no! firewire is i believe 26V (at least on desktop macs, i believe it can vary over a fairly large range) and is converted inside the firewire device to the voltages that the firewire drive etc. need, it's not a reversible process. what's confusing you is thinking that things just run off the battery. actually, a laptop and an ipod both have internal switching power supplies to get the voltages they need from what they specify as inputs, you can't just apply power to a random power output and have the power supplies magically work in reverse, it's much more complicated than that.
honest, you have to provide power in where the device wants it, only things designed to draw power from something else over firewire can be powered through a firewire port, a laptop that supplies power through that port will not accept power coming in from that port, if you are lucky it won't work, but there's a good chance of damaging the laptop, and your adapter. don't try it unless you want to let all of the expensive smoke come out of the parts (and it's very hard to get the smoke back in). fyi, i've designed power supplies and battery chargers, and equipment that ran off power supplies, it doesn't work the way you seem to think it does. karen latherstrum wrote: > > But wouldn't firewire voltage be universal? It must be 12v for everything, > right? > > The charger for the powerbook is 65watts,which would only be .54 amps, and > those cig lighters are pretty beefy. ------ -- Why are republicans afraid of the U.N. observing our elections? Do U.S. citizens deserve less than those of other countries? <http://www.informationclearinghouse.info/article6505.htm> In many states citizens still have the option of using a paper ballot, if they ask. I urge all voters to demand the right to vote on paper and create an auditable election. There is something fundamentally wrong when voting machines are designed to not provide any physical record of votes. -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
