Amazon.com: NASTIMA 14.4V 4400mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 600 700 800 900 Series 614 615 675 680 690 694 760 780 790 805 880 890 895 960 980 985 : Home & Kitchen
Amazon.com: iRobot Roomba Authentic Replacement Parts - XLife Extended Life Battery - Compatible with Roomba 400 600 700 800 Series Robots : Home & Kitchen
Mighty Max Battery For iRobot Roomba 500 series 545 552 562 580 581 582 585 595 785123691808 | eBay