Abstract: A compact power adapter comprises an electric circuit, a casing and two electrically conductive AC prongs. A first portion of the casing contains the electric circuit. A second portion of the casing extends from a side of the first portion and has a generally cylindrical shape and size receivable in a car cigarette lighter. The second portion has two recesses and electrical contacts that receive electrical energy when the second portion is received in the car cigarette lighter. The AC prongs are receivable in an AC power outlet, and are rotatably coupled to the casing to rotate between a first position where the AC prongs extend from the casing approximately perpendicular to a longitudinal axis of the generally cylindrical shape of the second portion and a second position where each of the AC prongs is received in a respective one of the recesses of the second portion.

Abstract: A compact power adapter comprises an electric circuit, a casing and two electrically conductive AC prongs. A first portion of the casing contains the electric circuit. A second portion of the casing extends from a side of the first portion and has a generally cylindrical shape and size receivable in a car cigarette lighter. The second portion has two recesses and electrical contacts that receive electrical energy when the second portion is received in the car cigarette lighter. The AC prongs are receivable in an AC power outlet, and are rotatably coupled to the casing to rotate between a first position where the AC prongs extend from the casing approximately perpendicular to a longitudinal axis of the generally cylindrical shape of the second portion and a second position where each of the AC prongs is received in a respective one of the recesses of the second portion.