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Maxell SR43SW 301 125mAh 1.55V Silver Oxide Button Cell Battery - Hologram Packaging - 1 Piece Tear Strip, Sold Individually

Item #: MAXELL-301
Brand: Maxell
Item #: MAXELL-301
Brand: Maxell

Maxell SR43SW Battery

Low-Drain Discharge for Analog Watches

The Maxell SR43SW battery is commonly used in watches, toys, and key-less entry devices for cars. This non-rechargeable power source utilizes silver oxide chemistry to offer a flat discharge rate for longterm, reliable power. This stable discharge keeps the voltage of the battery steady in order to deliver consistent and reliable power throughout the life of the battery. The Maxell SR43SW, which is also known as a 301 button-type coin cell, is designed specifically for use with low-drain electronics, such as analog watches.

Maxell is noted worldwide for its expertise within the button cell industry. With years of research and experience, Maxell has become a leading supplier of button-type batteries for powering miniature electronics. In addition to creating and offering reliable power, Maxell has taken the environment into consideration by eliminating the use of mercury and lead in their batteries. This Maxell SR43SW battery is sold individually; however, the button-type cells are packaged in 5-piece tear strips. For larger orders, the silver oxide batteries will be shipped in boxes of 100 pieces, which is made up of 20 individual tear strips of 5. We encourage you to place your order in multiples of five for a more organized shipment.

  • Mercury-free formula reduces the battery's environmental impact
  • Flat discharge rate: voltage remains constant until battery discharges itself
  • Packs at least two times as much energy density as standard alkaline coin cellS
  • Specifically geared towards low-drain apparatuses, like analog watches
  • Superior leak resistant processing prevents battery from leaking
  • Cross References: Energizer 301, Duracell D301, Timex D, Varta V301, Renata 301, Bulova 226, Seiko SB-A8, Citizen 280-01


  • Battery Size: SR43SW
  • Battery Chemistry: Silver Oxide
  • Nominal Voltage: 1.55V
  • Nominal Capacity: 125mAh
  • Nominal Discharge Current: 100μA
  • Dimensions:
    • Length - 0.165" (4.2 mm)
    • Diameter - 0.457" (11.6 mm)
  • Weight: 0.060 oz. (1.7 g)
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