Amazon.com: 4000mAh / 57.60Wh Li-ion Replacement Battery for iRobot Roomba 670, Roomba 671, Roomba 675, Roomba 677, Roomba 680 Part NO iRobot 2130LI, 4374392, 4376392, 4462425, 4502233 : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery Accessories - Compatible with Create 2, Scooba 450, Roomba 500 600 700 & Select 800 Series Robots : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen