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Nickel Cadmium batteries are rechargeable power sources commonly used in electronics and computers due to their high energy density, long life span, and low internal resistance. These batteries consist of nickel oxide hydroxide and cadmium as positive and negative electrodes respectively, separated by a porous separator, all immersed in an alkaline electrolyte. Despite environmental concerns related to cadmium disposal, Nickel Cadmium batteries remain popular for applications that require high discharge rates, such as two-way radios, emergency lighting, and medical equipment including computer implants. They are known for their durability and tolerance to deep discharge and overcharging, making them a reliable choice for various applications in the electronics and computing industry.