Amazon.com: HQRP 3500mAh Green Line Extended Capacity APS Battery Compatible with iROBOT Scooba 6000/6050 [Vacuum Cleaning Robot] Replacement Plus Coaster : Home & Kitchen
NiMH Battery: 14.4V 4500mAh Replacement Battery for iRobot Scooba 5900
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14.4V Replacement Battery for iRobot Scooba 5900 5800 | eBay