The new P2-E6 Portable Oxygen Concentrator from Rhythm Healthcare is designed for 24/7 use, making it your one solution for reliable oxygen at Home, Away, and for Travel! It features six pulse flow settings, up to 5.4 hours of battery life (at Setting 1), and weighs just 4.7 lbs. The P2-E6 charges in approximately 4 hours. Adding an optional Backup Battery will double your power capabilities, and provide charging time in only 2.5 hours. For traveling, the POC meets all FAA restrictions and includes and AC/DC car charger. This portable, lightweight unit allows you to jump in the car at any time to run errands, or take a much needed vacation!