Finally fixed the battery problem in my Galaxy Ace 2 (i8160) n share my experience
The battery life was really horrible as sometime it can only last half day even though without too much data on my phone. I have tried everything i know like turning wifi/gps off, dimming the brightness, and tried the saving mode or power saving apps without much improvement. Not long ago, I once happened to turn off the background data and auto-sync, my phone last through one whole day! I have an addictional battery from mpj which provides some extra power also make it last over one day, but with the original battery is my first!! I think probably the reason is that I am living in an area where signal not good so sync/update my phone/apps would take extremely long time.
The battery life was really horrible as sometime it can only last half day even though without too much data on my phone. I have tried everything i know like turning wifi/gps off, dimming the brightness, and tried the saving mode or power saving apps without much improvement. Not long ago, I once happened to turn off the background data and auto-sync, my phone last through one whole day! I have an addictional battery from mpj which provides some extra power also make it last over one day, but with the original battery is my first!! I think probably the reason is that I am living in an area where signal not good so sync/update my phone/apps would take extremely long time.