Energizer Alkaline LR44/A76 Coin Cell Batteries, Set of 4

LR44 / A76 Alkaline Button Cell Battery

The LR44/A76 is a compact, high‑performance button cell that delivers a steady 1.5 V output. Designed for miniature electronic devices, it combines reliable chemistry with a small form factor to provide long‑lasting power in tight spaces.

Key Technical Specifications

• Voltage: 1.5 V (standard alkaline)
• Capacity: Approximately 150 mAh for most models, ensuring extended operation in low‑current devices.
• Dimensions: Diameter 11.6 mm × Height 5.4 mm – a size that fits comfortably into watches, key fobs, medical sensors, and many other compact gadgets.
• Chemistry: Alkaline‑manganese (AG13) providing stable voltage over the battery’s life span.
• Temperature Range: Operates reliably from –20 °C to +60 °C, making it suitable for both indoor and outdoor applications.
• Shelf Life: Up to 10 years when stored in a cool, dry environment, thanks to the low self‑discharge rate of alkaline cells.

Applications and Device Compatibility

The LR44/A76 is engineered for devices that demand a small, lightweight power source without compromising on performance. Common uses include:

• Digital watches and alarm clocks
• Keyless entry systems and remote controls
• Medical monitoring equipment (e.g., glucose meters, blood pressure monitors)
• Portable medical devices such as hearing aids and pacemaker batteries
• Electronic toys and hobbyist projects that require a miniature power supply
• Security sensors, motion detectors, and other low‑power IoT modules

Design Features for Reliability

The LR44/A76 incorporates several design elements that enhance its reliability:

• Sealed Construction: Prevents leakage of electrolyte, ensuring safety and longevity.
• Low Self‑Discharge: Maintains charge over extended periods, ideal for devices that are not used frequently.
• Consistent Voltage Output: The alkaline‑manganese chemistry delivers a stable 1.5 V even as the battery ages, reducing the need for voltage regulation in sensitive circuits.

Environmental Considerations

The LR44/A76 is mercury‑free and complies with global environmental regulations such as RoHS. Its compact size also reduces material usage compared to larger batteries, contributing to lower overall resource consumption.

Installation Tips

• Always insert the battery in the correct polarity; the positive side is typically marked on the device or battery compartment.
• Use a clean, dry tool to avoid damaging contacts.
• If replacing an old LR44/A76, remove any residual electrolyte by wiping with a dry cloth before inserting the new cell.

Performance in Real‑World Scenarios

Field tests show that the LR44/A76 can sustain operation for several months in low‑draw devices such as digital clocks and key fobs. In high‑current applications like medical monitors, it maintains performance until the capacity drops below 20 % of its rated value.

Comparative Overview

Conclusion

The LR44/A76 Alkaline Button Cell Battery stands out as a reliable, low‑maintenance power source for a wide array of miniature electronic devices. Its combination of steady voltage, substantial capacity, and environmentally friendly design makes it the preferred choice for manufacturers and consumers alike who demand dependable performance in compact form.