Share your experience!
Why Android OS is taking 22% of my battery? What is that Android OS....what app? I can only get 3-4 hours of non-stop browsing, that 22% will be good for another half an hour? Should I reflash again the phone ?

Thank you!
Android OS is your ICS system
Its normal...
You may reflash if you wish but everything seems to be normal
May i know how many times did you install ICS ?
if only one time then go ahead for a second install as it really may change your experience 
It's the second time..but games are lagging to much and battery is draining and I don't feel like I have a 1,4 GHz processor. I don't know what is wrong .
Game lag due to less RAM...
Go for a software repair to see if it improves
I have this EXACT same problem! Android OS is one of the largest battery sucker! It's around 20-30%! My screen only uses 25%. This literally means that Android OS is literally another screen!
This is not normal! Android OS is not supposed to drain the battery so much! Something is wrong with the ICS update.