Database Info

[Q] Serious battery drain overnight?

Hey guys, I thought I was getting decent battery life until I noticed that if I charge my phone and leave it unplugged overnight, I get severe battery drain.
Last night, for instance, I went to sleep at 12am with 97% battery and woke up at 8:30am with 65%. I had WiFi on overnight because I figured LTE drained more, but my battery use screen is showing that WiFi was cut off shortly after I went to sleep. However I also have noticed other times that I lose 15-20% overnight with data completely off.
I don't think it is a rogue app or anything because I am using the same ~30 apps I have always used and I have never had a problem with any of them. I am coming off a fresh install of CleanROM 2.2, but I have noticed this issue with every build I've used since getting my HOX.
I also noticed that its saying my display is taking up nearly 50% of my battery so far on this cycle, when its only been on for a total of 30 minutes and its been off the entire night.
Are there any apps that will help me figure out what's causing the drain?

Better battery stats check xda it's free and look at partial wakelocks
Sent from my HTC One X using xda premium

Want to see bad overnight drainage?
I woke up to a dead phone and this...

Try this:
Charge to 100%
Boot to Recovery
Wipe Data
Delete Battery Stats
Reinstall CleanROM (I'd suggest upgrading to 3.0)
Restart
Run Battery down without shutting off
Recharge
After you recharge, it should be fine. If not, return to stock and try to get it exchanged because it is defective. Just hope the people at AT&T don't check the bootloader, and you should be good.

overnight battery drain and warm.
I've been experiencing the same issue.
Two nights ago I went to sleep with around 73% and woke up with 71% and last night, I went to sleep with full charge, wifi and data off, and woke up to 77%.
Is your device also exceedingly warm?
I've also noticed a few times that it will give an inaccurate charge percentage, until a restart sometimes. So for example, it will read 65% and after a restart, it will read 95%.

I saw a post somewhere about htc smartsync causing some issues. Maybe it could be the cause of this drain? Apparently it shuts off wifi and data between 1 and 7am and only turns them back on to sync at certain intervals. Also it's buggy as hell so it just f's everything up. I'll post the link to the relevant thread once I find it.
Edit: Found it http://forum.xda-developers.com/showthread.php?t=1708492

SERIOUS Battery Drain

i know there are a lot of other threads out there, but I haven't found one that talked about the problem deeper and has a fix. anyways, I'm experiencing a serious battery drain where I charge my phone up to 100, unplug it in the morning, go to school and leave it in my pocket for 2 hours, and it ends up being 70-80% and the screen on time isn't even on the battery stats because I've barely used my phone to have it show up. As im typing this on my phone, ive even lost 2%. Is anyone experiencing something similar and is there a fix for this? At 33% now, according to the battery usage, cell standby is at the top of the list with 10% and screen on time is 25 minutes . Thanks so much

Please post some screenshots of battery stats and someone may be able to help
Sent from my SM-G920V using Tapatalk

My phone is the same way. Even with the latest update that made cell standby way better where it sits at 1-3% my phone drains like crazy. It's been off the charger for 3 hours and 1 hour of screen on time and it's at 57%. They need a bigger battery in the s7.

Check to see if you have a VPN app installed, Firefox, Candy Crush (or other King app), or a weather app. Many use mdnsd that eats power. King apps send data all the time. And there may be some adware that you have that is eating power. Hope this helps...
Sent from my SM-G920V using Tapatalk

Battery Drain
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.

brw9100 said:
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.
Click to expand...
Click to collapse
I did a factory reset in recovery wiped cache twice and rebooted I have had much better battery. 20-30% higher when I leave work. I also kept WiFi calling turned off not sure if that was the drainer.

Mate P7 Bad battery drain in standby

Hi XDA,
I'm having some problem with my Huawei Mate P7,
Recently when the phone is in standby, it can drain the whole battery from 100% in a night of standby(while sleeping).
I've reset to factory hoping that would fix this, same problem. I updated to latest Lolipop thinking that would help, same problem...
When the phone is in Smart Power mode and I'm using it while on, the battery hardly drains. It's only in standby it seems to happen. Even not installing any apps except FB it dies.
It seems to be in the stats, 80% power usage is wifi/3g modules.
Any idea what could be going on here? Am I forgetting a setting? Is the battery a problem?
Thanks

Are WiFi settings are those?

ronnie72 said:
Are WiFi settings are those?
Click to expand...
Click to collapse
Yip settings the same as the screenshot Except mine is "Keep Wi-Fi on during sleep - Only when plugged in"
So I charged it to 100% yesterday and left it switched off, plugged it back in and it had lost 40%, sitting at 60% remaining...with it switched off from 100% battery.
Starting to think the battery is dying Attached pics of usage..brand new software, reset, no apps installed, running on Smart Optimization

same battery drain. Updated to 6.0 and the problem is gone.
4.4 was fine. But all 5.1 had the same battery drain issue

Terros said:
Yip settings the same as the screenshot Except mine is "Keep Wi-Fi on during sleep - Only when plugged in"
So I charged it to 100% yesterday and left it switched off, plugged it back in and it had lost 40%, sitting at 60% remaining...with it switched off from 100% battery.
Starting to think the battery is dying Attached pics of usage..brand new software, reset, no apps installed, running on Smart Optimization
Click to expand...
Click to collapse
Go to Google settings and turn off location reporting.
Sent from my HUAWEI MT7-L09 using Tapatalk

Thanks for all the assistance all, I think the battery is just going bad, it takes forever to charge, leave it charging all night sometimes and its still not full tried multiple chargers too
Can't get more than 6 hours out of it it seems tried all suggestions including upgrading to 6.0(made a difference with speed much quicker now though)
Anyone got any other suggestions??

How good is your mobile signal?
If it's trying to use 4G and searching for better signal it could chew the battery. It's much easier on battery running on 3G.

Cannot identify the cause of high battery drain.

I have a Huawei Mate 10 pro and have been using it for about 9 months.
I used to have amazing battery life with close to 8-9 hours of SOT ( and still had like 20% remaining never really went too low).
Recently I have been getting a battery drain of over 20% per night even if the phone is in doze mode.
I tried every method of finding out the battery drain and could not find it, assuming its a system bug i reset the phone but it did not fix anything.
I have wifi scanning and data always on turned off , so it disconnects mobile data and wifi if the phone is not being used.
I have just factory reset my phone and am posting screenshots of all my battery monitoring.
https://imgur.com/a/vfa4SGo
Please help me identify what is causing this battery drain.

severe battery drain again pixel xl

I came here because I have a severe battery drain issue. Sometimes I can fix the issue by rebooting the phone and then not using it. This issue has been coming and going I think since android 10 but it may have occurred in android 9. I had this issue a few months ago and the issue stopped on its own. To workaround the issue I was rebooting the phone when I noticed the severe drain and then tried to avoid using the phone.
For example I charged my phone (pixel 1 XL) before I went to sleep. I charged it to about 85% at 11pm. I took it off charge and went to sleep. At 530am I woke and checked the phone to check the time. The battery was at 15% and in power saver mode.. Usually I get 1 day usage (6am to 6pm, with streaming music to my headphones at the gym and messaging throughout the day) and get home with 65% battery. This issue has come back again now that I am traveling abroad.
I reset the phone to factory yesterday and only installed webex teams and whatsapp. The issue persisted yesterday. At lunch, we spent around half an hour eating and the phone was screen off and on the table and the phone dropped from 65% to 55%. I decided to remove webex teams and reboot the phone. The battery remained at 53% for approx 2 hours. I thought eurika, webex teams is the culprit. But unfortunately last night the same battery drain issue occurred and I had to charge the phone again at 5am.
I dont know that the issue is occurring until it is occurring.
The battery usage shows no usage by apps during this issue, and same when I show all device usage - for example I'll have say webex teams using 1% and screen using 1% but the device has dropped 60% of battery and there is no indication of where.
I dont mind to install a custom rom but I have not done any custom installs on this phone at all at this point.
Also I never used NFC until a few months ago for the banking app which I used to have. I just realised NFC was on yesterday and I've just switched it off. I just wont know if this helps until later today when the battery is dropping quickly. Although it just dropped 2% while typing this so I dont think it has helped. I just turned on data saver and battery saver and will see.
I am at a bit of a loss - has anyone else had this problem and found the culprit or a fix?
Update - battery saver and data saver does not stop the battery drain. 2% drop in 20 minutes with phone on the desk with screen off.

I decided to give up, re-install webex teams and go for breakfast; while leaving nfc off, battery saver on and data saver on. At breakfast, the battery did not drop at all. Uptime is 9 hours 50 minutes (cant remember if I rebooted before breakfast) So almost 10 hours later and I have been using the phone over wifi on occasions and a few phone calls and whatsapp. The battery level is now 55% so it appears that the issue has gone away at the moment.
It's driving me nuts as I cannot work out a trigger. It almost seems like something within the android system is doing something and it's being hidden from the systems battery usage calculation. 3rd party apps also do not show any battery drain but the battery drains. If the battery was faulty then I would expect this issue to not get fixed after reboot (or even by itself). I have reset the phone 2 or 3 times now and the issue is still present afterwards.
Tried to google for answers and didnt really find anything apart from one guy saying his phone was draining and getting hot at the same time. Mine does not get hot.
I suspected malware or something like that but I dont see how it can be possible that malware is there after factory reset.

OK I think I have made some progress - although can't be sure because this issue does go away and then comes back! However, this time I am refusing to reboot my phone so I can work on it. I am flying back tomorrow at 4am and so I need battery to last as long as possible. I have installed all of my important apps that I need to use. Given the issue is there when I have only 2 apps, the issue cannot be related to the apps I removed so I installed all of the important ones.
What I have done now:
1. turned off dark mode
2. opened the app permissions for the "google" app and changed the location permission from "always" to "only while using the app".
GPS Location is always off unless I am using google maps anyway but it did not stop battery drain previously!
As soon as I changed the permission app for point 2 above, the severe battery drain stopped. Take a look at the screenshot. You can see the severe drain on the left of the graph. Then the very severe drain was when I Was actively using the phone during the issue. Then I charged the phone. Then I changed the permission and you can see the graph have a flat horizontal line which is showing next to zero battery drain! I do not have battery saver or data saver turned on anymore. And I have been using the phone a fair amount.
Touch wood and fingers crossed. May be this will also stop google from emailing me every month with a google map breadcrumb trail of where I have been going.
EDIT - uptime of the phone is 28 hours and counting. Although you can see the charging points in the screenshot.

I have the same issue. My battery was just recently replaced too. I'm going to try the suggestions in your latter posts and see if anything improves.