For the Inogen One G4.
The Inogen One G4 Double Battery gives you more time to be out and about before having to recharge your Inogen One G4. Order a new double battery today and discover how it can make your daily oxygen use easier and more enjoyable! You can even take those longer trips that you couldn’t do before, with up to 6 hours of battery life.* The Inogen One G4 Double Battery also qualifies for FREE SHIPPING. Order today! Specifications: Rechargeable Lithium-Ion Battery for Inogen One G4 Model Battery Duration: Up to 6 hours* *Battery time varies with flow setting
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