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Sony 379 (SR521SW) 1.55V Silver Oxide 0%Hg Mercury Free Watch Battery (1 Battery)
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mpn: S-379-SR521SW-1, ean: 0706148502771,
4.7 out of 5 stars with 53 reviews
Sony 379 (SR521SW) Silver Oxide 0%Hg Mercury Free 1.55 volts batteries. Sony was the first Corporation to provide the first mercury free silver oxide battery to consumers. Silver oxide batteries are primary cells that have a high energy/weight ratio. Silver oxide is used as the positive electrode (cathode) while zinc is used as the negative electrode (anode) with an alkaline electrolyte. Sony silver oxide batteries provide an extremely high quality, compact battery for the high performance