Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen
MIGHTY MAX BATTERY 14.4v NiCD Battery Replacement for iRobot Roomba 563 561 551 MAX3536216 - The Home Depot
Roomba Vacuum Battery Removal and Cell Replacement - YouTube
Amazon.com: NASTIMA Upgrade 4400mAh Lithium-Ion Battery for iRobot Roomba 500 600 700 800 980 Series, 1000 Times Long-Life Circles [Premium Cells with UL&CE Approved] : Home & Kitchen