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GP 27A 12V High-Voltage Alkaline Battery for Remote Controls and Keyless Entry

GP 27A 12V High-Voltage Alkaline Battery for Remote Controls and Keyless Entry

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ComponentSpecification
BrandGP Batteries
ChemistryAlkaline (Manganese Dioxide)
Model27A / L828 / MN27
Nominal Voltage12.0V
Capacity~20mAh
Terminal TypeButton Top
Shelf LifeUp to 3 Years
Price
₹ 25.42 ₹ 25.42
(Tax included)

Product Description The GP 27A is a specialized high-voltage alkaline battery designed specifically for devices that require high-tension pulses in a micro-sized form factor. While it may look similar to a standard AAA battery, it is significantly smaller and packs a powerful 12V punch. This battery is the industry standard for small RF (Radio Frequency) transmitters, including car key fobs, garage door openers, wireless doorbells, and specialized photographic equipment. Its advanced alkaline chemistry ensures a stable voltage discharge, providing reliable long-range transmission for your remote-controlled devices.

Key Features

  • High Voltage Density: Delivers 12V from a tiny cylindrical cell, essential for triggering RF signals.

  • Leak-Proof Construction: Engineered by GP Batteries to protect your sensitive remote control circuitry from corrosion.

  • Stable Pulse Power: Maintains the high voltage required to ensure consistent range and signal strength.

  • 0% Mercury Added: Environmentally conscious formula that meets modern safety standards.

  • Reliable Brand: GP is a global leader in specialty batteries, ensuring strict quality control and fresh stock.

Technical Details

  • Dimensions: 28.2 mm (Height) x 8.0 mm (Diameter)

  • Average Weight: 4.4g

  • Interchangeable With: G27A, MN27, GP27A, L828, EL812, 27A, EL812, CA22, B-1, SNN4176A

  • Operating Temperature: 0°C to +45°C

  • Storage Temperature: 10°C to 25°C

Prototyping and Engineering Tips from Robogears

  • RF Project Secret: If you are building a custom 433MHz or 315MHz wireless transmitter, this battery is your best friend. Most small RF modules require at least 9V to 12V to achieve their maximum advertised range. Using a 27A battery allows you to keep your remote enclosure incredibly small while still hitting those long distances.

  • Current Limitations: Remember that the 27A is designed for "pulses." It has a very low capacity (~20mAh). Do not use this to power a microcontroller (like an Arduino) or a motor directly; the high internal resistance will cause the voltage to collapse immediately under continuous load.

  • The "Stack" Inside: If you ever carefully open a 27A battery (not recommended!), you will see it actually contains 8 tiny 1.5V button cells stacked together to reach 12V. This is why it is so powerful yet has low capacity.

  • Polarity Warning: In small remote housings, the spring is almost always the Negative (-) terminal. Ensure the battery is seated firmly, as these small cells can sometimes shift during heavy use or drops.

Package Includes

  • 1 x GP 27A 12V High-Voltage Alkaline Battery

Disclaimer Images are for reference; actual packaging (blister pack vs. loose) may vary by batch. This is a non-rechargeable (primary) battery; DO NOT attempt to charge it.