I know that battery load cycles has been discussed out the wahzoo, but, I'm at 980 Battery Load Cycles. Since I don't know how to take a screen capture of coconutbattery: Current Capacity: 4511 mAh Design Capacity: 5020 mAh 89% Age of Mac: 43 months Battery loadcycles: 980 I've used my Macbook pretty heavily everyday since I bought it new almost four years ago: school, some sound and pic editing. If I recall correctly, I typically have my Mac plugged in. So, I'm not totally sure what I've done to maintain the epicness of my battery, but, whatever. If you can shed some light at the lifespan of my battery, that would be awesome!