Ok, So I asked this question in another thread, but I really didn't get a response. I just bought my macbook last Thursday and I am on the 10th cycle. I am only getting between 3 1/2- 4 Hours of battery time. I have already calibrated it, and all I am doing is searching the net. Nothing harsh. Other people with SR Macbook's are reporting 5 1/2-7 hours, why am I getting such little amount of time compared to them? Should I call apple? Any advice? Thanks.