Originally Posted by dvs7310

Looks like you're out of luck with the Apple. From what I can see the Apple charger uses 85 watts which isn't going to work on newer planes with A/C plugs if they have a 70 watt limitation.
Does your macbook pro have that magnetic connection for the charger? I'm guessing that's why no one makes an aftermarket charger to fit becuase Apple has a patent on that system.
A higher wattage charger makes your battery charge faster, so that's probably why computer manufacturers keep pumping out these high wattage chargers, but at some point I hope they'll start considering the limitations people face when using them in an airplane. Modern aircraft are going away from D/C empower, I don't see it very often anymore.