SPARKOLE 5200mah 14.4V li-ion battery for irobot roomba vacuum 900,800,700,600,5

No more frequent replacing with NiMH batteries. Fully compatible with both Li-ion and Ni-MH powered iRobot Roomba 900 series and 800, 700, 600 series models: 985 980 970 960 965 964 961 900 895 894 891 890 880 871 870 877 866 864 861 860 850 805 800 801 790 785 780 775 774 770 765 761 760 700 695 692 691 690 685 680 677 675 671 670 665 660 655 654 653 652 651 650 645 640 635 632 631 630 625 620 615 614.