Thanks Gatorb888. Here is what if found. The only number I can find stamped on the charger is 200124DB. The button says "Tune up" and says to use every tenth charge. It may be a model DW 9116 but I am not sure. I checked the two xrp batteries and found two number stamped in the top. One has 200105-SO and 389805-00 and the other has 200114-SO and 389805-00. They are all black instead of having part of the case yellow. I am beginning to think the person selling this on eBay may have had a "tool only" circ saw in a case, and then scrounged around and found a charger and two batteries to put in and call it a "set". The two batteries did come in the original plastic retail packaging. The charger was just in the saw case.
If the numbers above mean anything I would appreciate the information. Thanks.