Housmile Battery for Irobot Roomba 500 series 500 510 530 531 532 533 535 536 540 545 550 552 560 562 570 580 581 582 585 595 600 620 630 650 660 700 760 770 780 790 800 R3 80501 4419696 3.5Ah Ni-MH Condition:100% Brand New, Batteries are made with the highest quality materials Ni-MH battery, 3.5Ah Capacity, 14.4V made with high quality battery cells 100% compatible with original manufacturer equipments and chargers Battery for Irobot Roomba 500 series 500 510 530 531 532 533 535 536 540 545 550 552 560 562 570 580 581 582 585 595 600 620 630 650 660 700 760 770 780 790 800 870 R3 80501 4419696 Backed by 30 Days money-back guarantee and 1 Year Limited Warranty