To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
This sweeper is completely useless. Save your money and buy a corded one. There is not enough power to do anything with it. Waste of time and money. Black+Decker engineers should be ashamed for releasing such an item to the public.