The External Battery for Activox? Portable Oxygen Concentrator is an additional battery that can be used in addition to the internal battery of the Activox? Portable Oxygen Concentrator. The external battery is connected to the concentrator to provide up to 4.75 hours of additional usage.
The manufacturer lists these run times for the external battery:
Setting 1 - 4.75 Hours
Setting 2 - 3.75 Hours
Setting 3 - 2.75 Hours
Setting 4 - 2.25 Hours
The battery recharges in approximately 2 hours if completely drained. This is the battery only and does not include any other items.
Please fully charge the battery prior to first use. The battery must be connected to the Activox? concentrator to charge. The charge level of the external battery can be viewed on the display of the concentrator. The charge time is approximately 2 hours.
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