Abstract: Two juxtaposed retraction reels automatically and independently retract an output power plug cable and an input power cable connected to an accessory power input plug. The cables are connected to a power converter for converting electrical power to voltage and current power levels for use in lap top computers and so on. The input plug has a second Em power plug / auto-air adapter mechanically and ohmically coupled thereto for use with other power sources such as in airplanes and so on. A slider holds the plug tip to the carrying housing in the carrying mode, the retraction reel holding the other power input plug end to the housing via its cable.