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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
Roomba by iRobot 680 Robot Vacuum with Manufacturer's Warranty - Walmart.com
Kingsener 1800LI Li-ion Battery For iRobot Roomba 985 980 960 880 Series - BatteryMall.com