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[Q]Heavy battery drain when on WiFi

Hello everyone, there are many, many threads for our phone, so it is basically impossible to properly search and see if this question has been asked before and so here it goes.
I've tried many roms for my device (I call it Sir Hangsalot), and I have noticed that on almost every rom there is a huge issue for my device to keep itself in a deep sleep state when the WiFi is on. The ratio is approximately 70/30% awake vs. deep sleep (I am talking when the screen is off and the phone is not being used). Then I have tested with the WiFi off (mobile data still on, it is always on since I have an unlimited data plan) and the phone enters deep sleep as usual, but this time it stays in deep sleep and battery is discharging properly. From the moment I switch on the WiFi the same behaviour emerges again. This is the last night's situation. New battery (1 month old, 1700 mAh), fully charged at 1 AM, at 7 AM 54% left with the WiFi on. The night before, same conditions, WiFi off and mobile data on, at 7 AM 91% left.
So, my question is: what the hell is wrong with our WiFi which is causing this huge battery drain and is there a fix (rom, kernel, module, script, anything)?
Regards.

didije said:
Hello everyone, there are many, many threads for our phone, so it is basically impossible to properly search and see if this question has been asked before and so here it goes.
I've tried many roms for my device (I call it Sir Hangsalot), and I have noticed that on almost every rom there is a huge issue for my device to keep itself in a deep sleep state when the WiFi is on. The ratio is approximately 70/30% awake vs. deep sleep (I am talking when the screen is off and the phone is not being used). Then I have tested with the WiFi off (mobile data still on, it is always on since I have an unlimited data plan) and the phone enters deep sleep as usual, but this time it stays in deep sleep and battery is discharging properly. From the moment I switch on the WiFi the same behaviour emerges again. This is the last night's situation. New battery (1 month old, 1700 mAh), fully charged at 1 AM, at 7 AM 54% left with the WiFi on. The night before, same conditions, WiFi off and mobile data on, at 7 AM 91% left.
So, my question is: what the hell is wrong with our WiFi which is causing this huge battery drain and is there a fix (rom, kernel, module, script, anything)?
Regards.
Click to expand...
Click to collapse
Sorry for late reply.
Go to Settings > Wifi > Advanced settings and uncheck the box "Network notification" ( Notify me when an open network is available) in wifi settings, also uncheck "Scanning always available" .
Use Greenify app to freeze apps ( apps frozen will stay closed until you open them again).
These should reduce battery draining.

Thanks for the reply. I always turn off those things in wifi advanced settings, and regarding greenify I am not sure that it will help since I have this issue in every rom, even in a barebone rom without installing any app or gapps. I thought that maybe google play services could be the culprit here, but even without gapps I have a severe battery drain when wifi is on. When using mobile data everything is just fine. I really cannot find an answer for this.

didije said:
Thanks for the reply. I always turn off those things in wifi advanced settings, and regarding greenify I am not sure that it will help since I have this issue in every rom, even in a barebone rom without installing any app or gapps. I thought that maybe google play services could be the culprit here, but even without gapps I have a severe battery drain when wifi is on. When using mobile data everything is just fine. I really cannot find an answer for this.
Click to expand...
Click to collapse
Stock jb bloated should also drain much battery when there is a network connection.
I don't have more ideas... But why you keep wifi on overnight? Do you have facebook app/ what'sapp / viber / etc. ? These drain battery alot, that's why you need to greenify them.
And why you use wifi since you have unlimited data plan?
To be honest, my battery drain too when i have wifi on, but not so much. In this evening, i will put my wifi on and i will let you know how much battery i have left tomorrow.

It will be interesting to see your results, thanks. I do indeed have WhatsApp installed (after setting up my device completely) but the behaviour is the same regardless, even after fresh install and no other than the core system apps (stock, cm 10, 11, 12, aosp, carbon, vanir, LS, tried them all). Regarding leaving wifi on all the time it is the matter of habit. Since I've been using an android phone from the start (from cupcake on Huawei U8220 to lollipop on a few devices) and I have never had this kind of problem. Oh, well, I will try to keep it off and turn it on only when I need faster internet speed (my data plan is unlimited but it does not have download speed as my wifi).
Cheers!

didije said:
It will be interesting to see your results, thanks. I do indeed have WhatsApp installed (after setting up my device completely) but the behaviour is the same regardless, even after fresh install and no other than the core system apps (stock, cm 10, 11, 12, aosp, carbon, vanir, LS, tried them all). Regarding leaving wifi on all the time it is the matter of habit. Since I've been using an android phone from the start (from cupcake on Huawei U8220 to lollipop on a few devices) and I have never had this kind of problem. Oh, well, I will try to keep it off and turn it on only when I need faster internet speed (my data plan is unlimited but it does not have download speed as my wifi).
Cheers!
Click to expand...
Click to collapse
I tested two days. Wifi drain battery 15-20% for me. Hmm, maybe i have some wakelocks, not sure. I will check and i will let you know if i can solve this problem.

Mobile Radio Active being the main reason of discharge

Hello, I bought my Oneplus 3T recently and I'm using stick ROMwith ElementalX. The main problem I found is that everytime I look at what consumed the highest percentage of my battery are things like WA, Google Play Services, etc. If I click on the to see what is happening, I always get the Mobile Radio Active working like pretty much all the time.
For example, in a normal use for me which is between 26-30 hours until I decide to charge my phone(between 10-20%), I get a SoT of 4 hours and a half more or less. The problem is that from the total percentage of battery used, these applications which have the Mobile Radio Active problem drain between 10-15% of the total amount of battery, while my screen is like 7% of that total value.
Researching on XDA, I couldn't get any solution to this problem. I call this a problem because, every day I see new photos from people with between 7-9 h of SoT in maybe 20 hours of use. Of course, you can't really call this a bad performance of my phone but I think that this difference of hours with screen on is greater than the amount of time my phone stays with my screen off.
As a consequence, I wanted to know if there is a solution or some tips to reduce that Mobile Radio Active bug in order to extend the time between charges.
Thnk you very much.
Additional information: I cleaned flash stock today + ElementalX kernel + SuperSu to see if this kind of bug dissappears.

To "solve" the Mobile Radio Active bug you must take some extreme steps:
First, Root your device. This MUST be SuperSu unfortunately, as the app I'm going to suggest doesn't allow you to toggle the required settings with Magisk or Phh.
Install LeanDroid.
In settings, allow disabling of Wifi, Cellular Data, Bluetooth, Network Location and GPS Location.
Set to "0 min" after screen off. Click "Except".
Configure this screen to your taste, but I have "Except if tethering", "Except if charging (AC). Under Wifi I have "Except if connected to <my home WIFI>" and I have "Except if active: Limit" set to 100KB/s.
Bluetooth "Except if connected"
Location "Except if GPS in use"
and "Network Mode except if original strength OK."
Go back to the main panel.
Restore "After Screen Unlocked"
"Every 60 MIN after screen off" (Configure this to your liking)
With SuperSU and the above, turning the phone screen off disables the data modem when the transfer rate is low, this effectively shuts down the radio and prevents the Mobile Radio Active bug.
Run this with tools like Greenify and ForceDoze to really pump your battery life.
It's not unusual for me to see 8 hour screen on time with these apps and the above configuration.

and without root?

Just curious, how is the status of this bug ? I followed that Bug for like 1.5Years...since Lollipop i think. I myself tryed several things in Sultans ROMs in a OnePlusOne, but no Solution so far ;-(

Bug is still active. As far as I can tell, it remains active in Oero too.
The only option if you are not rooted is to close all apps and toggle airplane mode before you switch the screen off. This only solves the issue until the next time data is accessed by any app, though

THX for reply. Jepp on Wifi i get 4-5days @3-4h SOT. On Mobile only 2 days

Dressiel said:
THX for reply. Jepp on Wifi i get 4-5days @3-4h SOT. On Mobile only 2 days
Click to expand...
Click to collapse
Obviously, it takes more power to send/receive signals to a cell tower 10 miles away, versus a WiFi router that is 20 feet away.

Also using WiFi doesn't ensure the modem is Switched off. Modem power doesn't mean data.

damiensturdy said:
Bug is still active. As far as I can tell, it remains active in Oero too.
The only option if you are not rooted is to close all apps and toggle airplane mode before you switch the screen off. This only solves the issue until the next time data is accessed by any app, though
Click to expand...
Click to collapse
This this bugs even remain active in Oreo i will never use android again.

It's existed since Lollipop and I doubt Google will fix it any time soon.

To get 7 hours of on screen time, you will of course have to sacrifice something, the laws of physics are always with us, reminding us from day to day things that can and can't be done. But hey, if you live in a cardboard box next to a cell tower should give you much better battery time without sacrificing the phone-part of your smart device. ? ?

Multiple Wifi issues.

For sometimes MI 5 battery was acting a bit weird time to time.
Clean flashing to LOS seemed to solve the battery issue, but I discovered another issue while checking up with ampere.
When wifi is on, battery drain is abnormally high. (-870 ma on average in ampere). Even in idle time, there can be 20-30% drain when the phone is virtually nothing. And in addition to that, the heating was a bit high too, with wifi on.
I tried everything I could to solve these. Tested different roms (Xiaomi.eu, LOS, RR, Paranoid), firmwares, tried wavelock blocking and all that.
Of course, I tested the battery drain on a fresh rom - and the issue persisted. So it's not some rouge 3rd party app, unless one of the Gapps is the culprit. But, of course, I even tried disabling some of the gapps like gp service and play store, just to be sure. Yes, the problem exists even with synch and location off, and those wifi scanning and other settings doesn't do anything either.
However, with wifi off, battery was quite good (-100 ma drain on average in ampere)
Recently the issue started escalating. Not only was there the abnormal high drain with wifi on, but toggling wifi crashed the device and started a reboot, after which the device connected.
The only major thing I had remaining to be done - is fastboot. I did even that. Fastbooted into official roms, older 6.0 Xiaomi.eu roms which worked fine in the past ....but the issue persisted. In fact it started to escalate further. More reboots when I try to switch on wifi. Sometimes got stuck in a reboot loop ...and so on.
Right now, wifi is not even connecting. It just stays at 'saved'. Oddly enough, enabling bluetooth and trying to reconnect seems to allow the connection to take place. The drain is still here. (The solutions in this thread: https://forum.xda-developers.com/mi-5/help/wifi-connectivity-problem-t3517777 isn't helping me either)
I don't think this is a router issue either. I did tweak router settings, channels, and all that. I rebooted it and all. No help. And, other devices are working fine with the same router. But, the most definitive evidence that it's not a router problem is that I faced the same issues when trying to connect (with wifi) to a hotspot created from a mobile network from another device.
Do you think it's the worst case scenario: a hardware malfunction?

JRC1995 said:
For sometimes MI 5 battery was acting a bit weird time to time.
Clean flashing to LOS seemed to solve the battery issue, but I discovered another issue while checking up with ampere.
When wifi is on, battery drain is abnormally high. (-870 ma on average in ampere). Even in idle time, there can be 20-30% drain when the phone is virtually nothing. And in addition to that, the heating was a bit high too, with wifi on.
I tried everything I could to solve these. Tested different roms (Xiaomi.eu, LOS, RR, Paranoid), firmwares, tried wavelock blocking and all that.
Of course, I tested the battery drain on a fresh rom - and the issue persisted. So it's not some rouge 3rd party app, unless one of the Gapps is the culprit. But, of course, I even tried disabling some of the gapps like gp service and play store, just to be sure. Yes, the problem exists even with synch and location off, and those wifi scanning and other settings doesn't do anything either.
However, with wifi off, battery was quite good (-100 ma drain on average in ampere)
Recently the issue started escalating. Not only was there the abnormal high drain with wifi on, but toggling wifi crashed the device and started a reboot, after which the device connected.
The only major thing I had remaining to be done - is fastboot. I did even that. Fastbooted into official roms, older 6.0 Xiaomi.eu roms which worked fine in the past ....but the issue persisted. In fact it started to escalate further. More reboots when I try to switch on wifi. Sometimes got stuck in a reboot loop ...and so on.
Right now, wifi is not even connecting. It just stays at 'saved'. Oddly enough, enabling bluetooth and trying to reconnect seems to allow the connection to take place. The drain is still here. (The solutions in this thread: https://forum.xda-developers.com/mi-5/help/wifi-connectivity-problem-t3517777 isn't helping me either)
I don't think this is a router issue either. I did tweak router settings, channels, and all that. I rebooted it and all. No help. And, other devices are working fine with the same router. But, the most definitive evidence that it's not a router problem is that I faced the same issues when trying to connect (with wifi) to a hotspot created from a mobile network from another device.
Do you think it's the worst case scenario: a hardware malfunction?
Click to expand...
Click to collapse
Could you provide battery apps and hardware usage stats and graph?
My prediction it caused by Google location service that try to lock location but was unable to get GPS lock, so it tried to used WIFI scanning to get location lock.
Try to disable WiFi and Bluetooth scanning option on Location - Tri dot menu on top right - scanning
Sent from my MI 5 using Tapatalk

masruri03 said:
Could you provide battery apps and hardware usage stats and graph?
My prediction it caused by Google location service that try to lock location but was unable to get GPS lock, so it tried to used WIFI scanning to get location lock.
Try to disable WiFi and Bluetooth scanning option on Location - Tri dot menu on top right - scanning
Sent from my MI 5 using Tapatalk
Click to expand...
Click to collapse
I can provide the stats later. My device has been offline (normal condition) for quite a while...so there's not much stat to share as of now. I will collect and share them later.
However, I have checked them before. There wasn't anything too interesting. The graph very vividly showed how it fell only when wifi is on...but other than that, most battery was taken by device, idle state or something like that. I didn't find anything interesting in betterbatterystats either. Other than that I did checked the frequencies with kernel auditor too. It seemed normal overall. Though once, I did notice high spike in CPU usage. IIRC, the phone was in deep sleep for most of the time too. Not sure, what the current state is, because new issues are coming up now. So I have to recheck the condition.
I always keep wifi scanning, bluetooth scanning off anyway. So that's not the issue. 'I will again check in the china rom (no gapps), this time more rigorously,....that should clear gapps out of suspicion, if they are innocent.

masruri03 said:
Could you provide battery apps and hardware usage stats and graph?
My prediction it caused by Google location service that try to lock location but was unable to get GPS lock, so it tried to used WIFI scanning to get location lock.
Try to disable WiFi and Bluetooth scanning option on Location - Tri dot menu on top right - scanning
Sent from my MI 5 using Tapatalk
Click to expand...
Click to collapse
Check the screenshot
In a freshly fastbooted MIUI global stable rom (with wifi scanning off, and wifi always on off), I got 1% battery drain (100% -> 99%) overnight (6 hours approx)
But, only in a few minutes battery went down to 91% when wifi was on.
The device was idle in both cases.
In past I have assured that it was in deep sleep. Similar rate drain in chinese rom (so no rouge Gapps), and same drain in custom roms.
The hardware usage was taken after I used the device for a while, which is why drain due to screen on is high. Anyway, even before using the device, the maximum drainage was attributed to 'idle phone' so there isn't really any interesting info. One thing to note, that the hardware battery drain states doesn't consider wifi to be the cause of high drain, however the drain is still clearly correlated with active wifi.

Huge battery drain

Hello,
I recently bought a P20 Pro, good phone, but mine has a big issue...
The battery drain 8~9% per hours screen off, it run hot in my pocket, last night i fell asleep with the phone in bed, in the morning, the phone was screen off under the sheets, it was so hot, impossible to handle with -70% battery in a ~6hours night.
I tried a factory reset this morning, but it's the same...
Idk what i can do, it's impossible to use this phone on a daily basis with a battery usage like that
The firmware is on the last update, 8.1.0.152 (C432)
Adaptive/Automatic backlight is disabled (backlight at ~70%)
Darken interfaces colors enabled
Useless/Annoying services disabled, no location history, assistants, cleanup, "phone care", nothing is enabled
Anyone with the same issue ?

the battery is drained cuz of your network
probably you might be staying in low covergae area
and for wifi pls turn off wifi scanning under setting'

Updated to EMUI9 Beta, not better, 1h15 of screen time, it looks like the idle (screen off) mode use the same battery as screen on/browsing/youtube streaming impossible to use it daily ...

Babu mani said:
the battery is drained cuz of your network
probably you might be staying in low covergae area
and for wifi pls turn off wifi scanning under setting'
Click to expand...
Click to collapse
I'm at the same place, at my office where my Nexus 6P / Galaxy S8+ had a normal battery drain, plus the antena relay is ~150m from me, i don't believe it's a cellular network issue, or it's a big hardware issue
I'll try to disable wifi scanning, but also tried for 2 hours disabling cellular data + wifi, same battery usage

Sounds like it's something wrong with your phone, bring it back and get a new.

-makz said:
Updated to EMUI9 Beta, not better, 1h15 of screen time, it looks like the idle (screen off) mode use the same battery as screen on/browsing/youtube streaming impossible to use it daily ...
Click to expand...
Click to collapse
This shouldn't be the case. Try formatting the phone

pratik_193 said:
This shouldn't be the case. Try formatting the phone
Click to expand...
Click to collapse
Already tried few times (cf first post)
Just contacted the vendor, i'll ask for a replacement

I got a replacement, now it's correct.

I have a similar issue with my Mate RS, if I turb the power saving off the phone will be dead with mild use within half a day.

Massive battery drain before and after wipe

Hi. Can someone help me with my problem?
Im facing massive battery drain even after wipe, im only getting around 3/4h SOT. In BBS, 2 alarms are weird Job.delay. And job.deadline. I have wiped my phone, installed last version of rom, after that i have restored my apps. Problem still exist. Next i have installed kirasakura kernel and then frozen every of my apps, and its still there. After night im losing around 10/20% of battery. Im attaching some screens from bbs. Thanks in advance for every help.

i'll try to help as much as i can. install servicely and look at running services. if you see something weird, stop that service.
also, i see you're using bluetooth. that thing drained my battery as bluetooth would stay turned on even when it says it's off. what you can do is turn it on and off and it should stop bluetooth service from running.
in servicely you can disable apps from running in the background. maybe some app is running full throttle even tho you thought you closed it.
another thing you can check is if xmode is running. once i had system turning on xmode on even tho i closed the app that used it.
as you're rooted, check with some kernel manager what cpu governor is turned on. maybe the system is stuck in performance mode.
lastly, you can check your battery capacity. maybe it needs calibration. that could also result in battery drain as it's not charged to the max.
also, android 10 is generaly badly optimised for our phone. it has some good features, but powerwise it's not that efficient.
if nothing works out, i'd suggest returning to latest android 9 and do battery calibration.

Thanks for answer. I have installed servicely but im not see anything suspicious. Xmode is off, governor ist in performance mode. About battery calibration, i dont need extra juice from my battery, i want to lose 1% over night, not 20%.. Probably around July/august everything was fine, my battery last for almost 3 days, now something eating it alive and i dont know what is it. Can i somehow check which app generate this "job" alarms? In BBS its "Android" only..

battery calibration isn't about extra juice, it's about system showing the right percentage. you could lose a lot of battery because it doesn't get charged to its max capacity.
there could also be a problem with the lastest update. when i was seeing a lot of battery drain, i had it because system constantly used location services. check in services if there are any location processes running. also it could be because of network. maybe your phone is constantly switching between 3g and 4g.
you can also check in the kernel manager what is your current battery draw in mAh. if its always over 300mAh, then you have a problem.
look for a wakelocks running in the background and disable and enable some to get them resetted.

Probably u have solved my problem. Even after turning off location, i still have some running services with location in name. I have blocked all of them in servicely and after night i lost 1% of battery. I will check now in later days. Thanks a lot

DarkSoul88 said:
Probably u have solved my problem. Even after turning off location, i still have some running services with location in name. I have blocked all of them i servicely and after night i lost 1% of battery. I will check now in later days. Thanks a lot
Click to expand...
Click to collapse
A reload generally solves nothing and wastes time. It's always best to find the root cause(s) and address them directly otherwise they tend to reoccur.
Viruses (never had to), boot loops (prey it works) and old loads are the only times I reload.

DarkSoul88 said:
Probably u have solved my problem. Even after turning off location, i still have some running services with location in name. I have blocked all of them in servicely and after night i lost 1% of battery. I will check now in later days. Thanks a lot
Click to expand...
Click to collapse
yeah i thought it could be that. it's also worth checking if you have "find my phone" turned on. it's somewhere in the settings. search for device admin apps. if you see any apps turned on as device administrators, turn that off. those could also drain battery

Yep, i have turned off "find my phone" now. Thanks once again. Now i have nearly 8h SoT again. I hope it will be all good now

i'd still do battery calibration if i were you. 8 hours of sot is not that much. i mean, it is if you're playing games all the time

After couple of days, problem is back. No new apps, 3 days was good, 0/1% drain in night, now its again about 15/20%. I will just sell this phone becouse i dont have any more patience...6000mah and my OP3 with half of that value can ez get about 5h sot. Aktually im getting about 3/4h sot and 3h calls. When i have bought this phone i have had about 10 h SOT and 5 h of calls in 3 days of usage. Never again gonna buy phone from asus. Thanks guys for every help

i wouldn't condemn the whole brand because of one phone model.
also try going back to android 9 and check how's the battery drain without any apps installed. then start installing your apps and monitoring if the drain will increase.
i'm currently on android 10 and there is some major problem with battery regulation. raw capacity goes below zero when the percentage is below 10 percent. no wonder the whole system starts stuttering when battery level is below 3%.