External Battery Charger for Inogen One G3 Oxygen Concentrators
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If you have multiple Inogen One G3 batteries then the External Battery Charger is a great option that enables you to recharge your Inogen One G3 Batteries outside of the concentrator.
Custom-made for Inogen One G3 Batteries, this recharger can recharge a fully depleted battery in approximately 2-4 hours (8-cell battery) or 4-8 hours (16-cell battery). The External Battery Charger includes an AC Power Supply with North American standard power cord for use in US and Canadian wall sockets.