efluky 3800mAh Ni-MH Replacement Battery for iRobot Roomba 500,600,700,800&900 Series 500 510 530 531 532 535 536 540 550 560 570 580 595 600 620 630 650 660 700 760 770 780 790 800 870 880(Yellow) Replacement battery type: Ni-MH; Voltage:14.4V; Capacity: 3800mAh. Made with the highest quality environment friendly materials. Say goodbye to environment killer -- cheap Ni-Cd battery. Compatible with all iRobot Roomba 500, 600, 700, 800, 900 Series Vacuum Cleaner(500 505 510 520 521 530 531 532 533 534 535 536 540 545 550 552 555 560 561 562 563 564 565 570 580 581 585 587 589 595 600 605 610 615 616 620 621 625 630 631 632 639 650 651 660 670 680 681 700 720 750 760 765 770 772 772e 774 775 776 776 776p 780 782 782e 785 786 786p 800 850 860 865 866 870 871 875 876 880 886 890 900 960 980 R3 80 501 4419696 Scooba 450 ect.) FloorVac Reliable safeguard features with build in protection for short-circuit, overheat and over current. It is fully compatible with iRobot Roomba 500&600&700&800&900 series cleaner perfectly. Works as Genuine Parts. High capacity battery for longer running time- lasts for 2.5 to 3.0 hours without any problems after fully charged. Easy to charge and connect APS battery compatible with all Roomba FloorVac models. Guarantee 30-day money back and 12-month warranty against manufacturer defects from the date of the purchase.