When it comes to small electronic devices, especially hearing aids, finding the right battery is crucial. One of the most common types used is battery size 13. But with so many brands, codes, and alternatives on the market, many users wonder: What is the battery size 13 equivalent? This complete guide will help you understand battery size 13, its equivalents, and how to choose the right one for your device.
What Is a Size 13 Battery?
Size 13 batteries are zinc-air button cells commonly found in behind-the-ear (BTE) hearing aids. They offer a great mix of small size and extended battery life. When the seal is removed, exposure to air triggers the battery to begin supplying power.
Size 13 Battery Specifications
Here are the standard specifications for a size 13 battery:
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Type: Zinc-Air
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Voltage: 1.45V
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Diameter: 7.9 mm (0.31 inches)
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Height: 5.4 mm (0.21 inches)
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Common Applications: Hearing aids, voice recorders, and other small electronics
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Color Code: Orange (used to easily identify size 13 in hearing aid batteries)
Battery Size 13 Equivalents
While size 13 is the standard name, different brands and manufacturers use alternate codes or model numbers for the same battery. Here are the most common equivalents for battery size 13:
Popular Equivalent Codes:
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PR48
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ZA13
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13A
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13AE
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V13AT
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P13
All these codes refer to batteries with the same physical dimensions and power output as the size 13 zinc-air battery.
✅ Tip: Always check your device’s manual or existing battery before buying replacements to ensure compatibility.
How Long Does a Size 13 Battery Last?
The lifespan of a size 13 battery depends on usage and the type of device. On average:
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Daily Use in Hearing Aids: 6 to 14 days
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High-Power Devices: May deplete faster
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Low-Power Devices: May extend battery life
To get the most out of your batteries:
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Store them in a cool, dry place
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Do not remove the tab until you’re ready to use them
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After peeling off the tab, allow the battery to air out for 1-2 minutes before inserting it into your device.
Rechargeable Alternatives
As technology progresses, rechargeable batteries for hearing aids are gaining in popularity
However, they may not always match the performance of traditional zinc-air batteries, especially in terms of runtime.
Rechargeable options closest to size 13 typically use lithium-ion chemistry, but these may require compatible devices and charging systems.
Brands That Offer Size 13 Batteries
Several trusted brands manufacture high-quality size 13 batteries, including:
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Duracell Activair
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Rayovac
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PowerOne
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Energizer
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ZeniPower
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Panasonic
While all follow the size 13 standard, differences in longevity and performance can exist. Opt for reputable brands to ensure consistent power and reliability.
Key Takeaways
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Battery size 13 is a standard zinc-air battery used mainly in hearing aids.
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Common equivalents include PR48, ZA13, 13A, and P13.
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The battery is color-coded orange for easy identification.
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Proper handling and storage can extend its performance.
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Rechargeable versions are available but may vary in compatibility.
Whether you’re replacing a hearing aid battery or shopping for a backup, knowing the size 13 battery equivalents ensures you make the right choice. Always buy from trusted sources, and when in doubt, consult your device manual or a hearing care professional.
Need replacements? Look for PR48 or ZA13 next time you shop—your hearing aids will thank you!
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