Amazon.com: NASTIMA 14.8V 5000mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 960 895 890 860 695 680 690 675 640 614 : Home & Kitchen
Cameron Sino 4000mah Battery For Irobot Roomba 614,615,640,652,665,670,671,675,677,680,681,685,690,691,695,696,801,805,850,860 - Digital Batteries - AliExpress