InogenStandard (4-cell) Battery – for the Inogen Rove 4/Inogen One G4 – Up to 2 Hours, 30 Minutes of Life on Setting 1-0.6 lb. and 5.91 x 2.68 x 0.7 in.

Inogen Standard (4-cell) Battery – for the Inogen Rove 4/Inogen One G4 – Up to 2 Hours, 30 Minutes of Life on Setting 1-0.6 lb. and 5.91 x 2.68 x 0.7 in.

Inogen One G4 Replacement Column Pair - Oxygen Accessories - Two Removable Metal Columns - 0.63 lb., 2.21 in. W x 2.37 in. L x 5.50 in. H

Inogen External Battery Charger - for Inogen Rove 4 and Inogen One G4 - Portable Oxygen Device Battery Charger - 0.12 lbs. and 3.13 in. W x 2.75 in. L x 1 in. H