For the past few weeks I have noticed that my macbook pro's battery life has shrunk greatly. I could usually get around 6 hours on it with no wifi or bluetooth on or about 3.5 to 4 hours with wifi. Now I am lucky to get only about 1.5 hours without wifi or anything working. I have tried updating, re-calibrating the battery last night but nothing. I have also examined the outside of the battery which has no bumps anywhere on the outside. I do not know if this has anything to do with some new updates from Apple that I might have installed, before 10.5.6 that is. My specs: MBP 15" Low end from 2007 2.2GHz Intel Core 2 Duo 2GB RAM 128MB VRAM 120GB 5400rpm HDD Model Identifier: MacBookPro3,1 (not sure if this means it is third generation MBP) Could any of have had similar problems, and if so what did you do exactly. Thanks for the help. Also of interest, using istats it says that I have only used 42 cycles on my battery and the health is 29%. The health thing is scaring me, why exactly does it say 29%, and does this low value mean a bad thing? Additional Info: I got some info from my System Profiler, the condition says to "Check Battery". I guess that would be the problem. My only problem now is that my warranty expired almost 3 months ago and I never got Applecare for my MBP.