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
Amazon.com: SPARKOLE 5300mAh Extended Life Lithium Ion Battery Compatible with iRobot Roomba 500 600 700 800 Series 880 770 650 655 870 760 780 790 645 595 585 561 560 550 531 861 864 866 775 780 : Home & Kitchen
Why does my Roomba® or Braava® not turn on or charge properly?