Renata 364 SR621SW Silver Oxide Watch Batteries (1.55V, 2 Count)

Trust your timepiece to the Swiss battery brand that has over 50 years of experience powering watches since its inception in the watch industry.

Renata, founded in Switzerland in 1952, initially focused on producing mechanical parts for wristwatches. By the 1970s, the company's focus shifted to the research and development of high-quality silver-oxide cells to power these watches.

Renata's expertise extends across the entire battery production process. Its modern, highly automated production plant incorporates an extensive quality testing system. In addition to watch batteries, Renata manufactures lithium cells for consumer electronics. The company's research, development, production, and quality testing operations are centralized at its headquarters in Itingen, Switzerland. Renata is ISO 9001 and ISO 14001 certified by Bureau Veritas (updated in December 2020).

Renata's batteries are 100% mercury-free and offer dedicated high and low drain options for optimal performance. Their sophisticated leak-proof sealing technology and high-capacity retention ensure reliable performance. Renata batteries also feature fully transparent freshness dating and convenient peel-off flaps for easy removal.

Renata's silver-oxide watch battery line (SR) has been developed in cooperation with the Federation of the Swiss Watch Industry. This zero-mercury line is available in over 30 sizes, designed to power watches and electronics requiring compact, long-lasting, low-voltage power. Renata is a Swatch Group company, alongside recognized Swiss brands such as Swatch, Tissot, Longines, and Omega.

Renata also offers a wide range of 3-volt lithium batteries (CR) that have been laboratory-tested and approved to meet high-quality standards, ensuring excellent reliability. These batteries can be used for memory backup, powering medical and fitness appliances, measuring equipment and sensors, security devices, entertainment gadgets, remotes, and more.

Renata's line of zinc-air hearing aid batteries (Zinc-air) is engineered to power both analog and digital hearing assisted devices. Their high constant voltage assures long battery life. Renata hearing aid batteries are precision-made in Switzerland and Germany and are packaged in easy-to-use dial cards, with all popular sizes (10, 312, 13, and 675) in stock.

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