Battery Update 1.2
28/04/07 | Update
Apple has released Battery Update 1.2 for the following products (basically all the MacBook and MacBook Pro models as at May 2007):
  • MacBook
  • MacBook (Late 2006)
  • MacBook Pro (15-inch)
  • MacBook Pro (15-inch Glossy)
  • MacBook Pro (15-inch Core 2 Duo)
  • MacBook Pro (17-inch)
  • MacBook Pro (17-inch Core 2 Duo)
Battery Update 1.2 may be downloaded here (244kB):
http://www.apple.com/support/downloads/batteryupdate12.html

For more information, please see here:
http://www.apple.com/au/support/macbook_macbookpro/batteryupdate/