EVEREADY® Super Heavy Duty® is the affordable Carbon Zinc solution that provides power for you and your family’s basic power needs. EVEREADY® Super Heavy Duty® brand offers a complete line of AA, AAA, C, D, 9v and 6v lantern batteries and are an economical choice for clocks, flashlights, radios and other devices that are low drain. Since 1896 EVEREADY® batteries have been providing dependable portable power. For every family, everywhere, every day. EVEREADY® for Life.