Maxell 329 SR731SW 1 Battery

Maxell 329 SR731SW 1 Battery

Item Specifications
Our PriceUS$4.35
SKU101008
Weight0.0455 lbs.
Voltage1.55V
Capacity36mAh
ChemistrySilver Oxide
BrandMaxell
Mfg #329
UPC025215736704
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Powerful Maxell Micro Silver Oxide SR731SW One Battery 329


Dimensions: 7.9mm Diameter x 3.1mm Height



For a great price on a box of 100!


Please keep these and all shiny silver child-attracting batteries safely stored away from children; dangerous if swallowed!


Do not use (inherently low performing) "LR" alkaline batteries in place of silver oxide in any timepiece.


Genuine Maxell Hologram Anti-Counterfeit Packaging (other package is not genuine)
1.55 volts 36 mAh
Mercury Free
This is a primary non rechargeable disposable battery

The 329 is a long life silver oxide chemistry with non-declining power output; alkaline batteries of the same 1.5 voltage start at 1.5 and at the half life are at .8 volts, silver oxide start at 1.55 volts and maintain the voltage until expiring. This is why silver oxide batteries are always used in watches, insulin pumps and sniper scopes or mission critical situations. Never use alkaline batteries for any device requiring a steady constant voltage. A watch with declining voltage cannot give the correct time.

Fits and Replaces: This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S42, Energizer 329, UCAR 329, Eveready 329, Duracell D329, Mallory D329, Maxell SR731SW, Panasonic SR731SW, National SR731SW, Rayovac 329, Rayovac RW300, Renata 329, Renata 24, Seiko SR731SW, Sony SR731SW, Energytec SR731SW, Toshiba SR731SW, Varta V329, Varta 525


Fits and replaces:

  • AWCI S42
  • Duracell D329
  • Duracell SR731SW
  • Energizer 329
  • Energytec SR731SW
  • Eveready 329
  • Mallory D329
  • Maxell SR731SW
  • National SR731SW
  • Panasonic SR731SW
  • Piaget Polo 7131 C701
  • Piaget Polo 7131C701
  • Rayovac 329
  • Rayovac RW300
  • Renata 24
  • Renata 329
  • Seiko SR731SW
  • Sony SR731SW
  • Swatch 732
  • Swatch 742
  • Toshiba SR731SW
  • UCAR 329
  • Varta 329
  • Varta 388
  • Varta 525
  • Varta LR731SW
  • Varta SR7331W
  • Varta V329


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