Exploring A23 Batteries Size Chemistry and Uses

In the world of small electronics, one component often goes unnoticed despite its crucial role in our daily lives—the A23 battery. This compact power source quietly energizes countless remote control devices, from car key fobs to garage door openers. Though small in stature, this 12-volt powerhouse plays an outsized role in wireless technology.

Consumers may encounter confusion when shopping for A23 batteries due to their numerous manufacturer-specific designations. These include 23AE, GP23A, V23GA, LRV08, 8LR932, 8LR23, MN21, and L1028—all referring to the same battery type. This proliferation of names stems from different branding conventions across regions and manufacturers, much like how pharmaceutical companies market generic drugs under various trademarks.

Measuring approximately 28mm in length and 10mm in diameter—about two-thirds the size of a standard AAA battery—the A23 weighs a mere 8 grams. Its most remarkable feature is its 12-volt output, achieved through an innovative internal configuration of eight 1.5V LR932 alkaline button cells connected in series. This design effectively stacks the voltage while maintaining a miniature form factor ideal for space-constrained devices.

The A23 battery serves as the energy backbone for numerous wireless control systems:

• Automotive key fobs: Powers remote locking, unlocking, and vehicle location functions
• Home security systems: Energizes wireless door/window sensors and motion detectors
• Garage door openers: Provides the necessary voltage for reliable signal transmission
• Early Bluetooth devices: Some compact headsets utilized A23 batteries before rechargeable lithium-ion became standard
• Various remote controls: Including wireless doorbells, electronic lighters, and specialty toys

When selecting batteries, understanding key differences prevents compatibility issues:

A23 vs. N batteries: While similar in size, N batteries typically output only 1.25-1.5V compared to A23's 12V. Using an N battery in a device requiring 12V will render it inoperable and may cause damage.

A23 vs. A27 batteries: Both provide 12V, but the A27 has a 20% smaller diameter and consequently lower capacity. The choice depends on device dimensions and power requirements.

With a typical capacity of 55mAh, A23 batteries demonstrate adequate performance for intermittent remote control use. However, like all alkaline batteries, they experience gradual self-discharge—losing about 2-3% of charge monthly when stored at room temperature. For optimal performance:

• Purchase from reputable manufacturers
• Check expiration dates before buying
• Observe proper polarity during installation
• Store in cool, dry environments away from children
• Dispose of spent batteries at designated recycling centers

As electronic devices continue shrinking, battery manufacturers face increasing demands for:

• Higher energy density within the same form factor
• Reduced self-discharge rates for longer shelf life
• More environmentally sustainable materials and production methods

The humble A23 battery exemplifies how miniature components can enable significant technological conveniences. Understanding its specifications and proper usage ensures reliable operation of the many devices that depend on this compact power source.