Brand new replacement batteries that are manufactured to meet the specifications of the original
High quality, high capacity battery for longer running time.convenient to use
Ni-MH battery, 3.5Ah Capacity, 14.4V made with high quality battery cells
50 percent greater useful life than original Roomba batteries / Custom packaging
Compatible with iRobot Roomba 400 Series Floor Vac models Advanced Power System (APS) Battery.