my S2 is used as regular phone can hold charge for 3-4 days

 

I even turned on wifi, bt(my car has bt), and gps. However, I turned off auto sync, which saves a lot of battery. Every day 2-3 phone calls, each 1-3 minutes. Other things like check weather, stock and email less than 10 minutes every day. I can charge the phone once every 3 days.