What is the amp rating of the BLACK&DECKER steam mops? Wilson December 17, 2020 19:32 Updated Follow The steam mops have an amp rating of 12 amps. Related articles The battery for the Scum Buster is not charging. I have placed the battery into the charger and the red light is on but the battery does not charge. What could be the problem? Is there an MSDS available for the ScumBuster Shampoo? Comments 0 comments Please sign in to leave a comment.