Hey all, Im having some trouble with my battery. I have a 15" MBP 2.16/2gig/Core Duo for just about a year, and for the last few months I have seen my battery's health deteriorate pretty fast. I compared it with the two other MBP batteries in my family: Mine: 23% Health / 82 cycles #2: 94% health / 62 cycles. #3: 87% Health / 167 cycles Obviously there is something wrong here, but im not sure if its a problem with the computer or the battery. I usually have the computer plugged in, and when I dont, im not doing any battery-intensive operations - just web surfing and listening to music. I can only get just over an hour of usage out of my battery when it is not plugged in. I called Applecare and they had me take the battery out and unplug the computer, then hold the power button for 6 seconds. Im not sure what it was supposed to do, but it didn't help. The battery is not one of the batteries that is up for recall, so i cant return it. They suggested that I take it to an apple store and have them do diagnostics on it. Any ideas before I visit the store? Thanks in advance.