Black and Decker 20V to Hoover 20V ONEPWR Battery AdapterThis battery adapter allow you to use Black and Decker 20V batteries on Hoover ONEPWR 20V. Compatible with following brand of batteries Black and Decker 20V Compatible with following brand of cordless vaccums Hoover 20V ONEPWR Material ABS Molded Connectors Pure Copper NickelPlated Color Black USB Port None Weight 131g Warranty6 months from date of delivery (More Details) Included in the Box Adapter Only Black and Decker to Hoover ONEPWRBlack and