I just got a Galaxy S II which I upgraded to ICS.
I really struggle with the battery life.
I have been looking around a lot on the forums explaining how to save my precious battery.
I have done quite a lot of testing, disabled all energy consuming widgets ... still I cannot get 10 hours of battery life (best case scenario without using the phone at all).
I have pushed the testing further by disabling WiFi, 3G and even switching to flight mode to reduce the consumption. I have also killed all apps (except Battery Monitor).
I haven't touched the phone for 4 hours (leaving it in sleep mode). During these 4 hours the phone has drained 40% of battery. The battery app didn't show anything suspicious.
When I do use the phone normaly (phone call, text, a bit of WiFi) the consumption is obviously a bit higher.
I am not quite sure what should be my next step:
- factory reset ?
- uninstall every single app to find out if one of them is faulty
- Change the battery