Morpilot 14.4V 4050mAh XLife Replacement Battery for iRobot Series 500 600 700 800 900 etc, Extended Life Battery Ni-MH Ultra Long Life 1000 Cycles: Amazon.co.uk: Home & Kitchen
Amazon.com: Authentic iRobot Parts - XLife Extended Life Battery - Compatible with Roomba 400/600/700/800 Series Robots : Home & Kitchen
China Bateria Recargable PARA Aspirador 500 600 700 800 Series 14, 4V 3500mAh Ni-MH Battery Akku - China Aspirador Irobot Battery, Roomba Bateria