The Inogen One G3 8 cell battery is a great lightweight option for day to day or extended use. This battery is rated up to 5 hours *battery time varies with flow setting. The rechargeable lithium-ion battery can charge on both AC and DC power supplies.

The Inogen One G4 4 cell battery is a great lightweight option for day to day or extended use. This battery is rated up to 3 hours *battery time varies with flow setting. The rechargeable lithium-ion battery can charge on both AC and DC power supplies.

The Inogen One G4 8 cell battery is great for extended use. This battery is rated up to 5 hours *battery time varies with flow setting. The rechargeable lithium-ion battery can charge on both AC and DC power supplies.

The Inogen One G5 8 cell battery is a great lightweight option for day to day or extended use. The rechargeable lithium-ion battery can charge on both AC and DC power supplies.

Single Battery Features:
6.5 hours of Battery Life
Charges Full in 3 Hours
Quick Release Button
1 Year Warranty