While you wait for answers, we may have found some information which could help you.
Click here for Remove Black Deckerblack & decker KC9045 cordless drill/screwdriver?
black & decker battery not holding charge?
how do i put a drill clutch back together?
how do i fix my black & decker quattro multi tool {battery bay}?
is my black and decker charger faulty?
black and decker mains drill?