Amazon.com: Mighty Max Battery 14.4v NiCD Battery Replacement for iRobot Roomba 800, 870, 880 : Home & Kitchen
iRobot® XLife™ Extended Life Battery | iRobot
New Battery for iRobot Roomba 870 871 877 880 890 891 894 895 896 - Walmart.com
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