Compatible with:iRobot Roomba® 510 iRobot Roomba® 530 iRobot Roomba® 535 iRobot Roomba® 540 iRobot Roomba® 550 iRobot Roomba® 560 iRobot Roomba® 570 iRobot Roomba® 580 iRobot Roomba® 610 iRobot Roomba® 760 iRobot Roomba® 770 iRobot Roomba® 780Technical Details：Item Weight1.5PoundsProduct Dimensions  5.4 x 2.2 x 1.9 inchesOrigin ChinaItem model number Romaba 500Color YellowVoltage 14.4VItem Package Quantity 1Battery Cell Type Ni-MH
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