Post Reply

Battery Drain during idle time

OP Quickfire

24th June 2014, 04:10 PM   |  #1  
OP Member
Thanks Meter: 6
 
46 posts
Join Date:Joined: Jan 2014
This problem only appeared for me when I upgraded to 4.4.3. 4.4.4 didn;t solve it too. I'm on stock ROM, rooted.

Basically instead of draining 2-3% over 8 hours of sleep time at overnight, it would drain about 16%. There are no wakelocks, and the battery monitor on Android doesn't reveal much... maybe Android System is draining more than usual but I can't be sure, and everything else looks normal. I really can't pinpoint the root of this.

What I do know is this - if I reboot the phone the problems goes away, for one or two days. And then for no apparent reason the phantom drain comes back. Only solution to it is to reboot every now and then. Very annoying. Anyone else has encountered this?
24th June 2014, 04:32 PM   |  #2  
Senior Member
Thanks Meter: 1,083
 
2,866 posts
Join Date:Joined: Mar 2011
More
you gave us no screenshots, logs or anything.

how can we help you determine the issue if you give us nothing?
The Following User Says Thank You to Zepius For This Useful Post: [ View ]
28th June 2014, 01:14 AM   |  #3  
OP Member
Thanks Meter: 6
 
46 posts
Join Date:Joined: Jan 2014
Quote:
Originally Posted by Zepius

you gave us no screenshots, logs or anything.

how can we help you determine the issue if you give us nothing?

Sorry about that. I'm attaching a few screenshots that hopefully give you a better idea of what's happening. Ignore the media player drain as that's just my Poweramp. As you can see it seems like all the Android processes (idle time, Android System, Mobile Standby) are just a bit higher for the high drain screenshot. They probably add up and result in a much higher overall drain.

Once I restart the phone the drain becomes normal again, but after one or two days the problem just inexplicably comes back.

high drain:



normal drain:



Sent from my Nexus 5 using Tapatalk
30th June 2014, 02:44 PM   |  #4  
OP Member
Thanks Meter: 6
 
46 posts
Join Date:Joined: Jan 2014
Anyone?

Sent from my Nexus 5 using Tapatalk
30th June 2014, 03:08 PM   |  #5  
chaco81's Avatar
Senior Member
Flag OH
Thanks Meter: 28
 
150 posts
Join Date:Joined: Sep 2010
Donate to Me
More
i have found Wakelock Detector to be great tool for me to see what uses batt when this happens to me

download it and run it for a day or two and see what is causing the cpu wake ups
30th June 2014, 08:54 PM   |  #6  
Recognized Contributor
Thanks Meter: 1,259
 
3,156 posts
Join Date:Joined: Aug 2012
More
Quote:
Originally Posted by Quickfire

Anyone?

Sent from my Nexus 5 using Tapatalk

I don't see any wifi activity, but delete these directories anyway:

/data/misc/wifi
/data/misc/dhcp

Reboot.
1st July 2014, 02:18 PM   |  #7  
OP Member
Thanks Meter: 6
 
46 posts
Join Date:Joined: Jan 2014
Quote:
Originally Posted by chaco81

i have found Wakelock Detector to be great tool for me to see what uses batt when this happens to me

download it and run it for a day or two and see what is causing the cpu wake ups

I have it and better battery stats, both show no significant wake locks. In fact its awake for about 2-4% only.
Quote:
Originally Posted by Aerowinder

I don't see any wifi activity, but delete these directories anyway:

/data/misc/wifi
/data/misc/dhcp

Reboot.

I don't have WiFi turned on. It's all on data...

Sent from my Nexus 5 using Tapatalk
1st July 2014, 07:12 PM   |  #8  
Senior Member
Thanks Meter: 119
 
452 posts
Join Date:Joined: Mar 2011
I am having the same issue periodically. And the ONLY solution to fix it (temporary) is to reboot. As far as I remember it was happened to me on 4.4.2, 4.4.3 and now on 4.4.4.

BBS shows nothing major. There are no rouge processes in memory (checked in terminal), CPU deep sleep is fine (another fact saying that this cannot be a wake-lock). LTE/GSM signal is good and consistent (same place all the time). I have tried an airplane mode when drain has started but it does not matter.

If drain has started - phone would loose about 20% overnight (8-9 hours) when completely idle. Normally it should be 2-3%.

So, the source of such high drain is more likely somewhere in hardware/drivers etc.
I cannot determine which part of the hardware is draining current - baseband processor, digitizer, busmux, DAC or else...

PS: so much for all that google gimmicks about battery life improvement in every new Android OS.

Speaking of which I find out that Google Services in 4.4.4 are always trying to connect to "mother ship" even if Data Connection is turned down.

Some google developer explained algorithm they use for framework communications like this: if connection is failed then double wait time and repeat until it reached max wait time around 30min.

Well, last night (7 hours), with data connection explicitly turned off through Android Settings UI, Google Framework attempted to report to "central office" 246 times! - max wait time was about 1 minute and half.

Clearly, developers of framework know nothing about Android Settings API and continue "pinging" - well, but this is another problem.
The Following 2 Users Say Thank You to Vlad_z For This Useful Post: [ View ]
1st July 2014, 09:35 PM   |  #9  
KJ's Avatar
XDA: ASSIST
Recognized Contributor
Flag The boonies - southwest Ontario
Thanks Meter: 4,071
 
10,113 posts
Join Date:Joined: May 2011
More
100 cookies says its simply your poor signal.

Turn data off, not airplane mode, just data for awhile and i bet your drain is half what it is now.

Or get on WiFi.

You'll still get calls and texts with data off. During this test, toggle data on only when needed then off again.

See how that works.

---------- Post added at 04:35 PM ---------- Previous post was at 04:34 PM ----------

(This advice is for the opening poster)
The Following User Says Thank You to KJ For This Useful Post: [ View ]
2nd July 2014, 10:55 AM   |  #10  
beekay201's Avatar
Senior Member
Thanks Meter: 1,128
 
4,647 posts
Join Date:Joined: Nov 2010
More
Quote:
Originally Posted by KJ

100 cookies says its simply your poor signal.

Turn data off, not airplane mode, just data for awhile and i bet your drain is half what it is now.

Or get on WiFi.

You'll still get calls and texts with data off. During this test, toggle data on only when needed then off again.

See how that works.

---------- Post added at 04:35 PM ---------- Previous post was at 04:34 PM ----------

(This advice is for the opening poster)

^^ This.

Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Top Threads in Nexus 5 Q&A, Help & Troubleshooting by ThreadRank