Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen
Upgrade Power 4500mAh 14.4v Replacement Battery Extended-for iRobot Roomba 500 600 700 800 Series Vacuum Cleaner 785 530 560 650
iRobot Roomba Series 500, 600, 700, 800, and R3 Battery