Philips Respironics has designed two battery options for the the SimplyGO mini; a Standard battery and an Extended battery. Only compatible with SimplyGo mini not the SimplyGo Travel Oxygen Concentrator . When fully charged the Standard battery can provide up to 4 1/2 hours of operation, while the Extended battery will provide up to 9 hours of operation. Before removing or inserting a battery make sure the SimpyGO mini is turned off. Both Standard and Extended batteries have a gauge located on the battery which will indicated the amount of charge. Battery options may be used and charged with AC and DC power .
Single Battery 97.9 Watts per hour FAA approved
**Extended battery NOT FAA Approved