Maxell LR43 Alkaline Battery – Compact, Consistent, and Reliable Power

The Maxell LR43 alkaline battery is a 1.5V button cell built to deliver dependable energy to compact electronics. From watches and cameras to medical devices, calculators, and small instruments, the LR43 provides consistent voltage, excellent leak resistance, and a long shelf life. Its combination of slim profile and reliable performance makes it a top choice for devices that require steady power in a small, lightweight form factor.

Understanding the Maxell LR43 Alkaline Button Cell

The LR43 measures 11.6mm in diameter and 4.2mm in thickness, with a capacity of approximately 115 mAh. Its alkaline chemistry offers stable power output for low-drain and intermittent-use devices, while being cost-effective compared to silver oxide alternatives. This balance of size, capacity, and affordability makes the LR43 a versatile solution for many compact electronics.

Core Specifications

• Model: Maxell LR43
• Voltage: 1.5 Volts
• Capacity: Approximately 115 mAh
• Chemistry: Alkaline
• Diameter: 11.6 mm
• Height: 4.2 mm
• Weight: Around 1.6 grams
• Operating Temperature: -10°C to +60°C

Why Choose the Maxell LR43?

The Maxell LR43 alkaline button cell for compact devices is known for its balance of compact size, strong capacity, and reliability. Maxell’s quality control ensures consistent energy delivery, long storage life, and dependable performance across a range of applications.

Key Advantages

1. Compact Profile: Fits perfectly in small electronic devices.
2. Stable Voltage: Provides steady 1.5V output for accurate performance.
3. Leak-Resistant Design: Protects sensitive devices from damage.
4. Long Shelf Life: Retains charge when stored properly for years.
5. Trusted Brand: Backed by Maxell’s engineering and manufacturing standards.

Common Applications for the Maxell LR43

This battery powers a variety of everyday and specialized devices where compact, reliable energy is essential.

1. Watches and Cameras

The long-lasting 1.5V battery for watches and cameras ensures accurate timekeeping and dependable camera operation without frequent replacements.

2. Medical Instruments

The reliable LR43 battery for medical instruments provides steady power to diagnostic tools like thermometers and certain portable monitors.

3. Calculators

Used in scientific, financial, and pocket calculators for consistent performance.

4. Small Electronic Meters

Powers compact measuring tools that require stable voltage for accurate readings.

5. Specialty Electronics

Found in small toys, laser pointers, and novelty gadgets that rely on button cell power.

Performance and Reliability

The Maxell LR43 maintains a steady discharge curve, ensuring devices function at peak performance until near depletion. Its alkaline chemistry provides a good balance of cost, capacity, and availability.

Voltage Stability

Maintains a steady 1.5V output for the majority of its service life, reducing the risk of malfunction in sensitive electronics.

Temperature Endurance

Performs reliably in temperatures ranging from -10°C to +60°C, suitable for a wide range of environments.

Comparing the LR43 to Other Button Cells

The LR43 is slimmer than the LR44 but offers more capacity than the smaller LR41, making it a versatile mid-sized choice for many applications.

Battery Type	Diameter	Thickness	Voltage	Capacity	Common Uses
LR41	7.9 mm	3.6 mm	1.5V	~25 mAh	Thermometers, watches
LR43	11.6 mm	4.2 mm	1.5V	~115 mAh	Watches, medical devices, calculators
LR44	11.6 mm	5.4 mm	1.5V	~110 mAh	Watches, calculators, toys

Proper Storage and Handling

Store LR43 batteries in a cool, dry place away from heat and direct sunlight. Keep them in their original packaging until use to prevent short-circuiting and discharge loss.

Replacing an LR43 Battery

1. Locate the battery compartment on your device.
2. Open it carefully using the correct tool or latch.
3. Note the polarity before removing the old battery.
4. Insert the new Maxell LR43 with correct orientation.
5. Close the compartment and test your device.

Environmental Considerations

Dispose of LR43 batteries at authorized recycling centers. Alkaline button cells should not be thrown in household waste to avoid environmental contamination.

Conclusion

The Maxell LR43 is a compact, reliable, and versatile alkaline button cell ideal for small electronics that demand steady, long-term power. Whether keeping your watch ticking, your medical instrument functional, or your camera ready, this battery delivers the performance and dependability you can trust. With its stable voltage, long shelf life, and proven durability, the LR43 remains a go-to choice for both personal and professional applications.