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SR527SW Maxell 1.55v Silver Oxide Watch Battery (319, D319, 615, SB-AE, 280-60, GP319, SR64)

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SR527SW Maxell 1.55v Silver Oxide Watch Battery (319, D319, 615, SB-AE, 280-60, GP319, SR64) From £2.49 EX VAT Buy Online from The Battery Shop

SR527SW Maxell 1.55v Silver Oxide Watch Battery (319, D319, 615, SB-AE, 280-60, GP319, SR64)

Type: Silver Oxide.
Voltage: 1.55V.
Diameter: 5.8 mm.
Height: 2.7 mm.

Also known as:
Maxell : SR527SW
Eveready / Energizer : 319

Duracell : D319
Rayovac : 319
Timex :
Varta: V319
Renarta : 319
Bulova : 615
Seiko: SB-AE
Citizen : 280-60
Gold Peak GP: GP319
IEC : SR64


About Maxell SR Silver Oxide Batteries

Maxell is the first company in Japan to successfully market button-type silver oxide batteries. Based on many years of experience and know-how in various fields, the SR battery is suitable for precision electronic devices such as quartz watches, where high-energy density per unit volume and a stable operating voltage are required. Various product lineups are available to meet the growing need for supplying power to various types of watches, ranging from large to compact, thin models. Zero-mercury, zero-lead added types are also available. For more information, please contact Maxell.

Flat discharge characteristics A flat discharge curve during discharge supplies a stable voltage until the end of the discharge life.
High-energy density High-energy density per unit volume provides approx. twice as the amount of energy capacity as button-type alkaline batteries.
Excellent discharge load characteristics Employing an alkaline electrolyte, the SR battery features excellent discharge load characteristics. Depending on the composition of the electrolytes, two models are available;
(1) a low-drain type for analog watches, and
(2) a high-drain type for multi-function watches incorporating an alarm, illumination light, etc.
Superior leakage* resistance Featuring Maxell's original leak-resistant processing, the SR battery has excellent leakage resistance, which suppresses the electrolyte from rising up and seeping out — a basic phenomenon of alkaline electrolytes.

*Leakage is defined as an unintended escape of liquid from a battery.

Principle and reaction

The button-type silver oxide battery uses silver oxide (Ag2O) as its positive active material and zinc (Zn) as its negative active material. Potassium hydroxide (KOH) (W-type) or sodium hydroxide (NaOH) (SW-type) is used as an electrolyte.
Battery Reactions Positive reaction :     Ag2O+H2O+2e- → 2Ag+2OH-
Negative reaction :     Zn+2OH- → ZnO+H2O+2e-
Total reaction :     Ag2O+Zn → 2Ag+ZnO

    -Film Cameras
    -Medical Instruments, Cash Registers
    -FA Instruments (Measuring Instruments, Onboard Microcomputers, Sensors)


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