Nastima Upgrade 14.8V 5000mAh Lithium ion Battery for iRobot Roomba 900 800 700 600 500 Series 980 960 895 891 890 880 870 860 805 790 780 770 695 690 680 675 650 614 595 585 561 560 555 531 530 510

Features:

• Ultra High Capacity and Long Life Cycles 14.8v 5000mAh Li ion battery Lasts 4x times Longer than original 3000mAh replacement batteries, It runs well up to 2 3 hours for iRobot Roomba 900 series and 3 4 hours for iRobot Roomba 500 800 series
• Compatible With Specially designed for the roomba 900 series and also compatible with other 500 800 series 500 series 500 510 520 521 525 530 531 532 533 535 536 540 545 550 552 555 560 561 562 563 564 565 570 580 581 590 595 600 610 614 620 625 630 640 650 653 654 655 660 671 675 680 690 695 700 760 770 780 790 800 850 860 871 870 880 890 895 900 960 980 985
• Safe and Reliable Patented battery balancing technology, built in over charge, over discharge, over current, over voltage, short circuit and over temperature protection.
• Long Cycles and Save Money Li ion battery can last 2 years for daily usage 39.99 1000cycles 0.0399 cycles.
• 100% Satisfaction You will be 100% satisfied or we ll give you 35 days moeny back, 1 year Warranty.