Save money when compared to normal batteries over lifetime Ideal in high-drain applications Life expectancy 1000 chargedischarge cycles Nickel cadmium Ni Cd batteries will replace dry batteries in most applications. They are very economical in applications where normal dry batteries constantly need replacing. Ni Cd batteries are not suitable for use in very low-power applications such as clocks or any similar application where a normal battery would only need replacing infrequently.