Most important characteristics:

Tip: Are you going to travel by plane? Then it is recommended – or even required – to bring with you one or more extra batteries on board.

Inogen One G4 Battery (8 cell)

The Inogen One G4 doesn't have the long battery runtime of the G2 and G3. With this 8 cell battery, you can increase your mobility dramatically.

Charge and running time:

With the concentrator, you can charge one battery at a time. To charge multiple batteries, or separately from the concentrator, you can use the external battery charger.