Apple released MacBook 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”. The update is available for the following MacBook models:
- 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)
You can get the update using the Software Updater or download it directly then you can follow Apple’s installation steps. Via TMO.