Tenergy 3850mAh NiMH Replacement Battery for Roomba 500/600/700/800/900 Series - RobotShop
iRobot Roomba 599 Li-ion Extended Long Life Replacement Battery
Roomba Battery Long-Life ® (iRobot compatible)
High Quality Irobot ROOMBA 871 Battery | LaptopBatteryDirect.net
Amazon.com: NASTIMA 14.8V 5000mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 960/895/890/860/695/680/690/675/640/614, Replace The Original 1800mAh Lithium ion Battery : Home & Kitchen
Roomba Battery Long-Life ® (iRobot compatible)
14.4V For iRobot Roomba NI-MH Battery 500 600 650 700 800 595 620 660 780 Series | eBay