Explanations and Features: * Philips RESPERNEX provides a portable Li-Ion battery for the SimpleJO oxygen concentrator, far from the AC or DC power source. The batteries slide in and out of the portable capacitor, making changing batteries fast and easy. A lightweight and easy-to-carry battery and an extra battery give you the assurance that you will have extra time out of the power source when needed. * Li-ion battery. * Rechargeable.
