Concentrator and battery not included.
About this part
A portable oxygen concentrator is only as mobile as its power options, and the car is where people spend a lot of their "away from home" time. The DC power supply lets the SimplyGo run directly from a vehicle's 12 V outlet — so on a long drive the device runs off the car rather than draining its battery, and you arrive with the battery still charged for wherever you're going next.