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TO GO WITH STORY BY DAVE MCHUGH** The disc-shape robot vacuum cleaner "RoboCleaner RC 3000", front, of German cleaning system producer Alfred Kaercher GmbH & Co. rolls back to its charging station,
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Robot Vacuum Cleaner Battery 6v/2100mah 2.891-029.0 For Karcher Robocleaner Rc3000 - Digital Batteries - AliExpress
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