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Xperia Z - fast discharging at around 30% (4.1.2 software .253)

I've got a doubt about battery discharging in my phone. When it normally discharges from 100 to 35% everything is in normal, with similar drops every hour for ex. 2 days. But (even in standby) when battery is on app 35% I see very fast drop to 25-20% in couple mins. At the beggining I thought it is maybe broken cell in battery but I notice that around camera surface is warm, not hot. So it is probably matter of software. What drains my battery so fast and always at app 35-30%? Do you have similar issues? I made factory wipe few charging cycles ago but it did not make any changes.

Do you use any of the power management settings like stamina more or....
What apps do you have installed?
Sent from my C6603 using xda premium

Yes, I always use stamina, I switched it off just before taking picture. I use dropbox, GO backup, Network Singal Info, netmonitor, Gmail and one additional mailbox. I have Google backup - off, Hangouty - logged off, google now - off.

Well, I don't use stamina mode anymore. I too had these sudden drops when stamina mode was on.
Try switching off stamina for a couple of cycles.
If you find that there are no drops, then you have your culprit.

So you mean not use stamina at all or switch it off at around app. 50%?

Try without stamina mode.
Sent from my C6603 using xda premium

Ok, I'll give feedback in few days. Thanks.

Get root access, charge to 100%,delete battery stats(or use battery calibration app),drain battery to 0%,charge again to 100%, now see if still the same problem...
Sent from my C6603 using xda premium

I've tried once without stamina but I got visible faster discharging so now after update to 4.2.2 I am testing with stamina ON.

rtanner85 said:
Get root access, charge to 100%,delete battery stats(or use battery calibration app),drain battery to 0%,charge again to 100%, now see if still the same problem...
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Deleting battery stats does nothing. I post this every time I see someone recommend it, but I feel that the point needs driving home until people realise that it is a placebo at best.
https://plus.google.com/app/basic/stream/z13dgb0rksywh3muq222fzkqnwfgdbgrk04
Sent from my C6603 using Tapatalk 2

my opinion
Sorry, it will not improve your battery, just if you have wrong indicated battery %,it maybe solve that. I solved a problem like that.my battery went from 50% down to 18 in a cuple of min.after deleting the stats and a few charges it was O.

rtanner85 said:
Sorry, it will not improve your battery, just if you have wrong indicated battery %,it maybe solve that. I solved a problem like that.my battery went from 50% down to 18 in a cuple of min.after deleting the stats and a few charges it was O.
Click to expand...
Click to collapse
No. The batterystats.bin file has no relation to the percentage displayed in the notification bar. It is used to calculate the usage statistics displayed in the battery usage section of settings. Nothing more. The file is deleted every time the battery is fully or nearly fully charged anyway.
The G+ post I linked to was written by an Android framework engineer, so I think they know their stuff
Sent from my C6603 using Tapatalk 2

Ok,maybe i'm wrong,but somehow my problem was solved

I am sure that I hadn't wrong percentages but period of strange drain battery (when % suddenly drops) because I felt warm temperature around camera. So I suspect any strange thread/wakelock/trigger.

Problem with battery

Hi guys,i installed this ROM yesterday to my GT-S5830
http://forum.xda-developers.com/showthread.php?t=2212438
Now i have a problem with battery, this morning I charged it to maximum, and after 5 hours after getting off the charger (and about 45 minutes of effective usage (reading news and using facebook over mobile data)) battery level is 13%...
When I go into Battery stats it says that Screen uses 100% of battery ,and it's Time on is 1h 1m 6s
Brightness is set to 50%.
What could be the problem?

I'd guess that you can't go into deep sleep mode and that some kind off app is waking up your device..
Sent from my GT-S5830 using xda app-developers app

Blackbox421 said:
I'd guess that you can't go into deep sleep mode and that some kind off app is waking up your device..
Sent from my GT-S5830 using xda app-developers app
Click to expand...
Click to collapse
That came to my mind too. How can i find which app is waking it?

I have installed WakeLock Detector, and it showed that Facebook made 120 wakelocks over night, though Facebook is not even listed in Battery stats.
I have set refresh interval of facebook to 1 hour, chat is off, how do I solve this problem, my phone is almost unusable with battery like this?

guys please help me, i deleted facebook completely, but it's not problem, when I get phone off the charger and use it for few minutes, battery drops to 70%!! It should not be battery issue,as when I used it with stock ROM there until few days ago it was OK. I've done Wipe battery stats in CWM after ROM install.

Try a full wipe & flash your rom again.
Sent from my GT-S5830 using xda premium

[Q] Google App is using the most battery

Hi,
The google app is using the most battery on my phone... why is this??

Sometimes it does it to me also. Usually it's because something makes it use gps for hours. See if your gps is used when you tap the battery graph.
Rebooting usually fixes it for me.

So I just disabled the Google App nd the drain has stopped...
Shouldn't have had to disable it tho...but I don't know why it was draining so bad
Sent from my D5803 using XDA Free mobile app

Same problem here. I don't know what's causing it but it makes the phone hot and drains battery.

Google App!!!
how did you disable the google app? what exactly was disabled? location? Google Now? Google Plus?
I'm seeing the same thing. I unplugged my fully charged phone and went to bed (i.e. idle). Checked the phone in the morning and had burned through 33% of my battery in just under 11 hours with "google App" accounting for 83% of the battery usage.

15% drain overnight

Charged my phone and overnight night I got a 15% drain. I feel like that is a pretty high drain. 2% every hour at idle. Awake time shows about the same time i was sleeping. Any suggestions?
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app

I turned of Enhanced LTE (Voice over LTE) under network settings. From around 11pm to 7am I went from 100% to 97%. Give that a try. It was reported that Cell Stand-By was bugging and draining battery.

Will give it a try! Thanks!
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app

Seed 2.0 said:
I turned of Enhanced LTE (Voice over LTE) under network settings. From around 11pm to 7am I went from 100% to 97%. Give that a try. It was reported that Cell Stand-By was bugging and draining battery.
Click to expand...
Click to collapse
Sweetness it worked!:thumbup:
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app

This did not work for me but I might be seeing a different issue. The one I'm experiencing and have read elsewhere is the Cell Standby drain. Enhanced LTE is disabled yet I'm still getting this constant drain. I've even done the other suggestions: clear cache from recovery, factory reset, calibrate the battery. This was all fairly random too; there were times when Cell Standby would not show up at all and my battery drain would be normal. Wasn't there an issue on Android 5.0.x with battery drain which is why they pushed out 5.1 so quickly?

KrakaJap said:
This did not work for me but I might be seeing a different issue. The one I'm experiencing and have read elsewhere is the Cell Standby drain. Enhanced LTE is disabled yet I'm still getting this constant drain. I've even done the other suggestions: clear cache from recovery, factory reset, calibrate the battery. This was all fairly random too; there were times when Cell Standby would not show up at all and my battery drain would be normal. Wasn't there an issue on Android 5.0.x with battery drain which is why they pushed out 5.1 so quickly?
Click to expand...
Click to collapse
Yesterday, my cell standby was 1st on the battery usage listing. No issues with it today. Only thing I think I did was disable the enhanced LTE. Haven't even restarted.

The samsung push app update was suppose to improve battery consumption not sure if it will but fingers are crossed.

dligon said:
The samsung push app update was suppose to improve battery consumption not sure if it will but fingers are crossed.
Click to expand...
Click to collapse
I was hoping the same thing but apparently, for me, it is not. What's odd is that I'm still averaging about 6h sot with normal use. I don't consider 6h sot bad at all so maybe this is just "normal" now?

My secret is to disable LTE and WiFi if I'm not using the phone,and only use WiFi if Im on lunch or break from work.it sucks but my battery life is now awesome.try it out
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app

Vicious LSD said:
Charged my phone and overnight night I got a 15% drain. I feel like that is a pretty high drain. 2% every hour at idle. Awake time shows about the same time i was sleeping. Any suggestions?
Sent from my SAMSUNG-SM-G920A using XDA Free mobile app
Click to expand...
Click to collapse
Try to also delete the cache from the recovery boot menu (PWR+ VOLUME UP+ HOME BUTTON). That with the enhanced LTE turned off worked for me.

it's just the settings and the apps processed.

Android m Google play service drain

Anyone else ???
Sent from my Nexus 6 using XDA Free mobile app

Mine is at 9%.

how did you pull that off?!

first battery cycle with m, it was high, and my phone never slept. second battery cycle, and it only reached 1% battery drain, and I had 4+ hours sot at 61% battery. btw, I'm using the permissions option, and am not allowing location for any of my apps that dont need it. also, I disabled background data for google play services.