Originally Posted by JGR01

There are no working 110volt outlets (2 prong or 3 prong) on AA planes. you may see some but they are for vacumn cleaners and will probably be turned off during flight (and will fry your computer).

PowerPort is a cigarette style plug that is required to plug into the seat power unit.

Some adapers have cig plug to converter box then a cord goes directly to your laptop (with the little round plug-inside-plug of laptops). OR others go cig plug to adapter to 110-style plug which in turn you plug your whole power assembly into.

As JDiver says the ones that go DC to AC to your adapter may loose power. I have had one in the past that was DC directly to the computer...

But I guess I have learned long ago to relax on even short 4 hour flights and not plan to work THAT long!