Battery drains

[tutundziev]

Well here's my problem. After three weeks of usage the batery drops very quickly first it show 14 hours of usage/standby in the power menu using normally the phone without battery stamina mode on for a day and a half it drops only to a half a day now it only shoes 4 hours. next when i enable stamina mode the battery shows 2 days stand bay well actually it holds for a day then after another week of usage it drops to showing only 8 hours. i've done 5 repairs via SUS and the problems still shows after awhile.... Any ideas or suggestions what should i do ? 

p.s. the phone is old only 7 months bought brand new

[Uliwooly]

Settings > power management > battery > check what 's draining your battery 

it will be wise to repair your phone 

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[tutundziev]

hey thanks for the responce but i've already did the factory repair via sus 5 times and the only thing that drains the battery is the display, but i keept it on automatic power saver mode nevertheless i tried using it on bright mode even on manual mode for example 30% brightness or 50% .....

[Uliwooly]

You should post screenshots, take screenshots of

1) the whole list (Settings > power management > battery) 

2) graph 

3) tap on the top 3 items and take screenshots of each 

[tutundziev]

And this is what i get when i turn on stamina mode, but it only work like this for a week the i'm force to do another factory reset the repair via SUS and again reset

[jackxperiaP · Accepted solution]

first uninstall antivirus, task killers .. stand by time shown by stamina mode is just the stand by time (not using the device) .. 

it may gradually decreas the time and reaches 4 hours or 5 hours or what ever may be .. its jus a calculation only .. no need to do repair for this .. to reset the time go to settings>apps>all>device monitor, eco mode controller >> clear data .. then again stamina mode begin to calculate your usage from first .. 

to save battery

1. uninstall battery savers, task killers, antivirus

2. put in gsm only

3. disable access to location from settings>location service

4. charge your device 100% without break and use the device till it reaches 20% 

need to save more then root your device which does not voids the warranty http://forum.xda-developers.com/showthread.php?t=2335992 and install greenify from playstore https://play.google.com/store/apps/details?id=com.oasisfeng.greenify .. put all the background apps in greenify and it hibernates them when u lock the screen or the screen goes off !! it saves more power 

to unroot jus repair it with SUS or PCC ..

[tutundziev]

hey thanks alot i always thought of it as another software bug, thank you for clarifying that for my, btw is there any talk or i don't news about another final update for the xperia p jb for the bugs ?> 

[jackxperiaP]

bug fix update may come from sony !! and 4.1 will be our last update i guess , only the new xperia series get the 4.2 or even 4.3 update !! but still v can use all the features of 4.2 or 4.3 or even the 4.4 (kitkat) through custom roms!!  now am on moonwalker v5.5 rom which gives a complete look and feel of the xperia Z1 !!

[tunnyflow]

please i am having a similar issue but in my own case my phone shuts down once my battery meter reaches 30% sometimes once its reaches 40% downward,i used to reach 4% but not anymore and its frustrating when my phone turns off when i know i still have time on it.... my phone is just 4months old and i dont know what to do....

[_alexdon_]

Have you tried a factory settings reset,after which do not install taskkillers,antivirus,battery savers etc.?