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LR44 1.5V Alkaline Button Cell Battery AG13/A76 for Toys, Calculators, and Mini Flashlights

LR44 1.5V Alkaline Button Cell Battery AG13/A76 for Toys, Calculators, and Mini Flashlights

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ComponentSpecification
ChemistryAlkaline
ModelLR44 (also known as AG13, A76, L1154)
Nominal Voltage1.5V
Capacity~110mAh to 150mAh
Diameter11.6 mm
Height5.4 mm
WeightApprox. 1.9g
Price
₹ 12.71 ₹ 12.71
(Tax included)

Product Description The LR44 is one of the most widely used button cell batteries in the world, known for its reliable 1.5V output and compact cylindrical design. This alkaline cell is the standard power source for small electronic devices that require low-to-medium power over a long duration. From digital calipers and laser pointers to musical greeting cards and miniature LED toys, the LR44 provides a cost-effective and dependable energy solution. Its robust construction ensures leak resistance and a steady discharge rate throughout its lifespan.

Key Features

  • Universal Compatibility: Directly replaces AG13, A76, L1154, and 357 models.

  • High Energy Density: Delivers significant power for its miniature size.

  • Stable Discharge: Maintains a consistent voltage level for precision instruments like digital thermometers.

  • Long Shelf Life: Advanced alkaline technology minimizes self-discharge for long-term storage.

  • Leak-Resistant Casing: Designed to protect sensitive internal electronics from battery corrosion.

Technical Details

  • Operating Temperature: -10°C to +60°C

  • Storage Temperature: 10°C to 25°C

  • Terminal Type: Flat contact surface

  • Self-Discharge Rate: ~2-3% per year (at room temperature)

  • Standard Discharge Current: 0.2mA

Prototyping and Engineering Tips from Robogears

  • Series Stacking: Many small toys and laser pointers stack three LR44 cells in a tube to achieve a 4.5V output. When designing a battery compartment for stacking, ensure the spring tension is high enough to maintain contact but not so high that it crushes the battery seals.

  • Clean Contacts: Button cells are sensitive to skin oils. Before installing, wipe the battery with a dry cloth; fingerprints can create a high-resistance film that reduces the battery's effective runtime.

  • Non-Rechargeable Warning: This is a primary alkaline cell. Never attempt to recharge it. Attempting to charge an LR44 can cause internal gas buildup and leakage.

  • Voltage Sag: If you are using these to power a micro-buzzer or a small LED, be aware that the voltage may "sag" under high pulse loads. For high-current applications, consider using a larger coin cell like the CR2032.

Package Includes

  • 1 x LR44 1.5V Alkaline Button Battery

Disclaimer Images are for reference; actual brand marking or packaging may vary by batch. Specifications subject to change by manufacturer. Keep away from small children due to choking hazards.