Using this A220/504A Alkaline Battery from Exell Battery, you can power vintage camera equipment, medical testing apparatus, and other electronic devices. The cell serves as a spare or replacement for the carbon zinc Eveready 504 or NEDA 220 battery commonly found in these products. It features 15V of output power, a 60mAh capacity, and a rating of 0.9Wh. The A220/504A is assembled in the USA.