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Technology description
Batteries and configuration

Primary Silver Oxide Button Cells

Primary silver oxide button cell batteries for reliable applications

New: Mercury-free Primary Silver Oxide Button Cells

VARTA Microbattery has started the production of an assortment of mercury-free silver oxide button cells. This is a further milestone in the development of high performance, reliable and environment-friendly batteries.

VARTA Microbattery provides over 30 years experience in the development and production of silver oxide button cells. Modern, fully-automated production lines help to make VARTA Microbattery's silver-oxide button-cells one of the most reliable, low voltage power sources in the world. Thanks to the high-level quality process, these ''Made in Germany'' cells are designed using a unique innovative sealing technology which guarantees their high resistance to leakage.

VARTA Microbattery's silver-oxide cells are used in a variety of electronic applications (watches, calculators, toys and remote controls...). Their reliability and performance make them the preferred power supply for different miniature medical devices and the choice of many other OEM's. Their extensive experience enables the experts of VARTA Microbattery to offer a variety of tailor-made battery solutions.

Primary Silver Oxide Button Type RangeOutstanding application performance is guaranteed for the electronic device designer.

Focused on the market requirements of modern electronic devices VARTA Microbattery offers high performance and reliable Silver Oxide Button Cells:

  • Highest leakage resistance
  • Constant voltage level
  • Low self-discharge rate
  • Long running time
  • Comprehensive assortment
  • Innovative sealing technology
  • Fully automatic production lines
  • Highly precise production
  • Highest quality raw materials
  • 38 different cell types in low- and high-drain version


  • Hundreds of battery assemblies available
  • Global design-in teams
  • High-tech application labs
  • Outstanding key account customer references
  • ide branch office & distribution network
  • ISO 9001/14001


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(Battery technology: Primary Silver Button)
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Primary Silver Oxide Button Information

Primary Silver Oxide Button
(also as printed version available)



Used in following applications ...

  • blood sugar indicator

  • electronic calculator

  • insulin pump

  • medical application


  • remote control

  • thermometer

  • toy

  • watch (digital & analog)