Battery drains fast

[ifpferrer]

Hi, I reseted my smartphone through settings weeks ago for several problems but the battery problem is still on.

My battery is 85% and with standby mode it has 19h, with the time this smartphone has gone worst 

I have Stamina and low battery mode swithed on.

What do you suggest?

[Uliwooly]

There's nothing wrong with your phone, the longer you use it, the more your phone will learn how you use your phone and it will give you a better aproximate on battery life

[ifpferrer]

And my device goes so slow... why? What can I do?

[Uliwooly]

You should contact your local Xperia care

http://support.sonymobile.com/global-en/contactUs/

[ifpferrer]

I contacted them but not solution, only that I had to repair the smartphone and loosing everything, this isn't a solution!

And my mobile kepps me reseting again. 

[Uliwooly]

Sorry to hear that

[spix]

The problem is sony's terrible rom. It drains battery super fast in standby and has terrible ram management.

I have seen as low as 7mb free ram on this phone and it is extremely slow and unusable, and I have almost no apps installed.

The phone is fast only after a restart, but when it is on for a couple of hours everything grinds to a halt. It is so bad it makes me never want to buy another Sony phone. I have many other phones that cost cheaper than this and they peform much better and have much longer battery life.

The only thing I like about the xperia sp is the speaker. Camera, performance, battery, screen quality are all terrible.