التوضحيات والمميزات : The DeVilbiss iGo supplemental battery pack for the iGo portable concentrator lets you keep a supplemental battery with you wherever you go. The last thing you want is to find yourself out and about and unable to breathe due to a dead oxygen concentrator iGo battery.Size Width: 6 Inches Length: 10 Inches Depth: 1.5 Inches Devilbiss iGo Battery Pack Features and Benefits Easily Stores in a bag, Backpack or Suitcase Easy-to-Mount in the Devilbiss iGo Portable Concentrator Adds up to 5.4 Hours of Life to the iGo