Battery drop on z3

[Dariox23]

Greetings,

I have an issue with my Z3 battery display percentage.

Once my battery reaches 15%, it starts to drop 1% every minute or 2% por minute(when it normally takes 4 to 5 minutes to drop 1%) then it stops at around 7% and stands there for around 8 minutes.In addition, when i decide to charge it and reaches 98% y takes 30 minutes to reach 100%. is it normal? 

I am running 6.0 on z3 and I have had this issue since lollipop.

I tried repair on sony companion and nothing.

Any ideas? thanks

i add some captures https://goo.gl/photos/E5ArDxnpt4e8FNk68

Please help

[Uliwooly]

@Dariox23

I don't see anything wrong with your phone other than the WiFi it's on the whole time 

[Dariox23]

could it be ? do you consider 2% per minute without using anything normal because before 15% it is 1% every 5 minutes thats my concern?. and yes I see that wifi is on but I dont leave it on all the time only when a need. what may it cause these problems?

thanks 

[Uliwooly]

@Dariox23

WiFi it's on, you probably have background apps running

[Dariox23]

how can i stop these apps from running? 

[Uliwooly]

@Dariox23

You can't, if you have apps and services running in the background the only way is uninstalling them, you could download a taskiller BUT that will only stop them for a few seconds then they will relaunch, draining more battery, it's better to turn off the WiFi, or use Doze if your phone is running marshmallow or STAMINA mode if your phone is on Lollipop

[Dariox23]

All apps are optimized, and wifi is not always on. i am running 6.0

[Dariox23]

After I while I managed to stop the wifi for consuming when it is turned off. I disabled always scanning from the location settings and it was fixed. thanks a lot, but it did not solve my main problem with the battery drop.

I add screenshots before the 15% https://goo.gl/photos/aAJSs7hjngzybSz4A 

As you see from 18% to 16% took about 10 minutes to discharge with wifi and normal use

but then with 15% https://goo.gl/photos/E5ArDxnpt4e8FNk68 it is when the problem begins even with wifi and the same usage

I hope anyone can give a solution