Original Battery 1800mAh For iRobot Roomba 655 690 780 805 860 880 890 960 6 7 8 9 series machine 601 615 760 780 805 960 Part - AliExpress
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Amazon.com: NASTIMA 14.8V 5000mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 960/895/890/860/695/680/690/675/640/614, Replace The Original 1800mAh Lithium ion Battery : Home & Kitchen