My uMBP is 8 months old and has 33 cycles on the battery. Right now I am only using google chrome with 2 bars brightness and its telling me it will last for 2:17 min. Its currently at 93%. Bluetooth is off as well as the 9600m. Seems to me that it drains way too fast and charges way too slow. I did a full battery calibration last week and do them every couple months.