Battery 3500 mAh compatible with Roomba series 500, 600, 700 and 800
China Bateria De Repuesto 14, 4V 4500mAh PARA for Irobot Roomba 500 600 700 Aps Accu Akku Battery for Aspirador - China for Irobot Roomba Battery and for Roomba Battery price
Amazon.com: MaximalPower Ni-Mh 14.4V 3000mAh Batería de repuesto para iRobot Roomba 11702 80501 | GD-Roomba-500 VAC-500NMH-33 y 500 530 535 550 600 610 760 770 800000000 860. Robot APS : Herramientas y Mejoras del Hogar
4500 mAh Roomba battery compatible with 500, 600, 700 and 800 mAh battery