I have an old Dewalt NiCad drill driver which I am rather fond of. It was given to me for a Christmas present around 10 years ago and it is the first proper brand powertool I ever owned. Before that I had useless cheap stuff. Despite it being rather heavy and cumbersome by modern standards as a drill driver it is more powerful than my newer Makita combi and I like at least a couple of drills on the go so I don't need to keep swapping bits (pilot holes, countersinking etc). The problem is it has started to develop a bit of a metallic smell every time I use it, is this likely to be the bushes? The drill still works perfectly but I am worried it will just go into a cloud of smoke one day! I am not sure if it is worth spending a penny on fixing it considering it is out of date technology. One battery is original and still has some life in it, the other is a clone and another original is dead.