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Murata 357 / 303 Silver Oxide Button Cell Battery

Bring miniature precision power and unrelenting discharge stability to your critical personal micro-electronics with the Murata 357 SR44 Silver Oxide Button Cell Battery. Engineered by an industry leader in micro-battery manufacturing and advanced electronic components, this premium 1.55-volt mercury-free cell leverages decades of technological innovation to deliver ultra-consistent voltage output. It is the definitive choice for precision luxury quartz watches, compact automotive key fobs, portable medical diagnostic equipment, and low-power IoT sensing devices.

Key Features

  • Premium Silver Oxide Chemistry: Generates a stable 1.55-volt nominal output that maintains flat discharge curves throughout the operational lifecycle of your hardware.
  • Eco-Friendly Mercury-Free Formula: Utilizes an advanced zero-percent mercury composition to provide an environmentally responsible power option that complies fully with global ecological standards.
  • Superior Anti-Leakage Technology: Outfitted with a unique, patented structural sealing gasket layout to minimize structural swelling and leakage risks during extended storage periods.
  • Large-Capacity Miniature Proximity: Packs an expanded 160 milliamp-hour nominal capacity into a localized 11.6-millimeter diameter and 5.4-millimeter height button cell footprint.
  • Universal Cross-Reference Fit: Replaces standard legacy cell markings directly including SR44, SR44W, 303, G13, AG13, and V357 configurations across all major hardware brands.
  • Expansive Thermal Operating Range: Delivers stable, uninhibited electricity flow across harsh microclimates spanning from -10 to +60 degrees Celsius.
  • Sony Micro-Battery Legacy Heritage: Continues the precision manufacturing assembly standards and design patents acquired directly from the historic Sony watch battery production portfolio.

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