I often get only about 4 hrs usage, mostly internet, email, texting and minimal calling with 2 days standby. This seems very low. I used to get 7 hrs regularly (however only about 1 day standby as i was using it a lot during the day since it was new). I probably avg about 5 hrs usage these days (2 days standby)

I charge my phone often, recalibrate about once a month ect.

What gives? I see people posting up to 8 or 9 hrs usage and up to 3 days standby. My brightness is pretty low too.