Hi Folks, I recently upgraded to a 500GB Momentus XT on the strength of the reviews. Really impressed but my battery life has dropped considerably I feel. As I'm tying here I had a full over night charge, in 20 minutes I've dropped to 89% (Wifi On) Taking the Momentus Specs (Firmware SD24): 5V start max current 1.0A Average idle power 0.8W Average operating power 1.1W Average seek power 2.2W Now the original Fuji Drive (MJA2160BH) Spin Up: 1A Read/Write: 1.4W Idle: 0.6W Standby: 0.13W All told the specs arn't that different. The idle power is slightly higher but the average "operating" / "read/write" is lower, so hence that should sort of cancel out over a battery run. The reason it bothers me is my battery life has been halved I believe. I used get 5 ish hours out of a battery, yesterday was the first day I had to charge twice in the same day. Other than that, really impressed with the drive. Boot time is fantastic. Noise is audible I have to say, you'd know the computer was on. Vibrations are more noticeable but nothing that bother me too much. Well worth the money! Anyone else notice a battery drain? ironclaw.