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Duracell 309/393 Silver Oxid Button Battery
  
  
    $2.51
  
  
  
The Duracell 309/393 is a silver oxide button cell battery designed for high-precision, low-drain devices. It delivers stable and reliable voltage, making it ideal for watches, medical devices, and sensitive electronics.
 • Type: 309/393 (SR754W / SR48).
 • Chemistry: Silver Oxide.
 • Nominal voltage: 1.55 V.
 • Typical capacity: ~80 – 100 mAh.
 • Dimensions: Ø 7.9 mm x 5.4 mm.
 • Features:
 • Stable voltage output.
 • Long shelf life (4 – 5 years).
 • Mercury-free construction.
 • Recommended applications:
 • Wristwatches.
 • Calculators.
 • Portable medical devices (e.g., meters).
 • Small toys and electronic gadgets.