Battery Replacement Compatible with iRobot Roomba 500 600 700 800

Battery Replacement Compatible with iRobot Roomba 500 600 700 800 Series 880 890 861 864 866 675 650 655 695 680 671 640 645 790 780 775 770 760 595 585 561 560 550 Extensive Compatibility: (not compatible with i series, 900 series!!!). Works perfectly on Nimh Roomba models: 894 880 871 870 866 864 861 800 790 785 770 765 761 760 700 694 691 660 655 654 651 650 645 635 632 631 630 625 620 610 605 600 595 590 585 581 580 570 565 564 562 561 560 555 550 545 540 536 535 530 525 520 516 510 500 and more. Upgrade to Lithium Battery Now: Not just a replacement, our high capacity Li-ion roomba replacement parts battery is designed to improve your experience with Roomba by extending the vacuuming time from less than a hour to at least 2 hours on a single charge. Now your Roomba won't have to be charged multiple times for one cleaning job.