Pwr+® Extended 3ah Capacity Battery for Irobot Roomba 880 500 510 530 532 535 540 545 550 552 560 562 570 580 581 582 585 595 600 610 611 620 625 627 630 650 653 654 660 670 700 760 770 780 790 R3 80501 4419696 Pet Series Replacement by PWR+