Battery lose from 40% to 0% ... that need changer to boot again

[#1]

i'm using XP for FB and chating, battery about 40%

but something my battery lose to 0%, i cant boot my phone.

then after i pluged the changer that can boot up again.

What will happen if i living out my home?

Can i fix it at service center? i'm living at Bangkok, Thailand.

[Rishu32]

Still encountering this problem please help I tried this all repaired my Xperia z1 but still not working

[Behnoosh]

I have had the same problem for a few months..It has become even worse after the latest lollipop update..it shuts down on 80%

[xperia24]

I experience the same problem with my xperia z1 compact. It started about 2 weeks ago. The battery would be at 48%, and then shuts down. I have to connect it to a charger then. Recently I noticed that the phone shuts down at higher levels of battery life. It is now up to a point where the battery is at 70% and then shuts down to 0%. Apparantly I can not go back to a previous version of Android in any legal way, and I do not trust the "jail-break" thing on the internet. Please can anyone help me? I still have until July of next year before I can do an upgrade on my contract.  Please, please,please. I am very frustrated!