Ideal for watches, calculators and small electronic devices requiring SR521SW silver oxide batteries.
Regular price
$9.95 AUD
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$9.95 AUD
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Trusted Energizer watch battery performance
Stable power for precision low-drain devices
Longer life than standard alkaline batteries
Sold individually for convenience
The Energizer 379 silver oxide watch battery is a precision 1.55V coin cell designed for small electronic devices that require stable, low-drain power. Commonly used in watches, calculators, and compact electronics, it delivers consistent voltage and dependable long-term performance.
Equivalent to SR521SW, this battery is suited to low-drain applications where reliability is essential. Silver oxide chemistry provides a more stable output and longer service life compared to standard alkaline alternatives, making it ideal for precision devices.
Sold individually, this battery is perfect for replacing a single worn-out cell or keeping a spare ready when needed.
Key Features
379 silver oxide watch battery
1.55V nominal voltage
Equivalent to SR521SW
Stable voltage output for precision devices
Longer lasting than alkaline alternatives
Designed for low-drain applications
Reliable Energizer performance
Specifications
Brand
Energizer
Model
379TZ
Battery Type
Silver Oxide
Voltage
1.55V
Capacity
14.5mAh
Size
SR521
Equivalent Codes
SR521SW
Rechargeable
No
Application
Watches, calculators, small electronics
Unit of Measure
Each
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What devices use a 379 battery?
It’s commonly used in watches, calculators, and small electronic devices.
Is this the same as SR521SW?
Yes. The 379 is equivalent to SR521SW and is designed for low-drain applications.
Is this battery rechargeable?
No. This is a single-use silver oxide battery.
Can I replace an alkaline battery with this?
Yes, if the size matches. Silver oxide batteries provide more stable voltage and longer life.
How long will it last?
Battery life depends on the device, but silver oxide batteries are designed for long-lasting, consistent performance.
