Amazon.com: 14.4V 3200mAh i7 Battery Replacement for iRobot Roomba e and i Series, Large Capacity Battery Compatible with Roomba i7 i7+ i8 i6 i4 i4+ i3 i3+ i7158 J7 7150 7550 and
Amazon.com: 1800mAh 1800LI Battery for iRobot Roomba 985/980/965/960/900/896/895/891/890/880/870/860/850/805/801/800/790/780/770/760/700/695/690/680/675/670/660/640/620/615/614/600 14.4V 26Wh : Home & Kitchen
iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots
iRobot Roomba Authentic Replacement Parts - Roomba Integrated Dock Charger with North American Line Cord - Compatible with Roomba 500 600 700 800 900 Series Robots - 4452369 , Black: Amazon.com: Industrial & Scientific
Amazon.com: Cameron Sino Rechargeble Battery for iRobot Roomba 500 (4000mAh / 57.60Wh) : Electronics
iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots