Charge up to two batteries at the same time using this desktop battery charger. This charger connects to an AC power source (wall outlet) and will charge two fully depleted batteries in less than four hours.
Inogen One G3 Double (16 Cell) Battery
Inogen One G3 External Battery Charger with Power Supply
Inogen One G3 Single (8 Cell) Battery
Inogen One G4 4 Cell (Single) Battery
Inogen One G4 8 Cell (Double) Battery