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
Amazon.com: 4000mAh / 57.60Wh Li-ion Replacement Battery for iRobot Roomba 670, Roomba 671, Roomba 675, Roomba 677, Roomba 680 Part NO iRobot 2130LI, 4374392, 4376392, 4462425, 4502233 : Home & Kitchen