I'm a fan anything that might extend battery life, especially now that I am using an MBP whose battery life is much inferior to that of the 14.1" iBook. Kevin and later TUAW reminded me that you can "calibrate your computer's lithium ion battery for best performance."
Here I've extratced and highlighted the relevant bits from the article they highlighted from the Apple Knowledge Base, "Calibrating your computer's battery for best performance." This is what I'll follow later this week with my MacBook Pro; it also works for the 15-inch Double-Layer SD PowerBook G4 and all MacBooks and MBPs:
Fully charge the battery until:
the power adapter plug's LED changes to green AND
the menu bar meter indicates a full charge.
Maintain for at least two hours, this fully charged state.
Keep the adapter plugged in.
You may use your computer.
Disconnect the power adapter and run off battery power.
You may use the computer.
A low battery warning dialog eventually appears.
Close all applications.
Let the mac go to sleep on its own.
Turn off the computer or allow it to sleep for at least five hours.
Connect the power adapter until the battery is fully charged again.
Posted at 12:43AM UTC by N. Sivasothi | permalink | , .