Help Phone shuts down at 50% battery

[roymorgan276]

Hello,

I bought my Xperia Mini 26 days ago. But I am having some major battery problems already. When the battery charge level decreases to 50% my phone automatically displays a message that the phone battery is low and shuts down. It won't even turn on unless it is chanrged.

I know the rules to save battery life, I have already done the following:

1. Turned off Wi-Fi, Bluetooth
2. Switched to 2G when at home from 3G
3. I have a very low screen brightness
4. Turned off GPS when not needed
5. Disabled the display bravia engine, animations and screen auto rotation

Still my phone shuts down at 50%. I don't know what is the problem. Can you please help?

Thanks in advance !

 

[Sam-SonyXperia]

If you have not already done so, I would advise running a software update/repair:

http://dl-www.sonyericsson.com/cws/download/1/110/61/1323075336/Update_Service_Setup-2.11.12.5.exe