Tornado 17" Ultra High-Speed Battery Operated Burnisher (98494)The days of working with a corded ultra high speed burnisher are over. The Tornado 17" Ultra High Speed Battery Operated Burnisher (98494) is a game changing floor machine that eliminates the hassle of power cords by running on eco friendly gel batteries. Now you can move freely between cleaning areas without constantly plugging and unplugging, dramatically boosting your productivity and efficiency. With approximately two hours of runtime per charge,