While you wait for answers, we may have found some information which could help you.
Click here for Battery Dead ChargedKC1882F Black and Decker drill: what polarity are the battery connections?
carbon brushes replacement Black & decker BD163V?
Repair Cordless Drill Battery?
12v?
how to change to power cord on my black & decker H 552 400 Watt 10mm(3/8") ?
how to get a drill bit out of a keyless chuck?