How can I power my MacBook Pro during trans-Atlantic flights? What is Apple's solution for powering MacBooks on intercontinental flights?  My 85 watt power supply trips most airline seat power supplies, which are rated at only 75 watts.  What's a poor trans-Atlantic worker to do to keep his MacBook Pro charged in-flight?
You could get one of those external battery packs. Hyper makes them specifically for MBPs. This is the link for rMBP: http://www.hypershop.com/HyperJuice/2-External-Battery-for-MacBook-iPad-iPhone-USB-100Wh/