"universal" battery charger
A ***** store is nearby so I plan to take the drill and it's battery packs with me and discuss with them the purchase a higher voltage charger. As you may suspect, if the drill wasn't my Dad's I probably would not invest in a 50 to 60 dollar charger for a portable drill that I could replace for 80 to 90 dollars.
BTW, with the amount of remodeling and repairing I do in my home and those of my family, I am keeping the additional drill/drive set. It, along with my original Craftsman, will get much use.
Again, thanks for your response!