[iBook] Was oops, now 2- or 3-prong connection?

[Angus Wallace]

-----------
The following is my opinion only - you should double-check everything I say
-----------

The Wattage is a limit, i.e. If my ibook needs a 40W powersupply, then any power
supply that can deliver that power will suit (provided it provides the correct
Voltage). so there should be no porblems using a PowerBook power supply on an
ibook.

Not sure about using the ibook supply for the powerbook. I'd ask apple about
that, because the answer depends on how 'smart' their power management hardware
is. It is possible that you could run the PowerBook from the ibook supply, or
charge its battery, but not both at the same time.. (because the ibook supply
can not deliver as much power as the powerbook supply)

(Despite my disclaimer, I wouldn't worry about plugging my ibook into a
powerbook supply, and visa versa. I think if Apple make the plugs the same,
then they're compatable - However, it's always possible that something 'bad'
_could_ happen..)

As to the third pin, that probably doesn't matter at all. It's an earth pin (I
assume - I live in Australia, and we don't have the same configuration as in
the US), and because the ibook is low power (it uses a power adapter), earthing
isn't necessary. (There are some important caveats here..). My ibook has two
plugs, one has 3 pins, and one has 2.. you shouldn't need to worry about that.

hth.
-Angus


Quoting Reid Conti <rconti at gmail.com>:

> good point.  My iBook has just 2 prongs on the cord AND on the flip
> down ones.  But the british plugs in the international kit I have,
> have 3 prongs :)
> 
> - reid
> 
> 
> On Mon, 13 Dec 2004 10:57:01 -0600, Scott Warren <sw at shelton.org> wrote:
> > A great mystery:  The 3 foot power cable that connects to the "brick"
> > is a 3 prong.  The included folding clip that connects to the "brick"
> > is a 2 prong.  Where does the extra prong go??? hmmmm....  If you look
> > at the end of the power cable, you notice there really are only 2
> > contact points... 2 prongs... so the 3rd one is on there for
> > decoration??
> > 
> > 
> > 
> > On Dec 13, 2004, at 10:20 AM, Pete Nalda wrote:
> > 
> > > My 700 mhz ibook has a 3 pronger.
> > >
> > > On Dec 11, 2004, at 3:15 PM, Nancy Lawrence wrote:
> > >
> > >> I don't know if this will help or not but I have an 800mhz G4 ibook
> > >> and it has a two prong.
> > >>
> > >> On Dec 11, 2004, at 3:28 PM, Brian Olesky wrote:
> > >>
> > >>> Don't have the answer yet, but this should be simple. If someone out
> > >>> there
> > >>> has a 600 Mhz iBook, or a new 15" AlBook, could you please tell me
> > >>> which
> > >>> Book you have and whether your power cord extension has a 2- or 3-
> > >>> prong
> > >>> connection to the wall switch? I looked at the Apple specs and they
> > >>> both
> > >>> take different power supplies, so I do need to find out which is
> > >>> which.
> > >>>
> > >>> Thanks (again),
> > >>> Brian
> > 
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> >
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