Inogen One G5 16 Cell Battery New Operating Humidity: 10% ~ 93%

Operating Humidity: 10% ~ 93% relative humidity non-condensing

Non-disposable Filters 1 every 6 months CPAP device filters can wear out or become clogged over time

portable oxygen concentrator for exercise and short trips without having to worry about charging again for 9 hours

Relax with powerful new backup for oxygen concentrators—and more

and the battery is charging

Inogen One G5 16 Cell Battery New Operating Humidity: 10% ~ 93%All battery sales are final. There are no returns on batteries. Product Features: 13 Hour Of Battery Life Charges Full In 3 Hours Quick Release Button 1 Year Warranty The Inogen One G5 Double Battery is a perfect power source to give you independence and mobility for extended vacations or trips. The rechargeable lithium ion double battery provides up to 13 hours at a flow setting of 2 when fully charged. The Double Battery is small enough to easily