Want to keep your oxygen therapy running at all times? Check out the Lifestyle Rhythm P2-S3 AC Power Supply. This accessory ensures your P2-S3 portable oxygen concentrator is always running. Just plug it in and watch that Rhythm P2-S3 battery get recharged in no time, giving you peace of mind while you go about your day or while you're sleeping at night. You can rely on this AC power supply to keep your Rhythm P2-S3 and P2-S4 juiced up and ready to roll. Using the AC power supply couldn't be easier—just plug it into any standard wall outlet. Charging your Lifestyle Rhythm P2-S3 portable oxygen concentrator is just like charging your phone. One fantastic feature to highlight is that you can charge your device while using it at any oxygen setting. When you plug it into a 110V wall outlet, your battery can be fully charged in as little as 4 hours, even if you're using the device at the same time. This convenience makes the AC power supply a must-have in your oxygen therapy routine.