Quick tips for keeping your battery in tip-top shape:

• For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. (This means not leaving it plugged in 100% of the time
• Fully charge and discharge your battery at least once a month.
• Have a spare battery you don’t use to often? Don’t store it with more then a %50 charge. (if you store it fully charged for an extended period of time, the battery may experience some loss of battery capacity)
• Be sure to store your notebook and battery at the proper temperature (Between 50 and 90 degrees Fahrenheit)

Looking for more info on battery management? Try Apple.com/Batteries