Amazon.com: Synergy Digital Vacuum Cleaner Battery, Works with iRobot Scooba 450 Vacuum Cleaner, (Ni-MH, 14.4, 2800mAh) Ultra High Capacity Battery : Home & Kitchen
iRobot Roomba Battery for Select 500, 600, and 700 Series
Original Lithium Ion Battery for iRobot Roomba Cleaner 900 800 700 600 Series 960 980 981 965 895 890 860 695 692 680 675 Part - AliExpress
For iRobot Roomba Battery 500 Series | 14.4V 5200mAh NiMH Vacuum Batte — Vanon-Batteries-Store