Firewire 800 and Power Drawing

[methdxman]

I know the new ALBooks come with firewire800.. (17 inch and supposedly the new 15 inch...):

I know theoretically the firewire800 can provide up to 45 watts of power to external devices... can the powerbooks reach this maximum or do they supply less power, considering they are notebooks?

Also, a related question. There is a firewire 800 CardBus adapter, and you can plug in a DC cord (i don't know if it plugs into a wall socket? anyone know? or the powersupply of laptop???) for it to provide power. But it's only 12 watts. Would this be enough for an external hard drive? Thanks guys

 

[rainman::|:|]

Very good questions. I don't know about the second one, but i'm pretty sure Powerbooks provide full power to FW800... you just wouldn't want to use it much, because of battery drain. You can probably also get cables to "inject" power into the cable-- they make them for the iPods anyway, so FW800 versions should be out soon...

pnw