button battery size guide

Alkaline Button Batteries

Alkaline button batteries are a popular choice‚ offering reliable power for everyday devices. They feature a manganese dioxide cathode and zinc anode‚ providing a steady voltage of 1.5V. Known for their long shelf life and moderate energy density‚ alkaline batteries are widely used in watches‚ calculators‚ and remote controls. They are cost-effective and available in common sizes like LR44 and LR1154. However‚ they may not last as long as silver-oxide or lithium types in high-drain applications. Despite this‚ their affordability and accessibility make them a preferred option for general use.

Lithium Button Batteries

Lithium button batteries are high-performance power sources‚ widely used in devices requiring high energy density. They typically use lithium manganese dioxide (LiMnO2) chemistry‚ offering a nominal voltage of 3V. Known for their long lifespan and reliability‚ lithium batteries are ideal for watches‚ medical devices‚ and other high-drain applications. They provide consistent power output and resist self-discharge effectively. Common sizes include CR2032‚ CR2450‚ and CR2430. These batteries are lightweight and durable‚ making them a preferred choice for advanced electronic devices. Their superior performance justifies their higher cost compared to alkaline or silver-oxide alternatives.

Silver-Oxide Button Batteries

Silver-oxide button batteries are renowned for their high energy density and stable voltage output‚ making them ideal for precision devices. They typically operate at 1.55V and are commonly used in watches‚ calculators‚ and medical devices. With a long shelf life and reliable performance‚ these batteries are a popular choice for applications requiring consistent power. Their chemistry ensures minimal self-discharge‚ maintaining energy over extended periods. Common sizes include SR44‚ SR936‚ and SR920SW. Silver-oxide batteries are preferred for their durability and suitability in low-drain applications‚ offering a balance of performance and longevity.

Zinc-Air Button Batteries

Zinc-air button batteries are known for their high energy density and long shelf life. They are activated by exposure to air‚ providing a reliable power source for devices like hearing aids and medical equipment. With a nominal voltage of 1.4V‚ these batteries are designed for low-drain applications. Their unique chemistry offers a prolonged service life‚ making them ideal for specialized uses. Common sizes include PR44 and PR920. Zinc-air batteries are environmentally friendly‚ containing fewer toxic materials‚ and are recyclable. Their performance and durability make them a preferred choice for applications requiring consistent‚ long-lasting power.

Common Button Battery Sizes

Common button battery sizes include SR44‚ LR44‚ CR2032‚ and CR2450‚ each designed for specific applications like watches‚ calculators‚ and medical devices‚ ensuring reliable performance.

SR44 (SR44W‚ SR44SW)

The SR44‚ also known as SR44W or SR44SW‚ is a popular button battery type widely used in watches‚ calculators‚ and small electronic devices. It operates at 1.55V with a capacity of approximately 150-200mAh. Known for its reliable performance‚ the SR44 is a silver-oxide battery‚ offering long shelf life and stable voltage. The SR44W and SR44SW variants are interchangeable in most applications‚ though slight differences in physical dimensions may exist. Commonly found in timepieces‚ fitness trackers‚ and medical devices‚ the SR44 is a versatile power source. Always check your device for specific size requirements to ensure compatibility and optimal performance.

LR44 (LR1154)

The LR44‚ also known as LR1154‚ is a widely used alkaline button battery with a voltage of 1.5V and a capacity of approximately 100-130mAh. Commonly found in devices like remote controls‚ toys‚ and calculators‚ it is known for its reliable performance and long shelf life. The LR44 is often interchangeable with other alkaline or silver-oxide batteries of similar size‚ such as the AG13 or A76. When using LR44 batteries‚ ensure proper handling to avoid leakage or explosion risks. Always store them in a cool‚ dry place to maintain their longevity and performance efficiency over time.

CR2032

The CR2032 is a lithium button battery with a nominal voltage of 3V and a capacity of approximately 225mAh. Widely used in devices such as calculators‚ watches‚ and computer motherboards‚ it is known for its long shelf life and reliable performance. The CR2032 measures 20mm in diameter and 3.2mm in height‚ making it a common choice for small electronic devices. Its high energy density ensures extended usage in low-drain applications. Proper storage in a cool‚ dry place is recommended to maintain its effectiveness. The CR2032 is also interchangeable with equivalent models like the DL2032 or ECR2032‚ ensuring versatility across various applications.

CR2450

The CR2450 is a lithium button battery with a nominal voltage of 3V and a capacity of approximately 620mAh. It measures 24.5mm in diameter and 5mm in height‚ making it suitable for applications requiring higher energy density. Commonly used in devices like smart cards‚ fitness trackers‚ and remote controls‚ the CR2450 is known for its reliability and long-lasting performance. Its high capacity ensures extended use in low-drain devices. Proper storage in a cool‚ dry place is recommended to maintain its effectiveness. The CR2450 is also interchangeable with equivalent models like the DL2450 or ECR2450‚ offering flexibility for various applications.

Applications of Button Batteries

Button batteries power devices like watches‚ medical devices‚ children’s toys‚ thermometers‚ and calculators. Their compact size and reliable energy output make them ideal for small‚ portable electronics.

Watches and Timepieces

Button batteries are essential for powering watches and timepieces‚ offering reliable energy for accurate timekeeping. Common sizes like SR44‚ LR44‚ and CR2032 are widely used due to their compact design and long lifespan. Silver-oxide batteries‚ such as SR44‚ provide consistent voltage and high capacity‚ making them ideal for watches. Lithium batteries‚ like CR2032‚ offer even longer battery life and are resistant to leakage. Always ensure the correct size and type are used for optimal performance. Refer to a cross-reference chart to find compatible replacements and maintain precise timekeeping for your device.

Medical Devices

Button batteries are crucial for powering medical devices‚ ensuring precise functionality and reliability. Commonly used in devices like glucose monitors‚ insulin pumps‚ and blood pressure cuffs‚ these batteries provide the necessary energy for accurate readings. Lithium batteries‚ such as CR2032 and CR2450‚ are popular due to their high energy density and long lifespan. Silver-oxide batteries‚ like SR44‚ are also widely used in hearing aids and medical instruments for their consistent voltage and high capacity. Always select the correct size and type to maintain device performance and patient safety‚ referencing a cross-guide chart for compatibility. Proper battery selection is vital for reliable medical device operation.

Children’s Toys

Button batteries are widely used in children’s toys‚ such as remote-controlled cars‚ talking toys‚ and interactive games. Alkaline batteries like LR44 and lithium batteries like CR2032 are common choices due to their reliable performance. These batteries provide the power needed for features like lights‚ sounds‚ and motion. When selecting batteries for toys‚ ensure they fit securely to prevent ingestion risks. Using the correct size and type‚ as outlined in a cross-reference guide‚ ensures optimal functionality and safety. Always check the toy’s specifications to choose the appropriate battery‚ guaranteeing long-lasting performance and safe operation for children’s devices.

Safety and Handling of Button Batteries

Proper handling ensures safe use. Store batteries away from children‚ avoid mixing old and new ones‚ and dispose of them correctly to prevent environmental and health hazards.

Safety Regulations

Button batteries must comply with strict safety regulations to prevent hazards. These include UN transportation standards‚ IEC certifications‚ and ISO standards for design and testing. Batteries should bear safety marks like CE or UL certification. Compliance ensures they meet global safety requirements. Proper handling and storage are essential to avoid accidents. Disposal must follow environmental regulations to prevent contamination. Adhering to these guidelines helps protect users and the environment. Always check for certifications and follow local laws for safe battery use and disposal.

Proper Storage

Proper storage of button batteries is crucial for maintaining their performance and safety. Store them in a cool‚ dry place away from moisture and extreme temperatures. Avoid exposure to humidity and direct sunlight‚ as this can degrade battery life. Use protective covers or cases to prevent physical damage and ensure they are not crushed or bent. Keep batteries away from metal objects to avoid short circuits. Store them in their original packaging or a secure container to prevent contact with other metals. Always keep batteries out of reach of children and pets for safety. Proper storage extends battery life and ensures reliable performance when needed.

Disposal Methods

Proper disposal of button batteries is essential for environmental safety. Recycle batteries through designated centers or programs that accept hazardous waste. Check local regulations for specific guidelines‚ as some communities have specialized collection events. Do not dispose of button batteries in regular trash‚ as they can leak toxic materials. Tape the terminals to prevent short circuits during disposal. For lithium batteries‚ ensure they are handled separately from alkaline or silver-oxide types. Always follow local environmental guidelines to minimize ecological impact and ensure safe disposal practices. Proper disposal helps protect the environment and reduces potential hazards.

Button Battery Cross-Reference Guide

This guide helps identify equivalent button battery sizes and types‚ ensuring compatibility across devices. It lists replacements for common batteries like SR44W and CR2032‚ simplifying selection.

Equivalent Battery Sizes

Button batteries often have multiple equivalent sizes‚ ensuring compatibility across devices. For example‚ SR44W can be replaced with SR44 or LR44‚ while CR2032 matches CR2450 in some cases. These equivalencies allow users to select from various brands while maintaining performance. Manufacturer-specific codes‚ like Energizer’s A76 and Duracell’s DL2032‚ refer to the same physical battery size. Cross-referencing guides help users identify these matches‚ ensuring proper fitment and function. This simplifies battery replacement‚ especially when the exact model is unavailable. Always verify dimensions and voltage to ensure safe and optimal performance in your device.

Manufacturer Comparison

Leading manufacturers like Energizer‚ Duracell‚ and Panasonic offer button batteries with varying chemistries and performance. Energizer’s A76 is equivalent to Duracell’s DL2032‚ both powering devices like watches. Panasonic’s CR2032 matches these in size and voltage‚ ensuring compatibility. Silver-oxide batteries‚ such as Seiko’s SB-B8‚ are favored for precision devices. Lithium-based options‚ like Renata’s CR2450‚ offer higher energy density. Cross-referencing manufacturer codes simplifies selection‚ as many brands share similar specifications. This comparison helps users identify suitable replacements‚ ensuring optimal performance across devices. Always check specifications to confirm compatibility and voltage requirements for safe operation.