Murata Battery 1.55V Silver Oxide Watch Button Cell

New Murata Watch Battery with high quality & performance

Murata has been the sole manufacturer of Sony branded watch batteries since acquisition of Sony’s micro battery business in 2017. With the introduction of the SR series, Murata is launching its own line-up of micro batteries for watches

Silver Oxide(SR) Battery with
high reliability & technical performance
Development of the world’s first mercury-free silver oxide battery in 2004
Historically, mercury has been used in button batteries to reduce hydrogen gas generated inside the battery
because the elimination of mercury was considered technically impossible. Murata undertook the challenge
of designing mercury-free silver oxide batteries to contribute to the protection of the environment and
consumers. Murata successfully introduced the world’s first mercury-free silver oxide batteries in 2004 and
went on to develop a mercury-free alkaline manganese button battery in 2009.

Unique manufacturing process for strong anti-leakage performance
Murata’s button batteries have superior anti-leakage performance thanks to its unique sealing material
and technology. Our patented “J-shaped gasket” was invented as a unique sealing solution to maintain
air pressure inside the battery. Optimization of the gasket shape results in the reduction of leakage
risks during long-term storage.