*All battery purchases are final sale. There are no returns on batteries.*
OxyGo Double Cell Rechargeable Lithium-ion Battery (16 Cell) will power the OxyGo without connection to an external power source. When fully charged, a double battery will provide up to 9 hours of operation. The battery recharges when properly installed in the OxyG
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Arrived quickly works real well at least 8 and a 1/2 hour charge