Amazon.com: for iRobot Replacement Parts Roomba 1800LI Lithium Ion Battery Compatible with Roomba 960/895/890/860/695/680/690/675/640/614 4376392 Series 4INR 19/65 14.4V 1800mAh/26Wh (1800mah) : Home & Kitchen
Amazon.com: SPARKOLE 14.4V 5200mAh Lithium Ion Battery Compatible with iRobot Roomba 980, 960, 690, 600, 700, 800, 900 Series 985 970 965 895 890 860 695 692 680 675 640 614 : Home & Kitchen
Roomba 690 vs. 890 (12 side-by-side cleaning tests) | Modern Castle