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14.4V 3500mAh For iRobot Roomba Ni MH Vacuum Cleaner Rechargeable Battery Pack Replacement for 500 550 560 600 650 700 780 800|Replacement Batteries| - AliExpress
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Powerextra 4.0Ah 14.4V Replacement Battery Compatible with Roomba R3 500 600 700 800 900 Series 500 510 531 535 540 550 552 560 570 580 595 620 650 660 700 760 770 780 790 800 870 900 : Home & Kitchen
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