Description
23A Battery Overview: Specifications, Uses, and Features
23A batteries—also designated as 23A, MN21, V23GA, or 8LR932—are compact, high-voltage alkaline or zinc-carbon batteries widely used in small electronic devices. Delivering a nominal voltage of 12 volts, these cylindrical power sources are ideal for applications requiring a reliable, long-lasting energy supply in a minimal footprint.
Key Specifications:
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Dimensions: Approximately 10.3 mm in diameter and 28.5 mm in height, making them slightly slimmer than an AAA battery but taller.
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Chemistry: Typically available in alkaline (for longer life and better performance) or zinc-carbon (a more economical option).
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Capacity: Ranges between 55–65 mAh (milliampere-hours), suitable for low-drain devices.
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Terminal Type: Features a standard button-top (positive) and flat-bottom (negative) design for easy insertion.
Common Applications:
Due to their compact size and stable voltage output, A23 batteries are frequently used in:
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Remote controls (garage door openers, car key fobs)
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Keyless entry systems (automotive and security devices)
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Small electronic gadgets (LED lights, calculators, laser pointers)
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Backup power sources (smoke alarms, medical devices)
Performance & Longevity:
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Non-Rechargeable: Designed for single-use; attempting to recharge them may cause leakage or failure.
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Long Shelf Life: Alkaline variants can retain power for 5–10 years when stored properly (cool, dry conditions).
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Low Self-Discharge: Loses less than 5% of charge per year, making them reliable for backup applications.
Advantages Over Alternatives:
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Higher Voltage: Unlike standard 1.5V cells (AA, AAA), the 12V output reduces the need for multiple batteries in series.
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Compact & Lightweight: Ideal for space-constrained devices.
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Wide Availability: Sold at most electronics and hardware stores under brands like Duracell, Energizer, and Panasonic.
Disposal & Environmental Considerations:
Since 23A batteries contain alkaline or zinc-carbon chemistry, they should be recycled at designated e-waste facilities rather than discarded in regular trash to minimize environmental impact.
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