Apple yesterday released Battery Update 1.2 (244kb) which "updates battery firmware and improves battery functionality" for the following Apple notebooks:
- 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)
The update requires Mac OS X 10.4.8 or later and after installation each battery you insert into your machine will be updated automatically.