A compact inflator is described herein. The inflator may include a rotatable drum, an air pump disposed within the drum, a fixed securing mechanism that provides structural support to, and enables rotation of, the drum, a power supply, and an electric power transmission mechanism. The drum may draw in and let out a hose. The hose may have a first end and a second end, the first end having a connection mechanism that connects the hose to an inflatable object. The air pump may be connected to the second end of the hose. The power supply may provide power to the motor, and may be coupled to the pump or the power supply. The power transmission mechanism may include a slip ring assembly or a pair of parallel inductors, one which rotates with the drum about the other.