[cmeisenzahl]

Probably old news for most of you, but here it is anyway.

I was able to get my 12" G4 iBook's battery to last quite a bit longer by dimming the screen. Common sense says of course that this will use less power. But the difference was much more dramatic than I would have predicted.

Chris

[seanc]

Turning airport off also conserves power.

[Steve]

As well as Bluetooth.

You can also use the Energy Saver preferences to change Processor Performance to Reduced.

[production_coordinator]

For those that don't know... how much of a difference are we talking about?

[cmeisenzahl]

I probably added 20% to my battery life by dimming the screen 4-5 notches.

Chris

[Eriamjh]

In the OS9 days, you could install a few apps on a ram drive and run them from there. Less disk access increased life. I don't think you can do this with OSX, though.