I have a DeWalt 1/2 inch hammer drill. Cordless , 18V. It has to be pushing 20 years old. The only issue with it is batteries. I don't use it often anymore, and the batteries just don't last. Bought a new set in 2016, and they already are not holding a charge. Damned expensive too.
Sam,
If your drill is 20 years old it's NiCad. The current production NiCad tool batteries being produced aren't very good. They're just not putting any effort into NiCad with the advent of Lithium's. Lithium's are a big step up in convenience and power.
