The Inogen One G4 4-Cell Single Battery is the ideal choice for users seeking the absolute lowest weight for their portable therapy. Weighing just 200 grams, it keeps your total device weight at a remarkable 1.27 kg while offering up to 2.7 hours of cordless runtime. Perfectly suited for local errands and quick doctor appointments, this original Inogen battery provides clinical reliability in its most compact form. 2.7-Hour Runtime – Reliable power for grocery shopping, quick trips, and errands. Minimalist Weight – Keeps your total G4 system under 1.3 kg for effortless carry. Rapid Charging – Reaches full capacity in approximately 3 hours via standard power. FAA Travel Ready – Approved for commercial airline travel in carry-on luggage. Safe Technology – Intelligent internal sensors protect your device from surges. The Inogen G4 Single Battery is the premier choice for burden-free daily outings where weight and mobility are your top priorities.
