One G4 8 Cell Battery
The Inogen One G4 Double Battery gives you even more time to enjoy your freedom of mobility without having to stop and recharge your Inogen One G4. With the G4 8 cell Double Battery, you can make your daily oxygen therapy use even more enjoyable and easier. With this double battery, you can get up to 4.5 hours (setting 2) of mobile use so you can take those longer trips you never could before.
Battery time varies with flow setting