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.
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.
Silver Oxide batteries are currently produced with flat circular cathodes and homogeneous gelled anodes.
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.
Maxell | Sony | Seizaiken | Varta | Energizer
*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.