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Zen-O External Battery Charger
The Zen-O External Battery Charger is designed to charge your Zen-O batteries outside of the portable oxygen concentrator. With an external charger, you can be charging one battery while still using your portable concentrator. Having extra batteries provides you more power for the ultimate freedom and an external charger makes the process very convenient.
Don't be tied to the wall - experience the freedom provided by owning a portable oxygen concentrator!