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The Inogen One G3 8 Cell Rechargeable Battery is one of the key features to Inogen One Oxygen Concentrator portability. The Inogen One G3 8 Cell Battery can hold up to 4.5 hours at a flow setting of 2 on a full charge. (Higher flow settings will reduce overall battery time.) The battery can be fully recharged in 3 hours, while the Inogen G3 is connected to an AC or DC power supply.

*BATTERY DURATION*

Setting of 1: 6 hours 30 minutes 
Setting of 2: 5 hours
Setting of 3: 3 hours 30 minutes 
Setting of 4: 2 hours 30 minutes 
Setting of 5: 1 hour 50 minutes 
Setting of 6: 1 hour