Posted on February 24, 2013 by CybermarketRoomba 80501 Battery Replacement (3000mAh) Rechargeable for iRobot Roomba 500, 510, 530, 532, 535, 536, 540, 550, 551, 562, 570, 572, 580, 590, 610, 760, 770, 780 Vacuum Cleaners