Silver Oxide Batteries

Product details

Premium silver oxide batteries are specially designed to meet the varying power requirements of a wide variety of applications such as: analog and digital watches, medical instruments, calculators, toys, and other portable electronics. They are ideal replacement batteries for Sony, Energizer, Maxell, Seiko, Renata, Varta, Rayovac, Eveready, Duracell, and other battery brands.

  • Main uses

    Watches, calculators, laser pointers; and portable medical devices such as insulin pumps, thermometers, and other portable electronics.

    Sodium hydroxide (NaOH) electrolyte (low drain) cells are primarily designed for low drain continuous use over long periods of time, typically up to five years. This is commonly found in analog watch applications.

    Potassium hydroxide (KOH) electrolyte (high drain) cells are designed for continuous low drains with periodic high drain pulse demands. This is typical of applications such as LCD watches with backlight, analog watches with alarms and calculators. Life expectancy in these applications is typically between one to three years.

  • Characteristics and Advantages of Energizer Silver Oxide Batteries

    • Higher Voltage than comparable mercury batteries.
    • Flatter discharge curve than alkaline manganese dioxide batteries.
    • Good low temperature characteristics.
    • Good resistance to shock, vibration, and acceleration.
    • Low and essentially constant internal resistance.
    • Excellent service maintenance; in excess of 90% after storage at 70 degree Fahrenheit for five years.
    • Available in voltages ranging from 1.55 to 6.2 volts and a variety of sizes.
  • Battery Construction

    Silver Oxide batteries are currently produced with flat circular cathodes and homogeneous gelled anodes.

    Cathodes
    Are a mixture of AG2O and conductor.
    Anodes
    Are a gelled mixture of amalgamated zinc powder and electrolyte.
    Separators
    Are constructed of specially selected materials to prevent the migration of any solid particles in the battery.
    Gaskets
    Insulating and sealing gaskets are molded of nylon.
    Can
    The exterior battery surfaces of the can are of nickel and resist corrosion and insure good electrical contact.
  • Electro-Chemistry

    Silver oxide batteries contain a cathode of silver oxide with a low percentage of manganese dioxide and graphite, an anode of high surface area zinc, and a highly alkaline electrolyte consisting of either sodium hydroxide or potassium hydroxide. The open circuit voltage of silver oxide batteries is 1.55 nominal volts. The operating voltage at typical current drains is 1.55 volts or more. Silver oxide batteries offer a higher flat operating voltage characteristic than mercuric oxide batteries. The type of electrolyte used with silver oxide batteries determines their rate or current carrying capability. Under heavy drains, potassium hydroxide (KOH) electrolyte offers less resistance to the current flow and allows the battery to operate at higher efficiency than a sodium hydroxide (NaOH) electrolyte. At low drains both electrolytes operate with equal efficiency. Silver oxide batteries containing a KOH electrolyte are more difficult to seal than those containing at NaOH electrolyte. As a result, NaOH batteries are typically more leakage resistant than similar sized KOH batteries. Both batteries however, exhibit excellent long term salt resistance.

PREMIUM SILVER OXIDE BUTTON CELLS

Maxell | Sony | Seizaiken | Varta | Energizer

Model Rated
Capacity
(mAh)
Nominal
Voltage
Cross Reference I.E.C. Weight
(gram)
Diameter
(mm)
Height
(mm)
301 110 1.55 SR43SW SR1142SW
(SR43)
1.7 11.6 4.2
303 175 1.55 SR44SW SR1154SW
(SR44)
2.55 11.6 5.6
309 70 1.55 SR754SW SR48 1.13 7.9 5.4
315 21 1.55 SR716SW SR67 0.33 7.9 1.65
317 11.5 1.55 SR516SW SR62 0.19 5.8 1.65
319 18 1.55 SR527SW SR64 0.31 5.8 2.7
321 14 1.55 SR616SW SR65 0.28 6.8 1.65
329 36 1.55 SR731SW SR731SW 0.57 7.9 3.1
335 5 1.55 SR512SW SR512SW 0.14 5.8 1.25
337 7.5 1.55 SR416SW SR416SW 0.12 4.8 1.65
339 13.5 1.55 SR614SW SR614SW 0.22 6.8 1.45
341 13.5 1.55 SR714SW SR714SW 0.3 7.9 1.45
344 105 1.55 SR1136SW SR42 1.6 11.6 3.6
346 9 1.55 SR712SW SR712SW 0.23 7.9 1.3
350 105 1.55 SR1136W SR42 1.6 11.6 3.6
357 175 1.55 SR44W SR1154W
(SR44)
2.3 11.6 5.4
361 23 1.55 SR721W SR58 0.42 7.9 2.1
362 23 1.55 SR721SW SR58 0.42 7.9 2.1
364 20 1.55 SR621SW SR60 0.31 6.8 2.15
365 32 1.55 SR1116W SR1116W 0.7 11.6 1.65
366 33 1.55 SR1116SW SR1116SW 0.7 11.6 1.65
370 34 1.55 SR920W SR69 0.66 9.5 2.1
371 34 1.55 SR920SW SR69 0.66 9.5 2.1
373 26 1.55 SR916SW SR68 0.53 9.5 1.65
376 26 1.55 SR626W SR66 0.42 6.8 2.6
377 26 1.55 SR626SW SR66 0.42 6.8 2.6
379 14 1.55 SR521SW SR63 0.25 5.8 2.15
381 49 1.55 SR1120SW SR55 0.93 11.6 2.1
384 41 1.55 SR41SW SR41 0.57 7.9 3.6
386 120 1.55 SR43W SR43 1.7 11.6 4.2
387S 60 1.55 387 SR42 1.0 11.6 3.6
389 85 1.55 SR1130W SR54 1.35 11.6 3.0
390 85 1.55 SR1130SW SR54 1.35 11.6 3.0
391 49 1.55 SR1120W SR55 0.93 11.6 2.1
392 41 1.55 SR41W SR41 0.57 7.9 3.6
393 70 1.55 SR48W
SR754W
SR48 1.13 7.9 5.4
394 60 1.55 SR936SW SR936SW 1.11 9.5 3.6
395 52 1.55 SR920SW SR57 0.79 9.5 2.7
396 32 1.55 SR726W SR59 0.51 7.9 2.6
397 32 1.55 SR726SW SR59 0.51 7.9 2.6
399 52 1.55 SR920W SR57 0.79 9.5 2.7
EPX76 200 1.55 SR44W SR44 2.27 11.6 5.4

*Disclaimer: Whenever possible we strive to utilize the best quality brands for each model. Limited exceptions occur for very minor models which may not be available from any first rate manufacturer.

Check out our full range of silver oxide watch batteries, alkaline button and high voltage cells, lithium coin cells, and Premium Plus zinc air batteries.