The Lifechoice External Battery Pack will provide 3+ hours of battery life on average, regardless of oxygen flow settings. Purchase additional battery units for added time away from fixed power sources.The Lifechoice batteries will recharge when it is attached to the ActivOx mobile concentrator and the concentrator is attached to a fixed AC or DC power source.

*FEATURES*
Provides 3 plus hours of battery life
Recharges in under 6 hours
Battery life gauge
Includes stylish carry case
Lightweight and small