NiCd (Nickel-cadmium) batteries are a type of rechargeable battery. NiCd batteries are commonly used in portable electronics, toys, flashlights, wireless telephones, emergency lights, cordless power tools, and remote control electric model airplanes, boats, and cars. NiCd batteries retain their charge batter than alkaline or NiMH batteries do. This consistent voltage is desirable for many users because there is no loss in performance when the batteries reach the end of their charge cycle. NiCd batteries last longer due to their low discharge rate, and have a longer storage life.