Brand

Inogen/Oxygo

G3 Double Battery Durations Setting 1 - Up to 9 Hours Setting 2 - Up to 8 Hours Setting 3 - Up to 6 Hours Setting 4 - Up to 4 Hours Setting 5 - Up to 3 Hours G3 batteries are the perfect power source for trips to the store, seeing a movie, or a dinner out with friends. For longer trips keep two batteries on hand, or use the 16-Cell Battery to make sure that you can get up and go whenever you want and wherever you want. (Fly from New York to London on one battery!) G3 batteries will charge automatically while in the G3 system (when connected to an AC or DC power supply), or using the External Battery Charger.