MIGHTY MAX BATTERY 14.4-Volt NICD 2000 MAH Replacement Battery for Roomba 400 Series ML-RMB400 - The Home Depot
Battery for iRobot Roomba 500 series 510,530,532,535,540,550,560,570 - MightyMaxBattery
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - Lithium Ion Battery for Roomba® e & i Series Robot Vacuums : Home & Kitchen
iRobot Originele Li-ion 1800mAh/14.4V Accu voor de Roomba 'e' en 'i' Serie | bol.com