Will Ni-Mh or Li-Ions be replacing Ni-Cd?
A. In future maybe, but not right now. Ni-Cd still offers a much better cost performance. These cells are the fastest to re-charge and the best load current deliverers. Peak currents of 20C can be achieved, making them ideal for power tools, say. Their main disadvantage is of course, the memory effect. They are also environmentally hazardous. (Some countries are already restricting their usage).
