14.4-Volt 3300 mAH NiMH Replacement Battery For iRobot Roomba Discovery 500 Series Robotic Vacuums http://bit.ly/ * Cell Type : Ni-MH * Voltage: 14.4V * Capacity: 3300mAh * Dimension: 145mm x 63.5mm x 56mm * APS Replacement rechargeable battery for iRobot Roomba 500 Series, Discovery Series and Original models. * Charges in 3 hours with APS charger * ProvideSale Price:$23.99Read More