LR44 batteries are among the most widely used button-cell batteries in the world. Known for their versatility, these alkaline batteries power a wide range of devices, including watches, calculators, thermometers, toys, flashlights, and laser pointers. Compact in size but powerful in performance, LR44 batteries deliver reliable 1.5V output to keep everyday electronics running smoothly. This guide dives into everything you need to know: specifications, applications, advantages, lifespan, comparisons, safety, and FAQs—all in one place.

What is an LR44 Battery?

The LR44 battery is a small alkaline button cell that produces a nominal voltage of 1.5 volts. It is one of the most popular battery types because of its affordability, wide availability, and compatibility with hundreds of consumer devices. Its compact size allows it to fit in precision electronics while still providing steady, dependable energy output.

Specifications of LR44 Batteries

• Battery Type: Alkaline Button Cell
• Nominal Voltage: 1.5V
• Capacity: Around 110–130 mAh
• Diameter: 11.6 mm
• Height: 5.4 mm
• Weight: Approximately 2 grams
• Common Equivalents: AG13, A76, 357, SR44 (silver oxide)
• Operating Temperature Range: -10°C to +60°C

The higher capacity compared to smaller button cells makes LR44 batteries suitable for both low-drain and medium-drain devices.

Where Are LR44 Batteries Used?

Because of their balance of size and power, LR44 batteries are used across a wide spectrum of devices:

• Wristwatches and smartwatches
• Calculators
• Digital thermometers
• Toys and novelty gadgets
• Medical devices like blood glucose meters
• Laser pointers and LED lights
• Digital cameras (specific models)

Simply put, if you own small electronics, chances are you’ve used or replaced an LR44 battery.

LR44 vs SR44 Batteries

LR44 (alkaline) and SR44 (silver oxide) batteries share the same physical dimensions but differ in performance:

• LR44: More affordable, good for toys, calculators, and everyday devices. Voltage drops gradually as power drains.
• SR44: More expensive, designed for cameras, watches, and medical devices requiring stable voltage. Longer-lasting than LR44.

While SR44 batteries outperform LR44 in precision electronics, LR44 batteries remain the most economical option for general use.

Advantages of LR44 Batteries

• Affordable and available worldwide
• Compatible with a huge number of devices
• Higher capacity than smaller button cells
• Reliable power output for both low- and medium-drain devices
• Lightweight and easy to store in bulk

Lifespan and Storage

LR44 batteries typically last between 6 months and 2 years in active devices, depending on usage. Shelf life ranges from 3 to 5 years when stored properly in a cool, dry place. To maximize performance, avoid storing them in extreme heat, moisture, or direct sunlight.

Safety Considerations

LR44 batteries are small enough to be swallowed, making them dangerous for children and pets. Ingestion can cause serious injury due to leakage or electrical current. Always store them securely, avoid mixing old and new batteries, and recycle depleted cells responsibly through battery recycling programs.

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Frequently Asked Questions (FAQ)