Cameron Sino Technology replacement battery for iRobot vacuum devices - HHD10520 at Batteries Plus
iRobot Roomba Series 500, 600, 700, 800, and R3 Battery
iRobot Original Li-ion Battery 3300mAh/14.4V for the Roomba 's' Series
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - Lithium Ion Battery for Roomba® e & i Series Robot Vacuums : Home & Kitchen