Amazon.com: Tenergy iRobot Roomba Battery 4500mAh Replacement NiMH Battery for Roomba 500, 550, 560, 580, 600, 614, 630, 650, 660, 700, 770, 800, 880, 900, 980 Series and More : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen