Experience ultimate freedom with Inogen One G4 Rechargeable Lithium Ion Batteries. Choose from the Single (4-Cell) or Double (8-Cell) Battery, compatible with all InogenOne G4 Oxygen Concentrators. 

Power up for spontaneous outings – be it a quick store run, movie night, flight, or dinner with friends. Keep multiple batteries for extended adventures, ensuring you're ready to go whenever, wherever.

Charging is effortless – let them recharge automatically in the InogenOne G4 device or use the External Battery Charger. Stay informed with four indicators for current overall charge. Embrace mobility and worry-free power with Inogen One G4 batteries.