About Battery Update 1.4
This update improves the ability of MacBook batteries to maintain a charge when the system is shut down and not used for an extended period of time.

For more information about this update, please visit this website: About Battery Update 1.4.

Products affected:
- MacBook (13-inch)
- MacBook (13-inch Mid 2007)
- MacBook (13-inch Late 2006)
- MacBook (13-inch Late 2007)
- MacBook (13-inch, Early 2008)
- MacBook (13-inch, Early 2009)
- MacBook (13-inch, Late 2008)