14.4V 4400mAh Replacement Battery for iRobot Roomba 500 600 700 800 Series

Battery for Roomba 520 530 550 561 563 620 621 630 632 671 676 760 765 772 775 780 782 866 870 871 880 900

• High performance: 4400mah A + lithium-ion battery can provide up to 2-3 hours working time once fully charged. Item Dimensions ：6.7 x 15.7 x 6.1 centimetres
• Wide Compatibility - Compatible with Roomba 500 600 700 800 series, compatible with Roomba 500 510 510 516 520 520 521 525 530 531 532 533 534 535 536 540 545 550 5 51 552 552 555 560 561 562 563 563 564 565 570 580 581 585 590 595 599 600 605 610 614 615 615 620 6 25 630 630 631 632 635 640 645 650 651 652 652 653 653 654 655 660 665 670 670 670 671 675 677 680 685 6 91 694 695 700 760 761 765 770 774 775 780 785 790 800 805 850 860 861 864 866 870 871 880 890 891 8 94,895 and up.
• Multiple Protection The printed circuit board built-in patented lithium-ion battery technology can prevent overcharging, over-current, over-discharge and overheating.
• Longer Lifespan: Low self-discharge rate (1% per month), the battery can maintain 85% of its capacity after 1 year of use (up to 800 times cycles. 1 x melasta Lithium-Ion battery = 4 x NiMH batteries from other brands).
• 【Important Notes】Before using the battery for the first time, it is strongly recommended to charge it fully, which will help to prolong the battery life.