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Amazon.com: Fancy Buying New Upgraded 3500mAh 14.4V Battery for Robot 600 Series 600 610 614 620 625 630 635 640 645 650 655 660 665 670 680 690 : Home & Kitchen
Lithium Roomba Replacement Battery for iRobot Roomba 980, 960, 895, 890, 860, 695, 690, 680, 675, 640, 614, 900, 800, 700, 600, 500 Series and Scooba 450, 4400mAh - CE Certified Battery Pack - Vacuum And Dust Collector Accessories - Amazon.com