9h33min, 74.7%
I've attached a screenshot
I have a Galaxy Nexus which is running stock Jellybean.
Thanks in advance for any advice !
Same here.
Please help.
My battery drains out because of this in 12h and 1.5h of screentime
Sent from my Galaxy Nexus
bat0nas said:
Same here.
Please help.
My battery drains out because of this in 12h and 1.5h of screentime
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Do you guys have other Bluetooth devices around? I have a Motorola S805 headset as well as a cheapo BT2.0 dongle from DealExtreme.
I typically don't have the headset turned on unless it's connected to the computer, but what I'm finding is that if I just leave my phone with the dongle turned off and the headset turned off then I don't get the BTLowPower battery drain.
If I turn the dongle on, and turn on the headset then I typically get the BTLowPower battery drain in my GNex. I have to reboot the phone for it to go away. I'm not really sure the exact sequence of events to cause the drain to occur, but I feel like it's definitely related to turning on and off my S805 headset or being around the dongle.
There might be other bluetooth devices around (such as phones of a colleague or something), however the bluetooth on my phone is turned OFF and I still keep getting the BTLowPower in kernel wakelocks Today for example it kept my phone awake for over 10 hours
Anyone ? I keep having this problem ...
Same problem here. BTLowPower keeps draining my battery.
I have bluetooth and Jabra headset off...
It usually happends when I unplug my GNex from charging.
Please help....
-----------
sorry for my bad english.
Same issue
I'm running a Toro Gnex with the Vanir AOSP ROM. It's buttery smooth, and I've had no problems at all, other than this specific kernel wakelock. Same scenario as the OP.
If anyone finds out more about it, I would be grateful!
Airplane Mode
NicholasFarseer said:
I'm running a Toro Gnex with the Vanir AOSP ROM. It's buttery smooth, and I've had no problems at all, other than this specific kernel wakelock. Same scenario as the OP.
If anyone finds out more about it, I would be grateful!
Click to expand...
Click to collapse
I've been reading about this all morning. I run Automateit Pro and have it go into airplane mode at night. After losing 25% battery overnight, the investigation began. BTlowpower was keeping the phone awake. It looks like airplane mode can be the culprit, possibly in combination with Wifi set to always on. I am set up to turn Bluetooth off a couple of minutes after going into airplane model tonight, I'll follow up with my findings over the weekend.
bigknowz said:
I've been reading about this all morning. I run Automateit Pro and have it go into airplane mode at night. After losing 25% battery overnight, the investigation began. BTlowpower was keeping the phone awake. It looks like airplane mode can be the culprit, possibly in combination with Wifi set to always on. I am set up to turn Bluetooth off a couple of minutes after going into airplane model tonight, I'll follow up with my findings over the weekend.
Click to expand...
Click to collapse
Great, keep us posted. I also turn airplane mode on at night, but my Bluetooth is always off.
Did anyone try to hard reset their phone ? I called Samsung but I got the standard reply to hard reset my phone, I haven't tried it yet because I doubt it would work and I have a lot of authenticators on it and it's a bit of a hassle. But if any of you guys already tried it I would love to hear if it worked ! Thanks !
BTlowpower solved
Darthy1980 said:
Great, keep us posted. I also turn airplane mode on at night, but my Bluetooth is always off.
Did anyone try to hard reset their phone ? I called Samsung but I got the standard reply to hard reset my phone, I haven't tried it yet because I doubt it would work and I have a lot of authenticators on it and it's a bit of a hassle. But if any of you guys already tried it I would love to hear if it worked ! Thanks !
Click to expand...
Click to collapse
BTlowpower issue solved by turning Bluetooth on and then off again after Airplane mode activated. However, that caused another issue - modem_usb_gpio_wake to crush my battery. Doing more testing today to resolve that one - will post again when that one is solved.
BTlowpower and modem_usb_gpio_wake resolution
bigknowz said:
BTlowpower issue solved by turning Bluetooth on and then off again after Airplane mode activated. However, that caused another issue - modem usb gpio wake to crush my battery. Doing more testing today to resolve that one - will post again when that one is solved.
Click to expand...
Click to collapse
After testing different configurations this weekend, it looks like turning off sync causes these 2 kernel wakelocks. I tested 2 states: Airplane mode + no Wi-fi, and no data (no Wi-fi + no Wireless data, voice signal on). In either instance, the wakelock occurs with sync off. Leaving sync on finally achieved the low overnight battery drain (< 5%) I've been looking for. Regardless, to avoid battery drain after shutting data off:
Turn Bluetooth On and then Off again. If you are using airplane mode (this may be overkill), also turn Wireless Data On and then Off again.
Let me know if this helps.
bigknowz said:
After testing different configurations this weekend, it looks like turning off sync causes these 2 kernel wakelocks. I tested 2 states: Airplane mode + no Wi-fi, and no data (no Wi-fi + no Wireless data, voice signal on). In either instance, the wakelock occurs with sync off. Leaving sync on finally achieved the low overnight battery drain (< 5%) I've been looking for. Regardless, to avoid battery drain after shutting data off:
Turn Bluetooth On and then Off again. If you are using airplane mode (this may be overkill), also turn Wireless Data On and then Off again.
Let me know if this helps.
Click to expand...
Click to collapse
Hi thanks for posting !
Just to make sure I understand, you say the solution is to turn bluetooth on and off again after turning off airplane mode ?
Just for completeness sake, this is my situation: overnight I turn on airplane mode and I sometimes have the wakelock draining my battery during the day (but not always). Draining doesn't occur during the night as while it's on airplane mode I'm also charging it.
I will try every morning when I turn airplane mode off to turn bluetooth on and off again afterwards for a few days and see if that helps. Let me know if I misunderstood.
Thanks,
Jorn
Just found a kind of workaround at another thread, this might be helpful (if it works ).
It doesn't, the drain still occurs >_<
gwindlord said:
Just found a kind of workaround at another thread, this might be helpful (if it works ).
It doesn't, the drain still occurs >_<
Click to expand...
Click to collapse
I actually have a workaround that works for me. During the night I turn off my phone instead of using airplane mode. I no longer have BTLowPower and I also am able to successfully connect every time very quickly with bluetooth to my carkit, which previously was very flaky. It's definitely a standard issue though with the galaxy nexus, I can reproduce it on 2 other galaxy nexi as well.
I just installed BetterBatteryStats two days ago, and I'm seeing the exact same results. I can't help but wonder if the issue is at all related to the kernel I'm using (LeanKernel v4.7), or if perhaps a resolution to the problem could be solved by a modification within the kernel code. The ROM I'm running is BAMF Paradigm v2.4, which is based on AOSP v4.1.2. Like the rest of you, I'd really like to get this fixed.
trestevenson said:
I just installed BetterBatteryStats two days ago, and I'm seeing the exact same results. I can't help but wonder if the issue is at all related to the kernel I'm using (LeanKernel v4.7), or if perhaps a resolution to the problem could be solved by a modification within the kernel code. The ROM I'm running is BAMF Paradigm v2.4, which is based on AOSP v4.1.2. Like the rest of you, I'd really like to get this fixed.
Click to expand...
Click to collapse
Anyone have any updates on this? My GNex just started doing this randomly after being stable for a long time.
the7thson said:
Anyone have any updates on this? My GNex just started doing this randomly after being stable for a long time.
Click to expand...
Click to collapse
After three days or so, the issue seemed to go away on its own. I didn't make any changes to any of the apps I was running, nor did I update the kernel. I really have no clue what took care of it for me, but I haven't seen it since.
trestevenson said:
After three days or so, the issue seemed to go away on its own. I didn't make any changes to any of the apps I was running, nor did I update the kernel. I really have no clue what took care of it for me, but I haven't seen it since.
Click to expand...
Click to collapse
Weird, mine went away as well after toggling BT a couple times. Guess we'll file this one under unsolved mysteries
I have a problem with wifi. In battery stats wifi has more consumption as screen.
I never seen it on any other android smartphone in my house.
Somebody with this behavior? I am using latest stock.
Check Location>Wifi Scanning
any other idea
thx, i disable scanning in location, reboot, after week still wifi 1st in battery consumption, it's not big problem, battery life on this phone is excellent, but can be better
It's a wrong report from Android, your WiFi is not draining your battery (a few of us have the same problem, me included). I don't know where it comes from but you can just ignore it (there's no real way to fix the issue I'm afraid)
Mine was doing the same - and I use Chrome a lot for web surfing
Disable Location permissions in Chrome (Settings->Apps->Chrome->Permissions->Location Off)
ok, i just ignoring it, not big deal, battery life is fine, i just was wondering if can be even better everybody know android is quite tricky
Some screenshots would be great, so people can help.
That's the kind of problem he is having, which is just a bug from Android ?
DadOudidOuda said:
That's the kind of problem he is having, which is just a bug from Android ?
Click to expand...
Click to collapse
Can you also post how much mah does that use(by clicking on WiFi). And also the battery map clicked.
Thanks
bharatshaan said:
Can you also post how much mah does that use(by clicking on WiFi). And also the battery map clicked.
Thanks
Click to expand...
Click to collapse
Here you go
DadOudidOuda said:
Here you go
Click to expand...
Click to collapse
I hope you have your WiFi scanning and WiFi network notification off.
I faced same problem in the starting.
I switched above settings off and cleared cache and then switched off WiFi and restated phone.
Now it is gone. Hope it helps.
bharatshaan said:
I hope you have your WiFi scanning and WiFi network notification off.
I faced same problem in the starting.
I switched above settings off and cleared cache and then switched off WiFi and restated phone.
Now it is gone. Hope it helps.
Click to expand...
Click to collapse
Everything has been off for a while, the "problem" appeared afterwards but I personally don't mind, I know that's just a bug
DadOudidOuda said:
Everything has been off for a while, the "problem" appeared afterwards but I personally don't mind, I know that's just a bug
Click to expand...
Click to collapse
Are you guys only seeing this reporting when wifi is on but not connected? Or all the time?
Only had the device 2 days, but no sign of it for me - wifi on, background scanning and network notification also on. Only been out of wifi coverage for a few hours though.
dandrumheller said:
Are you guys only seeing this reporting when wifi is on but not connected? Or all the time?
Only had the device 2 days, but no sign of it for me - wifi on, background scanning and network notification also on. Only been out of wifi coverage for a few hours though.
Click to expand...
Click to collapse
It's when the WiFi is on (connected or not).
OK, some say it's a bug, others say it's no biggie since the large battery, but.... I used to get home after a 12 hr days work, and have 4-5 hrs sot and still 20-30% left. Now I need to keep the phone charged, because it's down to 10 % halfway... That IS a BIGGIE.... And for those who say it's just a stats thingie, well, if this thingie shows 0%: your phone WILL shut down!
Ive tried ALL tips, NOTHING works. Period. What bugs me most is that I don't know why! I turned off scanning, cleared cache, reboot, etc, heck, I even did multiple factory resets, NO GO on any of those!
Believe me I'm happy for those that have solved the issue, but this should have never happened.
After consulting Motorola's customer services I was advised to send it back for repair, and so I did. I need to get it back still, but if this really is a bug, than:
SHAME ON YOU MOTOROLA/LENOVO.
You need to fix this asap, because it really IS a BIGGIE!
Even when it was disabled all the time.
you have to disable location scanning for bluetooth and wifi. I've had the same issue. I also dont use high accuracy location. I use device only to save battery and prevent wifi from turning on. It drains crap ton of battery.
Yea! I had also disabled it and made one thread for this so let other knows the solution.
SOLUTION FOR THE PROBLEM
https://forum.xda-developers.com/moto-z-play/how-to/guide-prevent-wifi-draining-battery-t3612123
Hi there,
I recently updated my Pixel C to Android 8.1 via ADB with the OTA Image and I'm facing a huge battery drain on wi-fi. I already wiped the Cache via recovery, without any effect.
What I'm missing is the Option to Keep Wi-Fi activated only when charged ("Keep WiFi on in Standby")? Did Google change something here?
Any suggestions?
bigtereiber
I just started experiencing the same thing. Oddly, it will be fine when I first take it off the charger. The drain will be insignificant for many hours. Then, I use it for a while and put it back to sleep. After that it will drain like 60% over 8 hours. I can't figure it out. GSAM doesn't show any apps keeping the tablet awake. It also shows that the tablet was in deep doze the entire time it was draining. Weird.
Quick question. Do you have the official keyboard accessory? Just a hunch here, but I decided to not have the keyboard attached to my tablet for the last day or so, and so far, no battery drain. I wonder if the tablet just isn't cutting off the flow of power.
tim.malone said:
Quick question. Do you have the official keyboard accessory? Just a hunch here, but I decided to not have the keyboard attached to my tablet for the last day or so, and so far, no battery drain. I wonder if the tablet just isn't cutting off the flow of power.
Click to expand...
Click to collapse
I've been experiencing the same battery drain, initially intermittent but now more regular, and also suspected the keyboard. At first it only seemed to happen if I had the keyboard attached for use, i.e. tablet 'up', but now it's doing it with the keyboard shut against the tablet too.
Will try leaving the keyboard completely unattached and see how I get on. Really annoying as the battery life has always been so good and now I've got no idea whether I'll be able to use the tablet when I pick it up!
I went without the keyboard for two days. No drain. I am now back on the keyboard and all has been fine for two days now. Knock on wood.
abou27 said:
I've been experiencing the same battery drain, initially intermittent but now more regular, and also suspected the keyboard. At first it only seemed to happen if I had the keyboard attached for use, i.e. tablet 'up', but now it's doing it with the keyboard shut against the tablet too.
Will try leaving the keyboard completely unattached and see how I get on. Really annoying as the battery life has always been so good and now I've got no idea whether I'll be able to use the tablet when I pick it up!
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bigtreiber said:
Hi there,
I recently updated my Pixel C to Android 8.1 via ADB with the OTA Image and I'm facing a huge battery drain on wi-fi. I already wiped the Cache via recovery, without any effect.
What I'm missing is the Option to Keep Wi-Fi activated only when charged ("Keep WiFi on in Standby")? Did Google change something here?
Any suggestions?
bigtereiber
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I had a similar issue which took forever for me to figure out. Im rooted and was using Magisk (16.3). I switched to SU and problem solved.