Product details:

The Inogen One G3 Double Battery is designed to extend the portability of the Inogen One G3 oxygen concentrator, offering up to 10 hours of additional battery life. This 16-cell rechargeable Lithium-Ion battery is specifically made for the Inogen One G3 model, ensuring users can enjoy more freedom without the need for frequent recharging. The battery's recharge time is up to 8 hours, depending on the flow setting.? Quick Release Button for Easy Removal
? Up to 8 Hours of Battery Life on a Setting 2
? Charges on the AC Power Supply, DC Power Supply, or the External Battery Charger
? Travel Friendly